In 2020 CHINESE J CHEM 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. Recommanded Product: 99-04-7
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.
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Reference:
Isothiazole – Wikipedia,
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