Tag: M.W=100-150

In 2021 J MOL STRUCT published article about LIGHT-EMITTING-DIODES; PHOTOPHYSICAL PROPERTIES; DNA-BINDING; BLUE; 1,10-PHENANTHROLINE; PERFORMANCE; DERIVATIVES; GREEN; PHOSPHORESCENCE; SUBSTITUENTS in [Sahin, Cigdem; Sahin, Murat] Pamukkale Univ, Art&Sci Fac, Dept Chem, Denizli, Turkey in 2021, Cited 44. The Name is 4-Methoxybenzaldehyde. Through research, I have a further understanding and discovery of 123-11-5. Recommanded Product: 4-Methoxybenzaldehyde

Iridium complexes bearing 2-phenylimidazo[4,5-f]-[1,10]-phenanthroline with different substituents (CH3, -CH(CH3)(2), -OCH3, -C6H5) were synthesized and characterized. The effects of different substituents and solvents on the photoluminescence properties of the complexes with [Cl] and [PF6] counter anions have been investigated. The synthesized complexes show high photoluminescence quantum yield due to the extension of the pi-electron conjugation of 2-phenylimidazo[4,5-f][1,10]-phenanthroline ligands. The results indicate that the choice of counter anions ([CI] and [PF6]) has an important influence on the quantum yield of the complexes. In toluene, the compound 4 with phenyl substituent exhibits excimer emission with increasing solution concentrations in the presence of [Cl] counter anion. The linear correlation was observed between the redox potentials of the complexes and Hammett Substituent Constants. The linear correlation can allow the prediction of the effects of substituents on electrochemical studies. (C) 2020 Elsevier B.V. All rights reserved.

Recommanded Product: 4-Methoxybenzaldehyde. About 4-Methoxybenzaldehyde, If you have any questions, you can contact Sahin, C; Sahin, M or concate me.

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

SDS of cas: 100-83-4. Recently I am researching about ALPHA-FLUORINATED ETHERS; LASER FLASH-PHOTOLYSIS; TRANSITION-METAL-FREE; ELECTROCHEMICAL OXIDATION; PHOTOREDOX CATALYSIS; ALCOHOL OXIDATION; NITROXYL RADICALS; ELECTRON-TRANSFER; EFFICIENT; CHEMISTRY, Saw an article supported by the NIHUnited States Department of Health & Human ServicesNational Institutes of Health (NIH) – USA [R35GM119652]; NSFNational Science Foundation (NSF) [CHE-1827902, CHE-1654122, ACI-1053575]. Published in WILEY-V C H VERLAG GMBH in WEINHEIM ,Authors: Lee, JW; Lim, S; Maienshein, DN; Liu, P; Ngai, MY. The CAS is 100-83-4. Through research, I have a further understanding and discovery of 3-Hydroxybenzaldehyde

Applications of TEMPO(.)catalysis for the development of redox-neutral transformations are rare. Reported here is the first TEMPO.-catalyzed, redox-neutral C-H di- and trifluoromethoxylation of (hetero)arenes. The reaction exhibits a broad substrate scope, has high functional-group tolerance, and can be employed for the late-stage functionalization of complex druglike molecules. Kinetic measurements, isolation and resubjection of catalytic intermediates, UV/Vis studies, and DFT calculations support the proposed oxidative TEMPO./TEMPO(+)redox catalytic cycle. Mechanistic studies also suggest that Li(2)CO(3)plays an important role in preventing catalyst deactivation. These findings will provide new insights into the design and development of novel reactions through redox-neutral TEMPO(.)catalysis.

About 3-Hydroxybenzaldehyde, If you have any questions, you can contact Lee, JW; Lim, S; Maienshein, DN; Liu, P; Ngai, MY or concate me.. SDS of cas: 100-83-4

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

Product Details of 100-51-6. Recently I am researching about CROSS-COUPLING REACTIONS; DIARYLMETHYL CARBONATES; DECARBOXYLATIVE BENZYLATION; ASYMMETRIC BENZYLATION; DIMETHYL MALONATE; GRIGNARD-REAGENTS; ALPHA-BENZYLATION; ARYLBORONIC ACIDS; PALLADIUM; ALKYLATION, Saw an article supported by the Research Grant of Institute of Natural Sciences at Nihon University; Japan Society for the Promotion of ScienceMinistry of Education, Culture, Sports, Science and Technology, Japan (MEXT)Japan Society for the Promotion of Science [17K05794]. Published in AMER CHEMICAL SOC in WASHINGTON ,Authors: Tsuji, H; Hashimoto, K; Kawatsura, M. The CAS is 100-51-6. Through research, I have a further understanding and discovery of Benzyl Alcohol

The nickel-catalyzed benzylic substitution of benzyl alcohol derivatives with a soft carbon nucleophile is extremely rare compared to that with a hard carbon nucleophile. We have achieved the nickel-catalyzed benzylic substitution of benzyl esters with malonates as a soft carbon nucleophile. Primary and secondary benzyl 2,3,4,5,6-penta-fluorobenzoates as well as a wide variety of malonate derivatives were well tolerated in the nickel-catalyzed reaction, providing the corresponding alkylation products in 46-86% yields (34 examples). Additionally, we propose a possible reaction mechanism that would undergo via the eta(1)- and eta(3)-benzylnickel intermediates.

Product Details of 100-51-6. About Benzyl Alcohol, If you have any questions, you can contact Tsuji, H; Hashimoto, K; Kawatsura, M or concate me.

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 TMSOTf-Promoted Sulfinylation of Electron-Rich Aromatics with Sodium Arylsulfinates WOS:000516603100008 published article about PALLADIUM-CATALYZED ARYLATION; ARYL BENZYL SULFOXIDES; PROTON-PUMP INHIBITOR; SULFENATE ANIONS; ASYMMETRIC-SYNTHESIS; CHIRAL SULFOXIDES; ENANTIOSELECTIVE ARYLATION; ENANTIOPURE SULFOXIDES; SELECTIVE OXIDATION; DIARYL SULFOXIDES in [Ji, Yuan-Zhao; Li, Hui-Jing; Yang, Hao-Ran; Zhang, Zheng-Yan; Xie, Li-Jun; Wu, Yan-Chao] Harbin Inst Technol, Sch Marine Sci & Technol, 2 Wenhuaxi Rd, Weihai 264209, Peoples R China; [Li, Hui-Jing; Wu, Yan-Chao] Weihai Inst Marine Biomed Ind Technol, Wendeng Dist 264400, Weihai, Peoples R China in 2020.0, Cited 91.0. The Name is m-Methoxyphenol. Through research, I have a further understanding and discovery of 150-19-6. HPLC of Formula: C7H8O2

A new transition-metal-free route for the direct sulfinylation of electron-rich aromatics with sodium arylsulfinates in the presence of TMSOTf is reported. Various electron-rich aromatics, including pyrroles, thiophenes, indoles, and electron-rich arenes, with sodium arylsulfinates are converted into the corresponding sulfoxides in moderate to excellent yields. This protocol possesses many advantages such as readily available and stable starting materials, broad substrate scopes, and transition-metal-free reaction conditions.

HPLC of Formula: C7H8O2. About m-Methoxyphenol, If you have any questions, you can contact Ji, YZ; Li, HJ; Yang, HR; Zhang, ZY; Xie, LJ; Wu, YC or concate me.

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 Ru-Catalyzed (E)-Specific ortho-C-H Alkenylation of Arenecarboxylic Acids by Coupling with Alkenyl Bromides published in 2021. Name: (E)-2-Methylbut-2-enoic acid, Reprint Addresses Goossen, LJ (corresponding author), Ruhr Univ Bochum, Evonik Chair Organ Chem, D-44801 Bochum, Germany.. The CAS is 80-59-1. Through research, I have a further understanding and discovery of (E)-2-Methylbut-2-enoic acid

In the presence of [p-cymene)RuCl2](2), (E)-configured alkenyl bromides couple with aromatic carboxylates to form orthovinylbenzoic acids. This C-H vinylation proceeds in high yields without any activating phosphine ligands and has an excellent functional group tolerance. Starting from commonly available (E/Z)-mixtures of alkenyl bromides, (E)-configured vinyl arenes or dienes are formed exclusively. Mechanistic studies show that this selectivity is achieved because the (E)configured alkenyl bromides undergo a smooth coupling, whereas the (Z)-isomers are rapidly eliminated with the formation of alkynes.

Name: (E)-2-Methylbut-2-enoic acid. About (E)-2-Methylbut-2-enoic acid, If you have any questions, you can contact Hu, ZY; Belitz, F; Zhang, GD; Papp, F; Goossen, LJ or concate me.

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 Pulse radiolysis of carboxylic acids used as ligands of metal oxide nanocluster resists WOS:000482607400002 published article about NANOPARTICLE PHOTORESISTS; AQUEOUS-SOLUTIONS; ABSORPTION-SPECTRA; ELECTRON; PROTONATION; KINETICS; WATER; BASE in [Yamada, Teppei; Muroya, Yusa; Kozawa, Takahiro] Osaka Univ, Inst Sci & Ind Res, Osaka, Ibaraki 5670047, Japan; [Yamashita, Shinichi] Univ Tokyo, Nucl Profess Sch, Sch Engn, Tokai, Ibaraki 3191188, Japan; [Komuro, Yoshitaka; Kawana, Daisuke; Yamazaki, Akiyoshi] Tokyo Ohka Kogyo Co Ltd, Samukawa, Kanagawa 2530114, Japan in 2019, Cited 38. Quality Control of (E)-2-Methylbut-2-enoic acid. The Name is (E)-2-Methylbut-2-enoic acid. Through research, I have a further understanding and discovery of 80-59-1

The radiation-induced reactions of ligands play an important role in the sensitization of metal oxide nanocluster resists. However, the details in the radiation chemistry of ligands for metal oxide nanocluster resists are still unknown. In this study, the radiation-induced reactions of carboxylic acid ligands were investigated using a pulse radiolysis method. The rate constants for the reactions of molecular and ionic forms of tiglic, angelic, o-toluic, and p-toluic acids with hydrated electrons were determined. The rate constants for the reactions of tiglic, angelic, benzoic, o-toluic, and p-toluic acids with dodecane radical cations were also determined. The radical ions of tiglic and angelic acids were more unstable than those of benzoic, o-toluic, and p-toluic acids. The results obtained in this study indicate that the molecular structures of ligands affect their reactivity to cationic and anion species and the stability of their radical cations and anions. (C) 2019 The Japan Society of Applied Physics

Quality Control of (E)-2-Methylbut-2-enoic acid. About (E)-2-Methylbut-2-enoic acid, If you have any questions, you can contact Yamada, T; Muroya, Y; Yamashita, S; Komuro, Y; Kawana, D; Yamazaki, A; Kozawa, T or concate me.

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 Agriculture; Chemistry; Food Science & Technology very interesting. Saw the article Quantitative Dietary Fingerprinting (QDF) -A Novel Tool for Comprehensive Dietary Assessment Based on Urinary Nutrimetabolomics published in 2020.0. Recommanded Product: 3-Hydroxybenzaldehyde, Reprint Addresses Andres-Lacueva, C (corresponding author), Univ Barcelona, Biomarkers & Nutrimetabol Lab, Dept Nutr Food Sci & Gastron,Food Technol Referen, Nutr & Food Safety Res Inst INSA,Fac Pharm & Food, E-08028 Barcelona, Spain.; Andres-Lacueva, C (corresponding author), Inst Salud Carlos III, CIBER Fragilidad & Envejecimiento Saludable CIBER, Barcelona 08028, Spain.. The CAS is 100-83-4. Through research, I have a further understanding and discovery of 3-Hydroxybenzaldehyde

Accurate dietary assessment is a challenge in nutritional research, needing powerful and robust tools for reliable measurement of food intake biomarkers. In this work, we have developed a novel quantitative dietary fingerprinting (QDF) approach, which enables for the first time the simultaneous quantitation of about 350 urinary food-derived metabolites, including (poly)phenolic aglycones, phase II metabolites, and microbial-transformed compounds, as well as other compounds (e.g., glucosinolates, amino acid derivatives, methylxanthines, alkaloids, and markers of alcohol and tobacco consumption). This method was fully validated for 220 metabolites, yielding good linearity, high sensitivity and precision, accurate recovery rates, and negligible matrix effects. Furthermore, 127 additional phase II metabolites were also included in this method after identification in urines collected from acute dietary interventions with various foods. Thus, this metabolomic approach represents one-step further toward precision nutrition and the objective of improving the accurateness and comprehensiveness in the assessment of dietary patterns and lifestyles.

Recommanded Product: 3-Hydroxybenzaldehyde. About 3-Hydroxybenzaldehyde, If you have any questions, you can contact Gonzalez-Dominguez, R; Urpi-Sarda, M; Jauregui, O; Needs, PW; Kroon, PA; Andres-Lacueva, C or concate me.

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 Indole alkaloids indigodoles A-C from aerial parts of Strobilanthes cusia in the traditional Chinese medicine Qing Dai have anti-IL-17 properties WOS:000469157200005 published article about NAIL PSORIASIS; NATURALIS OINTMENT; OBSERVER-BLIND; EFFICACY; EXTRACT; SAFETY in [Lee, Chia-Lin] China Med Univ, Dept Cosmeceut, Taichung 40402, Taiwan; [Lee, Chia-Lin; Wu, Yang-Chang] China Med Univ Hosp, Chinese Med Res & Dev Ctr, Taichung 40447, Taiwan; [Lee, Chia-Lin; Wang, Chien-Ming; Yen, Hung-Rong; Song, Ying-Chyi; Yu, Sheng-Jie] China Med Univ, Chinese Med Res Ctr, Taichung 40402, Taiwan; [Hu, Hao-Chun; Wu, Yang-Chang] Kaohsiung Med Univ, Grad Inst Nat Prod, Kaohsiung 80708, Taiwan; [Yen, Hung-Rong] China Med Univ, Grad Inst Chinese Med, Sch Chinese Med, Coll Chinese Med, Taichung 40402, Taiwan; [Yen, Hung-Rong] China Med Univ Hosp, Dept Chinese Med, Taichung 40447, Taiwan; [Yen, Hung-Rong; Song, Ying-Chyi; Yu, Sheng-Jie] China Med Univ Hosp, Dept Med Res, Res Ctr Tradit Chinese Med, Taichung 40447, Taiwan; [Chen, Chao-Jung] China Med Univ, Grad Inst Integrated Med, Taichung 40402, Taiwan; [Chen, Chao-Jung] China Med Univ Hosp, Dept Med Res, Prote Core Lab, Taichung 40447, Taiwan; [Li, Wei-Chu] Sheng Chang Pharmaceut Co, Taoyuan 32050, Taiwan in 2019.0, Cited 19.0. Formula: C8H8O2. The Name is 4′-Hydroxyacetophenone. Through research, I have a further understanding and discovery of 99-93-4

Qing Dai (Naturalis Indigo) is a traditional Chinese medicine (TCM) used as a topical agent in moderate psoriasis, targeting interleukin-17 (IL-17). In this study, it was prepared from the aerial parts of Strobilanthes cusia. Three undescribed indole alkaloid derivatives, indigodoles A-C, along with seven known compounds were isolated from this preparation of Qing Dai and their structures were elucidated from spectroscopic data, including NMR, MS, UV, IR, optical rotation, and CD. As well, most compounds were tested against IL-17. Indigodole C and tryptanthrin could significantly inhibit IL-17 production of Th17 cells. In addition, indigodole A and indirubin showed notably anti-IL-17 gene expression in dose-dependent effects without cytotoxicities toward Th17 and Jurkat cells, respectively. Overall, our studies indicate that the aforementioned indole alkaloids could contribute to anti-IL 17 properties of Qing Dai.

Formula: C8H8O2. About 4′-Hydroxyacetophenone, If you have any questions, you can contact Lee, CL; Wang, CM; Hu, HC; Yen, HR; Song, YC; Yu, SJ; Chen, CJ; Li, WC; Wu, YC or concate me.

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 AM CHEM SOC published article about CROSS-COUPLING REACTIONS; UNACTIVATED ALKENES; AMINO-ACIDS; HYDROCARBOFUNCTIONALIZATION; PHOSPHONATES; PALLADIUM; ARYLATION; REAGENTS; LIGANDS in [He, Shi-Jiang; Wang, Jia-Wang; Li, Yan; Xu, Zhe-Yuan; Wang, Xiao-Xu; Lu, Xi; Fu, Yao] Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, CAS Key Lab Urban Pollutant Convers, iChEM,Anhui Prov Key Lab Biomass Clean Energy, Hefei 230026, Peoples R China in 2020.0, Cited 68.0. The Name is Benzyl Alcohol. Through research, I have a further understanding and discovery of 100-51-6. COA of Formula: C7H8O

Substantial advances in enantioconvergent C(sp(3))-C(sp(3)) bond formation reactions have been made in recent years through the use of transition-metal-catalyzed cross-coupling reactions of racemic secondary alkyl electrophiles with organometallic reagents. Herein, we report a general process for the asymmetric construction of alkyl-alkyl bonds adjacent to heteroatoms, namely, a nickel-catalyzed enantioconvergent reductive hydroalkylation of olefins with alpha-heteroatom phosphorus or sulfur alkyl electrophiles. Including the use of readily available olefins, this reaction has considerable advantages, such as mild reaction conditions, a broad substrate scope, and good functional group compatibility, making it a desirable alternative to traditional electrophile-nucleophile cross-coupling reactions.

COA of Formula: C7H8O. About Benzyl Alcohol, If you have any questions, you can contact He, SJ; Wang, JW; Li, Y; Xu, ZY; Wang, XX; Lu, X; Fu, Y or concate me.

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

HPLC of Formula: C5H8O2. Madge, I; Gehling, M; Schone, C; Winterhalter, P; These, A in [Maedge, Inga; Gehling, Matthias; Schoene, Cindy; These, Anja] German Fed Inst Risk Assessment, Dept Safety Food Chain, Max Dohrn Str 8-10, D-10589 Berlin, Germany; [Maedge, Inga; Winterhalter, Peter] Tech Univ Carolo Wilhelmina Braunschweig, Inst Food Chem, Braunschweig, Germany published Pyrrolizidine alkaloid profiling of four Boraginaceae species from Northern Germany and implications for the analytical scope proposed for monitoring of maximum levels in 2020, Cited 64. The Name is (E)-2-Methylbut-2-enoic acid. Through research, I have a further understanding and discovery of 80-59-1.

Pyrrolizidine alkaloids (PAs) and their corresponding N-oxides (PANOs) have been determined in food and feed at levels relevant for consumer health. More than 660 different PAs have been detected, but few are available as reference substances for analytical demands. In the context of the European legislation on maximum levels of PAs in food products, a defined analytical scope of 21 PAs for determination has been suggested. An expansion of the scope from 21 to 35 PAs, including 14 structural isomers, is currently under discussion. In the present study, a target screening method was established for a comprehensive characterisation of PA profiles of the species Echium vulgare, Heliotropium europaeum, Cynoglossum officinale and Symphytum spp. to assess whether an expansion of the analytical scope is required to quantitatively cover the total PA contents of Boraginaceae species. The scope of the method comprised known and unknown PAs previously screened and confirmed in the respective plant extracts. A total of 176 PAs and PANOs were detected. The toxic 1,2-unsaturated PAs represent the predominant PA type with about 98% of the mean total content. This PA profiling demonstrates that an expansion of the scope from 21 to 35 PAs is required to adequately cover the mean total PA contents of Cynoglossum officinale and H. europaeum, whereas in the case of Symphytum spp. and Echium vulgare an expansion would not be necessary.

About (E)-2-Methylbut-2-enoic acid, If you have any questions, you can contact Madge, I; Gehling, M; Schone, C; Winterhalter, P; These, A or concate me.. HPLC of Formula: C5H8O2

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