Category: 100-51-6

An article One-pot synthesis of Fe3O4@graphite sheets as electrocatalyst for water electrolysis WOS:000541255200099 published article about HYDROGEN EVOLUTION REACTION; DOPED CARBON DOTS; REDUCED GRAPHENE OXIDE; FLUORESCENT-PROBE; FACILE SYNTHESIS; SOLVOTHERMAL ROUTE; NANOPARTICLES; COMPOSITE; FE3O4; FABRICATION in [Atchudan, Raji; Edison, Thomas Nesakumar Jebakumar Immanuel; Lee, Yong Rok] Yeungnam Univ, Sch Chem Engn, Gyongsan 38541, South Korea; [Perumal, Suguna] Kyungpook Natl Univ, Dept Appl Chem, Daegu 41566, South Korea; [Vinodh, Rajangam] Pusan Natl Univ, Sch Elect & Comp Engn, Busan 46241, South Korea; [Muthuchamy, Nallal] Pusan Natl Univ, Dept Chem, Busan 46241, South Korea in 2020.0, Cited 73.0. The Name is Benzyl Alcohol. Through research, I have a further understanding and discovery of 100-51-6. Formula: C7H8O

In this study, Fe3O4@graphite sheets were successfully synthesized in one-pot via a simple hydrothermal method and subsequently employed as an effective electrocatalyst for hydrogen evolution reaction (HER). HER is the crucial electrochemical reactions for the next-generation energy devices. Hydrogen is a clean and renewable energy resource and is one of the most promising candidates for fuel. The shape of the Fe3O4 nanoparticles is nearly spherical with a size of about 10 nm and the Fe3O4 nanoparticles distributed evenly on the graphite sheets. The synthesized Fe3O4@graphite sheets have a specific surface area about 125 m(2) g(-1) with slit-shaped open micro/mesopores. Overall the physicochemical characterization techniques have confirmed the formation, structural stability, and elemental composition of synthesized Fe3O4@graphite sheets. The resulting Fe3O4@graphite sheets were demonstrated towards electrocatalytic HER in 0.1 M KOH solution. The synthesized Fe3O4@graphite sheets delivered the lowest Tafel slope (78 mV dec(-1)) and overpotential (-120 mV(RHE)) at a current density of 10 mA cm(-2). The electrochemical impedance spectroscopy results demonstrate that HER are highly favorable on the Fe3O4@graphite sheets due to the relatively low charge transfer resistance. The experimental results reveal that Fe3O4@graphite sheets possess remarkable electrocatalytic HER activities and are highly stable. The good electrocatalytic activity of Fe3O4@graphite sheet can be ascribed to the synergistic effect between Fe3O4 and graphite sheets, which can facilitate charge transfer kinetics to enhance electrocatalytic HER performance.

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Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

In 2020.0 J TAIWAN INST CHEM E published article about SELECTIVE HYDROGENATION; GAMMA-VALEROLACTONE; FURFURYL ALCOHOL; LEVULINIC ACID; HYDROGENOLYSIS; PERFORMANCE; CONVERSION; INTERFACE; OXIDATION; METHANOL in [Gao, Zhaoping; Huang, Jinding; Geng, Lili; Li, Yunhua] Xiamen Univ, Coll Chem & Chem Engn, Dept Chem & Biochem Engn, Xiamen 361005, Peoples R China; [Imbault, Alexander Luis] Univ Toronto, Dept Chem Engn & Appl Chem, 200 Coll St, Toronto, ON M5S 3E5, Canada; [Shen, Dazhi] Minnan Normal Univ, Coll Chem Chem Engn & Environm, Zhangzhou 363000, Peoples R China in 2020.0, Cited 32.0. The Name is Benzyl Alcohol. Through research, I have a further understanding and discovery of 100-51-6. COA of Formula: C7H8O

Selective hydrogenation of biomass oxygenates to valuable chemicals is a desired catalytic process from energy and environment. Traditional catalysts for selective hydrogenation of biomass oxygenates are prepared from co-impregnation or co-precipitation method. In this work, 93.6% of a 1,4-pentanediol yield as well as high stability was obtained on CeO(2 )supported cobalt and copper species (Cu3Co1/CeO2) by pyrolyzing a MOF composite from one-pot synthesis. Comparison showed that catalytic performances on Cu3Co1/CeO2 were higher than most literature sources, Cu3Co1/CeO2-CP and individual Co-0 or Cu-0 on CeO2. Additionally, Cu3Co1/CeO2 also presents the yields of higher than 92.5% for gamma-valerolactone, furfural, benzaldehyde, acetophenone and phenol to corresponding alcohol products. Characterization results indicated high catalytic results are derived from the coexistence of highly dispersed Cu-0 and strong Lewis acid, copper and cobalt oxides, on Cu3Co1/CeO2 . Redox support CeO2 facilitates dispersion of cobalt while the synergistic effect on dispersion and reduction of cobalt and copper achieves high efficient hydrogenation of biomass oxygenates. (C) 2020 Taiwan Institute of Chemical Engineers. Published by Elsevier B.V. All rights reserved.

Bye, fridends, I hope you can learn more about C7H8O, If you have any questions, you can browse other blog as well. See you lster.. COA of Formula: C7H8O

Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

In 2019.0 EUR J MED CHEM published article about NATURAL-PRODUCTS; ANTIPROLIFERATIVE ACTIVITY; TRYPANOSOMA-CRUZI; IN-VITRO; 1,2,3-TRIAZOLE; PHTHALIDE; APOPTOSIS; TOXICITY; EXTRACTS; DRUGS in [Rodrigues, Michelle Peixoto; Tomaz, Deborah Campos; Teixeira, Robson Ricardo] Univ Fed Vicosa, Dept Quim, Vicosa, MG, Brazil; [de Souza, Luciana Angelo; Onofre, Thiago Souza; de Menezes, Wemerson Aquiles; de Almeida, Marcia Rogeria; Bressan, Gustavo Costa; Rangel Fietto, Juliana Lopes] Univ Fed Vicosa, Dept Bioquim & Biol Mol, Vicosa, MG, Brazil; [Onofre, Thiago Souza] Univ Fed Sao Paulo, Escola Paulista Med, Campus Sao Paulo, Sao Paulo, SP, Brazil; [Almeida-Silva, Juliana; Suarez-Fontes, Ana Marcia; Vannier-Santos, Marcos Andre] Fiocruz MS, Inst Oswaldo Cruz, Rio De Janeiro, RJ, Brazil; [Silva, Adalberto Manoel] Inst Fed Educ Ciencia & Tecnol Catarinense, Araquari, SC, Brazil in 2019.0, Cited 63.0. The Name is Benzyl Alcohol. Through research, I have a further understanding and discovery of 100-51-6. Recommanded Product: 100-51-6

Leishmania braziliensis is one of the pathogenic agents of cutaneous and mucocutanoeous leishmaniasis. There are no validated vaccines to prevent the infection and the treatment relies on drugs that often present severe side effects, which justify the efforts to find new potential antileishmanial drugs. An alternative to promote the discovery of new drugs would be the association of different chemical groups of bioactive compounds. Here we describe the synthesis and bioactivity evaluation against L. braziliensis of cinnamic acid derivatives possessing isobenzofuranone and 1,2,3-triazole functionalities. We tested 25 compounds at 10 mu M concentration against extracellular promastigotes and intracellular amastigotes during macrophage infection. Most compounds were more active against amastigotes than to promastigotes. The derivatives (E)-3-oxo-1,3-dihydroisobenzofuran-5-yl-(3,4,5-trimethoxy) cinnamate (5c), (1-(3,4-difluorobenzyl)-1H-1,2,3-triazol-4-yl)methyl cinnamate (9g), and (1-(2-bromobenzyl)-1H-1,2,3triazol-4-yl)methyl cinnamate (91) were the most effective presenting over 80% toxicity on L braziliensis amastigotes. While compound 5c is a cinnamate with an isobenzofuranone portion, 9g and 9l are triazolic cinnamic acid derivatives. The action of these compounds was comparable to amphotericin B used as positive control. Ultrastructural analysis revealed that 5c-treated parasites showed impaired cytokinesis and apoptosis triggering. Taken together, these results highlight the potential of cinnamic acid derivatives in development of novel anti-leishmanial drugs. (C) 2019 Elsevier Masson SAS. All rights reserved.

Recommanded Product: 100-51-6. Welcome to talk about 100-51-6, If you have any questions, you can contact Rodrigues, MP; Tomaz, DC; de Souza, LA; Onofre, TS; de Menezes, WA; Almeida-Silva, J; Suarez-Fontes, AM; de Almeida, MR; Silva, AM; Bressan, GC; Vannier-Santos, MA; Fietto, JLR; Teixeira, RR or send Email.

Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

Nakkeeran, S; Surya, T; Vinodkumar, S in [Nakkeeran, Sevugapperumal; Surya, Thangavel; Vinodkumar, Selvaraj] Tamil Nadu Agr Univ, Ctr Plant Protect Studies, Dept Plant Pathol, Coimbatore 641003, Tamil Nadu, India published Antifungal Potential of Plant Growth Promoting Bacillus Species Against Blossom Blight of Rose in 2020.0, Cited 64.0. Product Details of 100-51-6. The Name is Benzyl Alcohol. Through research, I have a further understanding and discovery of 100-51-6.

Blossom blight caused by Botrytis cinerea is one among the most devastating diseases that cause complete post-harvest loss in flower crops. The present study focuses on the development of effective bioformulation towards suppression of blossom blight and plant growth promotion in rose. Bacillus amyloliquefaciens (VB2) and Bacillus subtilis (AP) effectively inhibited mycelial growth of B. cinerea in vitro. Genome screening of VB2 and AP revealed the presence of antimicrobial peptide genes including, ituD, ipa14, bacA, bacD, srfA, sfP, spaC, spaS responsible for the biosynthesis of antibiotics such as iturin, bacilysin, bacillomycin, surfactin and subtilin. Further, the presence of volatile antifungal compounds in the bacterial secretome was identified through gas chromatography-mass spectrometry (GC/MS) analysis. Upon treatment, AP accelerated the metabolite profile of the plants and a rise in peak area of antifungal compounds such as, pentadecanoic acid, n-hexadecanoic acid, octadecanoic acid (stearic acid) and tetradecanoic acid was observed. In vitro, VB2 produced maximum indole acetic acid (9.17 mu g/ml) and gibberellic acid (8.20 mu g/ml) in nutrient broth. Under field conditions, foliar spray of VB2 at 0.5% (5 ml/l), four times at weekly interval suppressed blossom blight incidence (64% reduction over control) and also promoted yield. Future research towards development of an effective bioformulation with extended shelf life will aid in the management of various fungal, bacterial and viral diseases in different crop plants.

Welcome to talk about 100-51-6, If you have any questions, you can contact Nakkeeran, S; Surya, T; Vinodkumar, S or send Email.. Product Details of 100-51-6

Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

I found the field of Chemistry very interesting. Saw the article A lysosome specific theranostic NO donor inhibits cancer cells by stimuli responsive molecular self-decomposition with an on-demand fluorescence pattern published in 2019.0. Name: Benzyl Alcohol, Reprint Addresses Gou, SH (corresponding author), Southeast Univ, Pharmaceut Res Ctr, Nanjing 211189, Jiangsu, Peoples R China.; Gou, SH (corresponding author), Southeast Univ, Sch Chem & Chem Engn, Nanjing 211189, Jiangsu, Peoples R China.; Gou, SH (corresponding author), Southeast Univ, Jiangsu Prov Hitech Key Lab Biomed Res, Nanjing 211189, Jiangsu, Peoples R China.. The CAS is 100-51-6. Through research, I have a further understanding and discovery of Benzyl Alcohol

The anticancer mechanism of NO is difficult to study owing to its short lifetime and high reactivity. Thus, a theranostic anticancer NO donor assembled with NO on-demand release abilities, accurate lysosome location capabilities and signal feedback behavior was developed. Profiting from the theranostic properties, the specific mechanism was comprehensively studied. Spectral and cell imaging studies revealed that the as prepared NO donors could release NO in solution or within cancer cells. Fluorescence co-dyeing experiments demonstrated that Mo-Nap-NO entered lysosomes specifically and disrupted them after being triggered by light. Upon irradiation with 460 nm visible light, both the donors demonstrated considerable in vitro anticancer effects. A further mechanistic study showed that after entering the lysosome and being triggered by 460 nm irradiation, NO ruptured the lysosome, resulting in the release of cathepsin D into the cytosol, which activated the caspase3 mediated apoptosis pathway.

Welcome to talk about 100-51-6, If you have any questions, you can contact Hua, WY; Zhao, J; Wang, XY; Pei, SN; Gou, SH or send Email.. Name: Benzyl Alcohol

Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

An article Effect of Structure and Properties of CuO-WO3-ZrO2 on Hydrogenation Catalytic of Benzaldehyde WOS:000489630700020 published article about GAS-PHASE HYDROGENATION; BENZYL ALCOHOL; ALDEHYDES in [Huang Rui; Yao Zhilong; Sun Peiyong; Zhang Shenghong] Beijing Inst Petrochem Technol, Coll Chem Engn, Beijing Key Lab Enze Biomass Fine Chem, Beijing 102617, Peoples R China in 2019.0, Cited 22.0. The Name is Benzyl Alcohol. Through research, I have a further understanding and discovery of 100-51-6. Recommanded Product: 100-51-6

CuO-WO3-ZrO2, catalysts were prepared by co-precipitation method. Structures and surface properties of the catalysts were characterized by X-ray powder diffraction ( XRD), scanning electron microscope (SEM), X-ray fluorescence( XRF), N-2 physisorption, temperature programmed hydrogen reduction (H-2-TPR) , X-ray photoelectron spectroscopy (XPS) and temperature programmed desorption (TPD). Addition of WO3 into CuO-ZrO2 induced the transformation of ZrO2 from monoclinic to tetragonal phases, improved the dispersion of CuO species, changed the acid-base properties of the catalysts as well as the catalyst textural features such as surface area and the average pore diameter. As a consequence, the catalytic performance for the hydrogenation of benzaldehyde to benzyl alcohol was greatly promoted by the introduction of WO3. For the optimal catalyst containing 10% (mass fraction) CuO and 18% (mass fraction) WO3, the conversion of benzaldehyde and the selectivity to benzyl alcohol reached 94. 76% and 92. 03%, respectively.

Recommanded Product: 100-51-6. Bye, fridends, I hope you can learn more about C7H8O, If you have any questions, you can browse other blog as well. See you lster.

Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

Recently I am researching about ACYL-TRANSFERASE; FUNCTIONAL-CHARACTERIZATION; AROMA COMPOUNDS; STRAWBERRY; BIOSYNTHESIS; EVOLUTION; IDENTIFICATION; EXPRESSION; WINES; MELON, Saw an article supported by the National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31301732]; Beijing Municipal Natural Science FoundationBeijing Natural Science Foundation [6192017]; Science and Technology Innovation Ability Construction Projects of Beijing Academy of Agriculture and Forestry Science [KJCX20180411]; China Agriculture Research System for National Technology System for Grape Industry [CARS-29]. Published in ELSEVIER SCI LTD in OXFORD ,Authors: Qian, X; Liu, YR; Zhang, GJ; Yan, AL; Wang, HL; Wang, XY; Pan, QH; Xu, HY; Sun, L; Zhu, BQ. The CAS is 100-51-6. Through research, I have a further understanding and discovery of Benzyl Alcohol. Name: Benzyl Alcohol

This study investigated the accumulation of esters in three hybrid grape cultivars during berry development under two vintages to elucidate the differentiation on their esters biosynthesis. Results showed ‘Moldova’ showed lower esters content than ‘Campbell Early’ and ‘Catawba’ resulting from its limited AAT gene expression and 20 different encoded amino acids. The volatile esters compositions of ‘Campbell Early’ and ‘Catawba’ in both vintages were different. Correlation analysis revealed that concentrations of hexyl acetate, 2-phenethyl acetate, ethyl (E, E)-2,4-hexadienoate and ethyl phenylacetate were related to their corresponding alcohols level, whereas threonine and alanine affected ethyl heptanoate formation. Transcriptome analysis indicated that 1847, 1781 and 1870 DEGs, at E-L 35, 36 and 38, respectively, were characterized between ` Campbell Early’ and ‘Catawba’. The expression level of genes related to the volatile ester precursors biosynthesis, including PRXVIT_ 211s0016g05320, PAO-VIT_217s0000g09100, ACOX-VIT_212s0028g02660, ACOX-VIT_216s0022g01120, echA-VIT_205s0077g00860 and ACOX-VIT_200s0662g00010, exhibited a positive correlation to the concentrations of their corresponding volatile esters.

Bye, fridends, I hope you can learn more about C7H8O, If you have any questions, you can browse other blog as well. See you lster.. Name: Benzyl Alcohol

Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

Recently I am researching about SELECTIVE AEROBIC OXIDATION; ALCOHOL OXIDATION; ALDEHYDES; ACID; EFFICIENT; KETONES; CLEAVAGE, Saw an article supported by the National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [21473184, 21776028]; Natural Science Foundation of Liaoning ProvinceNatural Science Foundation of Liaoning Province [2019-MS-047]; Fundamental Research Funds for the Central UniversitiesFundamental Research Funds for the Central Universities [DUT15RC(3)094]. Name: Benzyl Alcohol. Published in ELSEVIER in AMSTERDAM ,Authors: Tang, YY; Du, ZT; Li, MJ; Wang, WH; Xiao, YH. The CAS is 100-51-6. Through research, I have a further understanding and discovery of Benzyl Alcohol

Catalytic oxidation of alcohols containing heteroatoms with molecular oxygen is usually rather challenging, as transition metal catalysts are easily deactivated by heteroatoms. In contrast to conventional results, herein facile oxidation of 2-pyridinemethanol with dioxgyen was observed over simple vanadium catalysts including VOSO4 or VO(acac)(2), which seemed much easier than that of benzyl alcohol. 2-Pyridinemethanol could coordinate with the vanadium center, which would promote oxidation of 2-pyridinemethanol itself, rather than deactivate vanadium catalysts. This study would provide a new clue to develop efficient catalysts for transformations of heterocyclic compounds.

About Benzyl Alcohol, If you have any questions, you can contact Tang, YY; Du, ZT; Li, MJ; Wang, WH; Xiao, YH or concate me.. Name: Benzyl Alcohol

Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

In 2020.0 ORG LETT published article about NEAR-IR LIGHT; DRUG-DELIVERY; VISIBLE-LIGHT; CHEMISTRY; PHOTOOXYGENATION; RELEASE; PRODRUG in [Watanabe, Kenji; Terao, Nodoka; Kii, Isao; Nakagawa, Reiko; Niwa, Takashi; Hosoya, Takamitsu] RIKEN Ctr Biosyst Dynam Res BDR, Lab Chem Biol, Kobe, Hyogo 6500047, Japan; [Hosoya, Takamitsu] Tokyo Med & Dent Univ TMDU, Inst Biomat & Bioengn, Lab Chem Biosci, Chiyoda Ku, Tokyo 1010062, Japan; [Kii, Isao] RIKEN, Cluster Sci Technol & Innovat Hub, Kobe, Hyogo 6500047, Japan; [Kii, Isao] Shinshu Univ, Inst Agr, Integrated Biosci Div, Lab Drug Target Res, Nagano 3994598, Japan; [Nakagawa, Reiko] RIKEN Ctr Biosyst Dynam Res BDR, Lab Phyloinformat, Kobe, Hyogo 6500047, Japan in 2020.0, Cited 33.0. The Name is Benzyl Alcohol. Through research, I have a further understanding and discovery of 100-51-6. Recommanded Product: 100-51-6

The irradiation of red light-emitting-diode light (lambda = 660 nm) to 3-acyl-2-methoxyindolizines in the presence of a catalytic amount of methylene blue triggered the photooxidation of the indolizine ring, resulting in a nearly quantitative release of alcohols or carboxylic acids within a few minutes. The method was applicable for photouncaging various functional molecules such as a carboxylic anticancer drug and a phenolic fluorescent dye from the corresponding indolizine conjugates, including an insulin- indolizine-dye conjugate.

Recommanded Product: 100-51-6. Welcome to talk about 100-51-6, If you have any questions, you can contact Watanabe, K; Terao, N; Kii, I; Nakagawa, R; Niwa, T; Hosoya, T or send Email.

Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

An article Well-defined N-heterocyclic carbene/ruthenium complexes for the alcohol amidation with amines: The dual role of cesium carbonate and improved activities applying an added ligand WOS:000500909200001 published article about DIRECT AMIDE SYNTHESIS; RUTHENIUM-CATALYZED OXIDATION; DEHYDROGENATIVE AMIDATION; EFFICIENT CATALYSTS; BOND FORMATION; CARBENE; SYSTEMS; ALDEHYDES; PEPTIDES; METHANOL in [Wang, Wan-Qiang] Hubei Univ Arts & Sci, Dept Chem Engn & Food Sci, 296 Longzhong Rd, Xiangyang 441053, Peoples R China; [Wang, Wan-Qiang; Yuan, Ye; Miao, Yang; Wang, Hua-Jing; Wang, Zhi-Qin; Sang, Wei; Chen, Cheng; Verpoort, Francis] Wuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, 122 Luoshi Rd, Wuhan 430070, Hubei, Peoples R China; [Miao, Yang; Wang, Zhi-Qin; Sang, Wei; Verpoort, Francis] Wuhan Univ Technol, Sch Mat Sci & Engn, 122 Luoshi Rd, Wuhan 430070, Hubei, Peoples R China; [Yu, Bao-Yi] Beijing Univ Agr, Key Lab Urban Agr North China, Minist Agr, Beinong Rd 7, Beijing 102206, Peoples R China; [Wang, Hua-Jing] Wuhan Univ Technol, Sch Chem Chem Engn & Life Sci, Wuhan 430070, Hubei, Peoples R China; [Verpoort, Francis] Natl Res Tomsk Polytech Univ, Lenin Ave 30, Tomsk 634050, Russia; [Verpoort, Francis] Univ Ghent, Global Campus,119 Songdomunhwa Ro, Incheon 21985, South Korea in 2020.0, Cited 73.0. Product Details of 100-51-6. The Name is Benzyl Alcohol. Through research, I have a further understanding and discovery of 100-51-6

Dehydrogenative amide bond formation from alcohols and amines has been regarded as an atom-economic and sustainable process. Among various catalytic systems, N-heterocyclic carbene (NHC)-based Ru catalytic systems have attracted growing interest due to the outstanding properties of NHCs as ligands. Herein, an NHC/Ru complex (1) was prepared and its structure was further confirmed with X-ray crystallography. In the presence of Cs2CO3, two NHC/Ru-based catalytic systems were disclosed to be active for this amide synthesis. System A, which did not contain any added ligand, required a catalyst loading of 1.00 mol%. Interestingly, improved catalytic performance was realized by the addition of an NHC precursor (L). Optimization of the amounts of L and other conditions gave rise to system B, a much more potent system with the Ru loading as low as 0.25 mol%. Moreover, an NHC-Ru-carbonate complex 6 was identified from the refluxing toluene of 1 and Cs2CO3, and further investigations revealed that 6 was an important intermediate for this catalytic reaction. Based on the above results, we claimed that the role of Cs2CO3 was to facilitate the formation of key intermediate 6. On the other hand, it provided the optimized basicity for the selective amide formation.

Product Details of 100-51-6. Welcome to talk about 100-51-6, If you have any questions, you can contact Wang, WQ; Yuan, Y; Miao, Y; Yu, BY; Wang, HJ; Wang, ZQ; Sang, W; Chen, C; Verpoort, F or send Email.

Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles