Day: October 28, 2021

Pandrala, M; Resendez, A; Malhotra, SV in [Pandrala, Mallesh; Resendez, Angel; Malhotra, Sanjay V.] Stanford Univ, Sch Med, Dept Radiat Oncol, Palo Alto, CA 94304 USA published Polypyridyl iridium(III) based catalysts for highly chemoselective hydrogenation of aldehydes in 2019.0, Cited 53.0. SDS of cas: 100-83-4. The Name is 3-Hydroxybenzaldehyde. Through research, I have a further understanding and discovery of 100-83-4.

Iridium-catalyzed transfer hydrogenation (TH) of carbonyl compounds using HCOOR (R = H, Na, NH4) as a hydrogen source is a pivotal process as it provides the clean process and is easy to execute. However, the existing highly efficient iridium catalysts work at a narrow pH; thus, does not apply to a wide variety of substrates. Therefore, the development of a new catalyst which works at a broad pH range is essential as it can gain a broader scope of utilization. Here we report highly efficient polypyridyl iridium(III) catalysts, [Ir(tPY)(L)Cl](PF6)(2) (where tpy = 2,2′:6′,2-Terpyridine, L = phen (1,10-Phenanthroline), Me(2)phen (4,7-Di methyl-1,10-phenanthroline), Me(4)phen (3,4,7,8-Tetramethyl-1,10-phenanthroline), Me(2)bpy (4,4′-Dimet hyl-2-2′-dipyridyl)) for the chemoselective reduction of aldehydes to alcohols in aqueous ethanol and sodium formate as the hydride source. The reaction can be carried out efficiently in broad pH ranges, from pH 6 to 11. These catalysts are air stable, easy to prepare using commercially available starting materials, and are highly applicable for a wide range of substrates, such as electron-rich or deficient (hetero)arenes, halogens, phenols, alkoxy, ketones, esters, carboxylic acids, cyano, and nitro groups. Particularly, acid and hydroxy groups containing aldehydes were reduced successfully in basic and acidic reaction conditions, demonstrating the efficiency of the catalyst in a broad pH range with high conversion rates under microwave irradiation. (C) 2019 Elsevier Inc. All rights reserved.

SDS of cas: 100-83-4. About 3-Hydroxybenzaldehyde, If you have any questions, you can contact Pandrala, M; Resendez, A; Malhotra, SV 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 Environmental Sciences & Ecology very interesting. Saw the article Development of a novel scheme for rapid screening for environmental micropollutants in emergency situations (REPE) and its application for comprehensive analysis of tsunami sediments deposited by the great east Japan earthquake published in 2019.0. COA of Formula: C7H8O, Reprint Addresses Ueno, D (corresponding author), Saga Univ, Grad Sch Agr, Honjo 1, Saga 8400027, Japan.. The CAS is 100-51-6. Through research, I have a further understanding and discovery of Benzyl Alcohol

The tsunami triggered by the Great East Japan Earthquake of March 2011, the strongest quake ever recorded in Japan, deposited tsunami sediments along the coastline of the affected area. Because the sediments contained a wide variety of hazardous chemicals, including organic micropollutants, a method for rapidly evaluating the environmental and human health risks of such chemicals is necessary. For this purpose, we propose a novel three-step scheme designated rapid screening for environmental micropollutants in emergency situations (REPE). In the first step, samples are subjected to target screening analysis using an automated identification and quantification system (TSA-AIQS) involving gas chromatography mass spectrometry (GC-MS). In the second step, the chemicals detected by TSA-AIQS analysis are quantified precisely by conventional target analysis. The third step is risk assessment of the target chemicals. TSA-AIQS analysis of the tsunami sediments detected 63 substances, including polycyclic aromatic hydrocarbons (both native and alkylated PAHs) at high concentrations. These PAHs were precisely quantified by target analysis, and the concentrations were used to assess the health risks posed by oral intake, which were found to be negligible. Our results suggest that the REPE scheme will be useful for rapid, comprehensive screening and risk assessment in emergency situations. (C) 2019 Elsevier Ltd. All rights reserved.

About Benzyl Alcohol, If you have any questions, you can contact Matsuo, Y; Miyawaki, T; Kadokami, K; Nakai, K; Tatsuta, N; Nakata, H; Matsumura, T; Nagasaka, H; Nakamura, M; Sato, K; Tobo, K; Kakimoto, R; Someya, T; Ueno, D or concate me.. 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

Liu, Q; Tang, YR; Yang, X; Wei, M; Zhang, MX in [Liu, Qin; Tang, Yuran; Yang, Xue; Wei, Min; Zhang, Mingxiao] Southwest Univ, Coll Chem & Chem Engn, Chongqing 400715, Peoples R China published An Ultra-Low Detection Limit Glucose Sensor Based on Reduced Graphene Oxide-Concave Tetrahedral Pd NCs@CuO Composite in 2019.0, Cited 49.0. Recommanded Product: Benzyl Alcohol. The Name is Benzyl Alcohol. Through research, I have a further understanding and discovery of 100-51-6.

Reduced graphene oxide-nanocrystals has attracted considerable attention since it has great potential due to its great chemical activity, high mechanical stability and excellent electrical properties. But the synthesis of reduced graphene oxide-nanocrystals still faces challenges, for example introduce of RGO would contribute to change the morphology of nanocrystals. To address the challenge, we designed a simple method to prepare the common composite material and it was successfully adopted to fabricate glucose sensor with higher catalytic activity. Under the optimal conditions, the experimental results indicated that RGO-Pd NCs@CuO/GC electrode showed excellent electrocatalysis for glucose oxidation with a lower detection limit of 10 nM. This sensor was of excellent stability and sensitivity. This study not only provides a new sensor for selective and reliable detection of glucose but also offers a common and facile strategy for syntheses of nanocrystals supported on reduced graphene oxide. (c) 2019 The Electrochemical Society.

About Benzyl Alcohol, If you have any questions, you can contact Liu, Q; Tang, YR; Yang, X; Wei, M; Zhang, MX or concate me.. Recommanded Product: 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

Quality Control of 3-Hydroxybenzaldehyde. In 2019.0 EUR J MED CHEM published article about FATTY-ACID SYNTHASE; EPIGALLOCATECHIN GALLATE; NATURAL INHIBITOR; OVEREXPRESSION; POLYPHENOLS; ACTIVATION; APOPTOSIS; PATHWAY; KINASE; GROWTH in [Tan, Yu-Jia; Tee, Sheng-Yang; Lam, Yulin] Natl Univ Singapore, Dept Chem, 3 Sci Dr 3, Singapore 117543, Singapore; [Tan, Yu-Jia; Teo, Jun -Ting] Yong Loo Lin Sch Med, Canc Sci Inst Singapore, 14 Med Dr, Singapore 117599, Singapore; [Xi, Yu; Go, Mei-Lin] Natl Univ Singapore, Dept Pharm, 18 Sci Dr 4, Singapore 117543, Singapore in 2019.0, Cited 55.0. The Name is 3-Hydroxybenzaldehyde. Through research, I have a further understanding and discovery of 100-83-4.

Fatty acid synthase (FASN) is a lipogenic enzyme that is selectively upregulated in malignant cells. There is growing consensus on the oncogenicity of FASN-driven lipogenesis and the potential of FASN as a druggable target in cancer. Here, we report the synthesis and FASN inhibitory activities of two novel galloyl esters of trans-stilbene EC1 and EC5. Inhibition of FASN was accompanied by a loss in AKT activation and profound apoptosis in several non-small cell lung cancer (NSCLC) cells at the growth inhibitory concentrations of EC1 and EC5. Both FASN and phospho-AKT levels were concurrently downregulated. However, addition of a lipid concentrate to the treated cells reinstated cell viability and reversed the loss of FASN and AKT protein levels, thus recapitulating the causal relationship between FASN inhibition and the loss in cell viability. (C) 2019 Elsevier Masson SAS. All rights reserved.

About 3-Hydroxybenzaldehyde, If you have any questions, you can contact Tan, YJ; Ali, A; Tee, SY; Teo, JT; Xi, Y; Go, ML; Lam, YL or concate me.. Quality Control of 3-Hydroxybenzaldehyde

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 Materials Science very interesting. Saw the article Amphiphilic phthalocyanines in polymeric micelles: a supramolecular approach toward efficient third-generation photosensitizers published in 2020.0. Recommanded Product: 100-51-6, Reprint Addresses de la Escosura, A; Torres, T (corresponding author), Univ Autonoma Madrid, Organ Chem Dept, E-28049 Madrid, Spain.; van Nostrum, CF (corresponding author), Univ Utrecht, UIPS, Dept Pharmaceut, NL-3508 TB Utrecht, Netherlands.; de la Escosura, A; Torres, T (corresponding author), Inst Adv Res Chem Sci IAdChem, Madrid 28049, Spain.; Torres, T (corresponding author), IMDEA Nanasience, Ciudad Univ Cantoblanco, Madrid 28049, Spain.. The CAS is 100-51-6. Through research, I have a further understanding and discovery of Benzyl Alcohol

In this paper we describe a straightforward supramolecular strategy to encapsulate silicon phthalocyanine (SiPc) photosensitizers (PS) in polymeric micelles made of poly(epsilon-caprolactone)-b-methoxypoly(ethylene glycol) (PCL-PEG) block copolymers. While PCL-PEG micelles are promising nanocarriers based on their biocompatibility and biodegradability, the design of our new PS favors their encapsulation. In particular, they combine two axial benzoyl substituents, each of them carrying either three hydrophilic methoxy(triethylenoxy) chains (1), three hydrophobic dodecyloxy chains (3), or both kinds of chains (2). The SiPc derivatives 1 and 2 are therefore amphiphilic, with the SiPc unit contributing to the hydrophobic core, while lipophilicity increases along the series, making it possible to correlate the loading efficacy in PCL-PEG micelles with the hydrophobic/hydrophilic balance of the PS structure. This has led to a new kind of third-generation nano-PS that efficiently photogenerates O-1(2), while preliminary in vitro experiments demonstrate an excellent cellular uptake and a promising PDT activity.

Recommanded Product: 100-51-6. About Benzyl Alcohol, If you have any questions, you can contact Setaro, F; Wennink, JWH; Makinen, PI; Holappa, L; Trohopoulos, PN; Yla-Herttuala, S; van Nostrum, CF; de la Escosura, A; Torres, 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

Zenkov, IS; Abel, AS; Averin, AD; Butov, GM; Beletskaya, IP in [Zenkov, I. S.; Abel, A. S.; Averin, A. D.; Beletskaya, I. P.] Lomonosov Moscow State Univ, Dept Chem, 3 Build,1 Leninskie Gory, Moscow 119991, Russia; [Averin, A. D.; Beletskaya, I. P.] Russian Acad Sci, Frumkin Inst Phys Chem & Electrochem, 4 Build,31 Leninsky Prosp, Moscow 119991, Russia; [Butov, G. M.] Volgograd State Tech Univ, Volzhsky Polytech Inst Branch, 42a Ul Engelsa, Volzhskii 404121, Russia published Phosphine-catalyzed [3+2] cycloaddition of Morita-Baylis-Hillman carbonates to isothiocyanates in the synthesis of adamantane-containing trisubstituted aminothiophenes in 2021, Cited 33. Name: 4-Methoxybenzaldehyde. The Name is 4-Methoxybenzaldehyde. Through research, I have a further understanding and discovery of 123-11-5.

An addition of the Morita-Baylis-Hillman (MBH) carbonates to adamantane-containing isothiocyanates was studied. The MBH carbonates react with 1-(4-isothiocyanatophenyl)-adamantane in the presence of triphenylphosphine to give 5-aryl-substituted adamantane-containing 2-amino-4-methoxycarbonylthiophenes in 31-59% yields, while 1- and 2-isothio-cyanatoadamantanes were found unreactive in this reaction.

Name: 4-Methoxybenzaldehyde. About 4-Methoxybenzaldehyde, If you have any questions, you can contact Zenkov, IS; Abel, AS; Averin, AD; Butov, GM; Beletskaya, IP 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 Novel Pyrazoloquinolin-2-ones: Design, synthesis, docking studies, and biological evaluation as antiproliferative EGFR-TK inhibitors WOS:000479184600037 published article about FACTOR RECEPTOR KINASE; SUBSTITUTED QUINOLINONES; PYRAZOLE DERIVATIVES; POTENTIAL ANTICANCER; ERLOTINIB; CANCER; CRIZOTINIB; CHEMISTRY; ASSAY in [Elbastawesy, Mohammed A., I; Ramadan, Mohamed] Al Azhar Univ, Fac Pharm, Dept Pharmaceut Organ Chem, Assiut 71524, Egypt; [Aly, Ashraf A.] Menia Univ, Fac Sci, Dept Chem, Al Minya 61519, Egypt; [Elshaier, Yaseen A. M. M.] Univ Sadat City, Fac Pharm, Dept Organ & Med Chem, Menoufia 32958, Egypt; [Youssif, Bahaa G. M.] Assiut Univ, Fac Pharm, Dept Pharmaceut Organ Chem, Assiut 71526, Egypt; [Brown, Alan B.] Florida Inst Technol, Program Chem, Melbourne, FL 32901 USA; [Abuo-Rahma, Gamal El-Din A.] Menia Univ, Fac Pharm, Dept Med Chem, Al Minya 61519, Egypt in 2019, Cited 50. The Name is 4-Hydroxyquinolin-2(1H)-one. Through research, I have a further understanding and discovery of 86-95-3. Safety of 4-Hydroxyquinolin-2(1H)-one

Two new series of diethyl 2-[2-(substituted-2-oxo-1,2-dihydroquinolin-4-yl)hydrazono]-succinates 6a-g and 1-(2-oxo-1,2-dihydroquinolin-4-yl)-1H-pyrazoles 7a-f have been designed and synthesized. The structures of the synthesized compounds were proved by IR, mass, NMR (2D) spectra and elemental analyses. The target compounds were evaluated for their in vitro cytotoxic activity against 60 cancer cell lines according to NCI protocol. Consequently, seven compounds were further examined against the most sensitive cell lines, leukemia CCRFCEM, and MOLT-4. 5-Amino-1-(6-bromo-2-oxo-1,2-dihydroquinolin-4-yl)-1H-pyrazole-3,4-dicarbonitrile (7f) was the most active product, with IC50= 1.35 uM and 2.42 uM against MOLT-4 and CCRF-CEM, respectively. Also, it showed a remarkable inhibitory activity compared to erlotinib on the EGFR TK with IC50 = 247.14 nM and 208.42 nM, respectively. Cell cycle analysis of MOLT-4 cells treated with 7f showed cell cycle arrest at G2/M phase (supported by Caspases, BAX and Bcl-2 studies) with a significant pro-apoptotic activity as indicated by annexin V-FITC staining. Moreover, the docking study indicated that both the pyrazole moiety and the quinolin-2-one ring showed good fitting into EGFR (PDB code: 1M17). In order to interpret SAR of the designed compounds, and provide a basis for further optimization, molecular docking of the synthesized compounds to known EGFR inhibitors was performed. The study illustrated the effect of several factors on the compounds’ activity.

Safety of 4-Hydroxyquinolin-2(1H)-one. About 4-Hydroxyquinolin-2(1H)-one, If you have any questions, you can contact Elbastawesy, MAI; Aly, AA; Ramadan, M; Elshaier, YAMM; Youssif, BGM; Brown, AB; Abuo-Rahma, GEDA 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

Recommanded Product: 150-76-5. Authors Yabuta, T; Hayashi, M; Matsubara, R in AMER CHEMICAL SOC published article about in [Yabuta, Tatsushi; Hayashi, Masahiko; Matsubara, Ryosuke] Kobe Univ, Grad Sch Sci, Dept Chem, Kobe, Hyogo 6578501, Japan in 2021, Cited 43. The Name is Mequinol. Through research, I have a further understanding and discovery of 150-76-5

Methods to activate the relatively stable ether C-O bonds and convert them to other functional groups are desirable. One-electron reduction of ethers is a potentially promising route to cleave the C-O bond. However, owing to the highly negative redox potential of alkyl aryl ethers (E-red < -2.6 V vs SCE), this mode of ether C-O bond activation is challenging. Herein, we report the visible-light-induced photocatalytic cleavage of the alkyl aryl ether C-O bond using a carbazole-based organic photocatalyst (PC). Both benzylic and non-benzylic aryl ethers underwent C-O bond cleavage to form the corresponding phenol products. Addition of Cs2CO3 was beneficial, especially in reactions using a N-H carbazole PC. The reaction was proposed to occur via single-electron transfer (SET) from the excited-state carbazole to the substrate ether. Interaction of the N-H carbazole PC with Cs2CO3 via hydrogen bonding exists, which enables a deprotonation-assisted electron-transfer mechanism to operate. In addition, the Lewis acidic Cs cation interacts with the substrate alkyl aryl ether to activate it as an electron acceptor. The high reducing ability of the carbazole combined with the beneficial effects of Cs2CO3 made this otherwise formidable SET event possible. Recommanded Product: 150-76-5. About Mequinol, If you have any questions, you can contact Yabuta, T; Hayashi, M; Matsubara, R 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

Formula: C7H8O2. Recently I am researching about ELECTRON-TRANSFER; TRAMETES-VERSICOLOR; ASCORBATE OXIDASE; REDOX POTENTIALS; FUNGAL LACCASES; MOLECULAR-BASIS; GUAIACOL; LIGNIN; OXIDATION; BIOSYNTHESIS, Saw an article supported by the FEDEREuropean Commission [RTC-2017-5964-2]; Ministerio de Ciencia, Innovacion y Universidades (Madrid, Spain); Fundacion Seneca (CARM, Murcia, Spain)Fundacion Seneca [20961/PI/18]; Murcia University (Murcia, Spain) [AEIP-15452]. Published in ELSEVIER in AMSTERDAM ,Authors: Manzano-Nicolas, J; Marin-Iniesta, F; Taboada-Rodriguez, A; Garcia-Canovas, F; Tudela-Serrano, J; Munoz-Munoz, JL. The CAS is 150-19-6. Through research, I have a further understanding and discovery of m-Methoxyphenol

We studied the laccase-catalysed oxygenation of methoxyphenolic food ingredients, such as 2-methoxyphenol (guaiacol) and 2,6-dimethoxyphenol (syringol), isomers such as 3- and 4-methoxyphenol, and 2,3-, 3,4- and 3,5-dimethoxyphenol. These methoxyphenolic substrates generate unstable free radicals, which leads to the erroneous determination of steady state rates. The addition of small quantities of ascorbic acid as coupling reagent generates a lag period because it reduces free radicals to methoxyphenols. Measurement of the length of the lag period provides the reliable determination of true steady state rates. We describe the application of this chronometric method to the kinetic characterization of the oxidation of the above methoxyphenolic substrates by Trametes versicolor laccase. (C) 2019 Elsevier B.V. All rights reserved.

Formula: C7H8O2. About m-Methoxyphenol, If you have any questions, you can contact Manzano-Nicolas, J; Marin-Iniesta, F; Taboada-Rodriguez, A; Garcia-Canovas, F; Tudela-Serrano, J; Munoz-Munoz, JL 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: 120-14-9. Authors Duan, SZ; Deng, GG; Zi, YJ; Wu, XM; Tian, X; Liu, ZF; Li, MY; Zhang, HB; Yang, XD; Walsh, PJ in ROYAL SOC CHEMISTRY published article about in [Duan, Shengzu; Deng, Guogang; Zi, Yujin; Wu, Xiaomei; Tian, Xun; Liu, Zhengfen; Zhang, Hongbin; Yang, Xiaodong] Yunnan Univ, Sch Chem Sci & Technol, Yunnan Prov Ctr Res & Dev Nat Prod, Key Lab Med Chem Nat Resource,Minist Educ, Kunming 650091, Yunnan, Peoples R China; [Li, Minyan; Walsh, Patrick J.] Univ Penn, Dept Chem, Penn Merck Lab High Throughput Expt, Roy & Diana Vagelos Labs, 231 South 34th St, Philadelphia, PA 19104 USA in 2021.0, Cited 67.0. The Name is 3,4-Dimethoxybenzaldehyde. Through research, I have a further understanding and discovery of 120-14-9

A unique enantioselective nickel-catalyzed vinylation of 2-azaallyl anions is advanced for the first time. This method affords diverse vinyl aryl methyl amines with high enantioselectivities, which are frequently occurring scaffolds in natural products and medications. This C-H functionalization method can also be extended to the synthesis of enantioenriched 1,3-diamine derivatives by employing suitably elaborated vinyl bromides. Key to the success of this process is the identification of a Ni/chiraphos catalyst system and a less reducing 2-azaallyl anion, all of which favor an anionic vinylation route over a background radical reaction. A telescoped gram scale synthesis and a product derivatization study confirmed the scalability and synthetic potential of this method.

About 3,4-Dimethoxybenzaldehyde, If you have any questions, you can contact Duan, SZ; Deng, GG; Zi, YJ; Wu, XM; Tian, X; Liu, ZF; Li, MY; Zhang, HB; Yang, XD; Walsh, PJ or concate me.. SDS of cas: 120-14-9

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