Tag: M.W=100-150

An article One-Pot Process to Carborano-Coumarin via Catalytic CascadeDehydrogenative Cross-Coupling WOS:000514936900001 published article about CAGE B-H; O-CARBORANES; ORTHO-ARYLATION; BORON CLUSTERS; DRUG DISCOVERY; GAMMA-LACTAMS; BENZOIC-ACIDS; BONDS; RHODIUM; FUNCTIONALIZATION in [Quan, Yangjian; Xie, Zuowei] Chinese Univ Hong Kong, Dept Chem, Shatin, Hong Kong, Peoples R China; Chinese Univ Hong Kong, State Key Lab Synthet Chem, Shatin, Hong Kong, Peoples R China in 2020, Cited 89. The Name is 3-Methylbenzoic acid. Through research, I have a further understanding and discovery of 99-04-7. Formula: C8H8O2

Ir-catalyzed cascade dehydrogenative CH/BH and BH/OH cross-coupling of carboranyl carboxylic acid with readily available benzoic acid has been achieved, leading to the facile synthesis of previously unavailable carborano-coumarin in a simple one-pot process. Two cage B-H, one aryl C-H and one O-H bonds are activated to construct efficiently new B-C and B-O bonds. The cascade cyclization can stop at the first B-H/C-H cross-coupling step by tuning the reaction conditions, resulting in a series of alpha-carboranyl benzoic acid and aryl carborane derivatives. Control experiments indicate that B-H/C-H dehydrocoupling proceeds preferentially over B-H/O-H dehydrocoupling, and both directing groups and oxidants are crucial for this reaction. An iridium(V) intermediate is proposed to be involved in the catalytic cycle.

Formula: C8H8O2. About 3-Methylbenzoic acid, If you have any questions, you can contact Au, YK; Lyu, HR; Quan, YJ; Xie, ZW or concate me.

Reference:
Isothiazole – Wikipedia,
,Isothiazole – ScienceDirect.com

In 2020.0 CHEMCATCHEM published article about CATALYZED H/D EXCHANGE; WEAK-COORDINATION; OXIDASE CATALYSIS; LABELED COMPOUNDS; N-HETEROCYCLES; ACTIVATION; DEUTERIUM; COMPLEXES; DISCOVERY; TRITIUM in [Mueller, Valentin; Ackermann, Lutz] Georg August Univ Gottingen, Inst Organ & Biomol Chem, Tammannstr 2, D-37077 Gottingen, Germany; [Weck, Remo; Derdau, Volker] Sanofi Aventis Deutschland GmbH, R&D, Integrated Drug Discovery, Isotope Chem, Ind Pk Hochst, D-65926 Frankfurt, Germany in 2020.0, Cited 105.0. The Name is 3-Methylbenzoic acid. Through research, I have a further understanding and discovery of 99-04-7. Recommanded Product: 3-Methylbenzoic acid

Well-defined ruthenium(II) biscarboxylate complexes enabled selective ortho-deuteration with weakly-coordinating, synthetically useful carboxylic acid with outstanding levels of isotopic labeling. The robust nature of the catalytic system was reflected by a broad functional group tolerance in an operationally-simple manner, allowing the isotope labeling of challenging pharmaceuticals and bioactive heterocyclic motifs. The synthetic power of our method was highlighted by the selective tritium-labeling of repaglinide, an antidiabetic drug, providing access to defined tritium labeled therapeutics.

About 3-Methylbenzoic acid, If you have any questions, you can contact Muller, V; Weck, R; Derdau, V; Ackermann, L or concate me.. Recommanded Product: 3-Methylbenzoic acid

Reference:
Isothiazole – Wikipedia,
,Isothiazole – ScienceDirect.com

An article Shielding Effect of Micelle for Highly Effective and Selective Monofluorination of Indoles in Water WOS:000477706600022 published article about ELECTROPHILIC FLUORINATION; SONOGASHIRA COUPLINGS; EFFICIENT SYNTHESIS; TRIFLUORINATION; DIFLUORINATION; CATALYSIS; ARYL; PD in [Bora, Pranjal P.; Bihani, Manisha; Handa, Sachin] Univ Louisville, Dept Chem, 2320 S Brook St, Louisville, KY 40292 USA; [Plummer, Scott] Novartis Inst BioMed Res, 250 Massachusetts Ave, Cambridge, MA 02139 USA; [Gallou, Fabrice] Novartis Pharma AG, Basel, Switzerland in 2019, Cited 52. Computed Properties of C8H10O2. The Name is 1,3-Dimethoxybenzene. Through research, I have a further understanding and discovery of 151-10-0

Highly selective direct monofluorination of indoles and arenes was developed through an approach that allows site-specific solubility of substrate and fluorine source in the micelle. This approach was highly selective for a broad range of substrates with excellent functional group tolerance. Differences in binding constant and solubility of indoles and arenes in the micelle allowed the fine-tuning of selectivity. Control experiments suggested a radical pathway and provided insight into the role of micelles of the environmentally benign amphiphile PS-750-M. Dynamic light scattering experiments strongly indicated the site-specific solubility of the substrate and fluorine source. The methodology was successfully adapted to gram scale, and the E-factor established from a recycle study indicated that the process is environmentally responsible and sustainable.

Computed Properties of C8H10O2. About 1,3-Dimethoxybenzene, If you have any questions, you can contact Bora, PP; Bihani, M; Plummer, S; Gallou, F; Handa, S or concate me.

Reference:
Isothiazole – Wikipedia,
,Isothiazole – ScienceDirect.com

SDS of cas: 151-10-0. In 2020 ORG LETT published article about ARYL HALIDES; DIRECT SELENATION; EFFICIENT; FUNCTIONALIZATION; CATALYST; SYSTEM; ELECTROCHEMISTRY; DISELENIDES; ACID in [Wang, Jing-Hao; Lei, Tao; Wu, Hao-Lin; Nan, Xiao-Lei; Li, Xu-Bing; Chen, Bin; Tung, Chen-Ho; Wu, Li-Zhu] Chinese Acad Sci, Tech Inst Phys & Chem, Key Lab Photochem Convers & Optoelect Mat, Beijing 100190, Peoples R China; [Wang, Jing-Hao; Lei, Tao; Wu, Hao-Lin; Nan, Xiao-Lei; Li, Xu-Bing; Chen, Bin; Tung, Chen-Ho; Wu, Li-Zhu] Univ Chinese Acad Sci, Sch Future Technol, Beijing 100049, Peoples R China in 2020, Cited 63. The Name is 1,3-Dimethoxybenzene. Through research, I have a further understanding and discovery of 151-10-0.

Direct C-S bond coupling is an attractive way to construct aryl sulfur ether, a building block for a variety of biological active molecules. Herein, we disclose an effective model for regioselective thiolation of the aromatic C-H bond by thiol activation instead of arene activation. Strikingly, this method has been applied into anisole derivatives that are not available in the arene activation approach to forge a single thioether isomer with high reactivity.

SDS of cas: 151-10-0. About 1,3-Dimethoxybenzene, If you have any questions, you can contact Wang, JH; Lei, T; Wu, HL; Nan, XL; Li, XB; Chen, B; Tung, CH; Wu, LZ or concate me.

Reference:
Isothiazole – Wikipedia,
,Isothiazole – ScienceDirect.com

Quality Control of 1,3-Dimethoxybenzene. Authors Hong, CM; Xu, YJ; Chung, JYL; Schultz, DM; Weisel, M; Varsolona, RJ; Zhong, YL; Purohit, AK; He, CQ; Gauthier, DR; Humphrey, GR; Maloney, KM; Levesque, F; Wang, ZX; Whittaker, AM; Sirota, E; McMullen, JP in AMER CHEMICAL SOC published article about in [Hong, Cynthia M.; Xu, Yingju; Chung, John Y. L.; Schultz, Danielle M.; Weisel, Mark; Varsolona, Richard J.; Zhong, Yong-Li; Purohit, Akasha K.; He, Cyndi Q.; Gauthier, Donald R., Jr.; Humphrey, Guy R.; Maloney, Kevin M.; Levesque, Francois; Wang, Zhixun; Whittaker, Aaron M.; Sirota, Eric; McMullen, Jonathan P.] Merck & Co Inc, Proc Res & Dev, Rahway, NJ 07065 USA in 2021, Cited 51. The Name is 1,3-Dimethoxybenzene. Through research, I have a further understanding and discovery of 151-10-0

We report the practical synthesis of a key fragment of islatravir (MK-8591), a novel nucleoside reverse transcriptase translocation inhibitor (NRTTI) currently under investigation for treatment and pre-exposure prophylaxis (PrEP) against HIV infection. The fragment, the unnatural nucleobase 2-fluoroadenine, is incorporated into MK-8591 via a biocatalytic aldolglycosylation cascade, which imposes stringent requirements for its synthesis and isolation. Presented herein is the development work leading to a practical, scalable route from guanine, featuring a dual fluorination approach to a novel 9-THP-2,6-difluoropurine intermediate that enables a mild, highly selective, direct amination. This one-pot fluorination/amination sequence utilizes a direct isolation to deliver high purity 9-THP-2-fluoroadenine, which features ideal properties with respect to reactivity, solubility, and crystallinity. An acid-catalyzed liberation of 2-fluoroadenine in aqueous buffer delivers the appropriate purity profile to facilitate the enzymatic cascade to access MK-8591.

Quality Control of 1,3-Dimethoxybenzene. About 1,3-Dimethoxybenzene, If you have any questions, you can contact Hong, CM; Xu, YJ; Chung, JYL; Schultz, DM; Weisel, M; Varsolona, RJ; Zhong, YL; Purohit, AK; He, CQ; Gauthier, DR; Humphrey, GR; Maloney, KM; Levesque, F; Wang, ZX; Whittaker, AM; Sirota, E; McMullen, JP or concate me.

Reference:
Isothiazole – Wikipedia,
,Isothiazole – ScienceDirect.com

An article One-Pot Synthesis of Monofluoromethoxy Arenes from Aryl Halides, Arylboronic Acids and Arenes WOS:000507950700005 published article about ALPHA-FLUORINATED ETHERS; TRIFLUOROMETHYL ETHERS; DIFLUOROMETHYL ETHERS; MEDICINAL CHEMISTRY; REACTIVITY; ALCOHOLS; THIOETHERS; REAGENTS; PHARMACEUTICALS; NUCLEOPHILES in [Zhao Xiaochun; Ding Tianqi; Jiang Luqi; Yi Wenbin] Nanjing Univ Sci & Technol, Chem Engn Coll, Nanjing 210094, Peoples R China in 2019, Cited 49. Name: 1,3-Dimethoxybenzene. The Name is 1,3-Dimethoxybenzene. Through research, I have a further understanding and discovery of 151-10-0

Fluorine-containing compounds have been widely used in the fields of pharmaceuticals, agrochemicals and functional materials, mainly due to the well-known fluorine effect of the fluoroalkyl groups on the physical, chemical and biological properties of molecules. Tri- and difluoromethyl ethers play an important role in many medicinally compounds. Among various fluorinated moieties, ORf-containing groups have attracted much more attention very recently owing to the impressive conformational changes and maximal shifts in electron distribution brought by fluorine. The alpha-fluorine substitution of ethers shortens and strengthens the C-O bond and thus improves the in vivo oxidative stability of the ether moiety of a drug. Over the past few decades, there are some reliable ways on accessing trifluoromethyl ethers and difluomethyl ethers. Considering the importance of synthesis of monofluoromethoxy arenes and the substrate limitation (phenols or alcohols) of current state, a method was developed to access monofluoromethoxy arenes from aryl halides, arylboronic acids and arenes via a one-pot synthesis. Phenols can be prepared by the hydroxylation of aryl halides catalyzed by transition-metal complexes. In this work, a new strategy was envisioned a two-step sequence for the conversion of aryl halides to monofluoromethoxy arenes based on the palladium-catalyzed conversion of aryl phenols and in situ conversion of the resulting phenoxides with monofluoromethylating reagents. The investigation began with optimization of the conversion of 1-chloro-4-methoxy-benzene. The approach was achieved by using Pd-2(dba)(3) (2 mol%) as the catalyst under an inert atmosphere, di-tertbuty1(2′,4′,6′-triisopropyl-[1,1′-biphenyl]-2-yl)phosphane (8 mol%) as the ligand, KOH (1 equiv.) as the nucleophile, and 1,4-dioxane/H2O (V : V=5 : 3) as the solvent. Further monofluoromethylation used fluoromethyl iodide (2 equiv.) as the monofluoromethylating reagent and CH3CN as the co-solvent. Finally, the desired product was obtained in 82% yield. Therefore, this method was also applied to drugs, for example, Loratadine could be converted to the corresponding product (2o) in 53% yield and Fenofibrate, reacting to form the monofluoromethoxy arenes (2p) in modest yield. One-pot method to access aryl monofluoromethyl ethers from arylboronic acids and arenes were also under consideration and the yields were objective.

About 1,3-Dimethoxybenzene, If you have any questions, you can contact Zhao, XC; Ding, TQ; Jiang, LQ; Yi, WB or concate me.. Name: 1,3-Dimethoxybenzene

Reference:
Isothiazole – Wikipedia,
,Isothiazole – ScienceDirect.com

An article Synthesis of alpha-Aryl Oxindoles by Friedel-Crafts Alkylation of Arenes WOS:000530092400041 published article about ENANTIOSELECTIVE SYNTHESIS; ALLYLIC ALKYLATION; BRONSTED ACID; ARYLATION; 3-ARYLOXINDOLES; CONSTRUCTION; CATALYSTS; ISATINS; LIGAND in [Rokade, Balaji, V; Guiry, Patrick J.] Univ Coll Dublin UCD, Ctr Synth & Chem Biol CSCB, Synth & Solid State Pharmaceut Ctr SSPC, Sch Chem, Dublin 4, Ireland in 2020, Cited 38. The Name is 1,3-Dimethoxybenzene. Through research, I have a further understanding and discovery of 151-10-0. Name: 1,3-Dimethoxybenzene

alpha-Aryl oxindoles are accessed from isatin via a two-step procedure involving a phospha-Brook rearrangement and a Friedel-Crafts alkylation in a one-pot procedure. The use of 1,1,1,3,3,3-hexafluoro-2-propanol as solvent significantly extended the reaction substrate scope to include relatively less electron-rich arenes including benzene. This new alkylation method is fast and straightforward and allows for the direct introduction of the oxindole moiety onto a range of aromatic compounds including phenols. Additionally, the application of arylated products was shown in decarboxylative asymmetric allylation and protonation.

About 1,3-Dimethoxybenzene, If you have any questions, you can contact Rokade, BV; Guiry, PJ or concate me.. Name: 1,3-Dimethoxybenzene

Reference:
Isothiazole – Wikipedia,
,Isothiazole – ScienceDirect.com

Recommanded Product: 151-10-0. Lu, SY; Chen, WB; Shen, QL in [Lu, Shiyao; Chen, Wenbo] Shanghai Univ Elect Power, Shanghai Key Lab Mat Protect & Adv Mat Elect Powe, Shanghai 200090, Peoples R China; [Shen, Qilong] Chinese Acad Sci, Univ Chinese Acad Sci, Shanghai Inst Organ Chem, Key Lab Organofluorine Chem,Ctr Excellence Mol Sy, Shanghai 200032, Peoples R China published Friedel-Crafts trifluoromethylthiolation of electron-rich (hetero)arenes with trifluoromethylthio-saccharin in 2,2,2-trifluoroethanol (TFE) in 2019, Cited 35. The Name is 1,3-Dimethoxybenzene. Through research, I have a further understanding and discovery of 151-10-0.

A promoter-free Friedel-Crafts trifluoromethylthiolation of electron-rich arenes and heteroarenes with N-trifluoromethylthiosaccharin 5 using 2,2,2-trifluoroethanol (TFE) as the solvent was described. The reactions were conducted at 40 degrees C and a variety of common functional groups were compatible. (C) 2019 Chinese Chemical Society and Institute of Materia Medica, Chinese Academy of Medical Sciences. Published by Elsevier B.V. All rights reserved.

About 1,3-Dimethoxybenzene, If you have any questions, you can contact Lu, SY; Chen, WB; Shen, QL or concate me.. Recommanded Product: 151-10-0

Reference:
Isothiazole – Wikipedia,
,Isothiazole – ScienceDirect.com

Recently I am researching about ATOM TRANSFER OXIDATION; AROMATIC HALIDES; ALKYL; REDUCTIONS; GENERATION; CATALYSIS; ALKENYL; IODIDES, Saw an article supported by the Singapore National Research FoundationNational Research Foundation, Singapore [NRF-NRFI2016-06]; Ministry of Education of SingaporeMinistry of Education, Singapore [MOE2013-T2-2-003, MOE2016-T2-1-032, RG108/16]; A* STAR Individual Research Grant [A1783c0008]; Nanyang Research Award Grant; Nanyang Technological UniversityNanyang Technological University; Guizhou Province First-Class Disciplines Project (Yiliu Xueke Jianshe Xiangmu) [GNYL(2017)008]; Guiyang College of Traditional Chinese Medicine, China; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [21772029, 21472028]; National Key Technologies RD ProgramNational Key Technology R&D Program [2014BAD23B01]; 10 Talent Plan (Shicengci) of Guizhou Province; Guizhou University; Thousand Talent Plan. Computed Properties of C8H10O2. Published in WILEY-V C H VERLAG GMBH in WEINHEIM ,Authors: Ke, J; Wang, HL; Zhou, LJ; Mou, CL; Zhang, JJ; Pan, LT; Chi, YR. The CAS is 151-10-0. Through research, I have a further understanding and discovery of 1,3-Dimethoxybenzene

A catalyst- and metal-free electrochemical hydrodehalogenation of aryl halides is disclosed. Our reaction by a flexible protocol is operated in an undivided cell equipped with an inexpensive graphite rod anode and cathode. Trialkylamines nBu(3)N/Et3N behave as effective reductants and hydrogen atom donors for this electrochemical reductive reaction. Various aryl and heteroaryl bromides worked effectively. The typically less reactive aryl chlorides and fluorides can also be smoothly converted. The utility of our method is demonstrated by detoxification of harmful pesticides and hydrodebromination of a dibrominated biphenyl (analogues of flame-retardants) in gram scale.

About 1,3-Dimethoxybenzene, If you have any questions, you can contact Ke, J; Wang, HL; Zhou, LJ; Mou, CL; Zhang, JJ; Pan, LT; Chi, YR or concate me.. Computed Properties of C8H10O2

Reference:
Isothiazole – Wikipedia,
,Isothiazole – ScienceDirect.com

Recently I am researching about C-H; STEREOSPECIFIC SYNTHESIS; ELECTROPHILIC AMINATION; CATALYZED AMINATION; BONDS, Saw an article supported by the Robert A. Welch FoundationThe Welch Foundation [I-0011]; Dr. Ralph and Marian Falk Medical Research Trust Bank of America, N.A., Trustee; NIHUnited States Department of Health & Human ServicesNational Institutes of Health (NIH) – USA [R01HL139793]. Published in AMER CHEMICAL SOC in WASHINGTON ,Authors: Munnuri, S; Anugu, RR; Falck, JR. The CAS is 151-10-0. Through research, I have a further understanding and discovery of 1,3-Dimethoxybenzene. Formula: C8H10O2

Cu(II)-mediated direct NH2 and NH alkyl aryl aminations and olefin aziridinations are described. These room temperature, one-pot, environmentally friendly procedures replace costly Rh-2 catalysts and, in some instances, display important differences with comparable Rh-2- and Fe-supported reactions.

About 1,3-Dimethoxybenzene, If you have any questions, you can contact Munnuri, S; Anugu, RR; Falck, JR or concate me.. Formula: C8H10O2

Reference:
Isothiazole – Wikipedia,
,Isothiazole – ScienceDirect.com