1315451-86-5Relevant academic research and scientific papers
Triarylborane-Catalyzed Alkenylation Reactions of Aryl Esters with Diazo Compounds
Ariafard, Alireza,Babaahmadi, Rasool,Dasgupta, Ayan,Gierlichs, Lukas,Melen, Rebecca L.,Stefkova, Katarína
, p. 15492 - 15496 (2020/07/20)
Herein we report a facile, mild reaction protocol to form carbon–carbon bonds in the absence of transition metal catalysts. We demonstrate the metal-free alkenylation reactions of aryl esters with α-diazoesters to give highly functionalized enyne products. Catalytic amounts of tris(pentafluorophenyl)borane (10–20 mol %) are employed to afford the C=C coupled products (31 examples) in good to excellent yields (36–87 %). DFT studies were used to elucidate the mechanism for this alkenylation reaction.
Fe(II)-Catalyzed alkenylation of benzylic C-H bonds with diazo compounds
Shi, Jiang-Ling,Luo, Qinyu,Yu, Weizhi,Wang, Bo,Shi, Zhang-Jie,Wang, Jianbo
supporting information, p. 4047 - 4050 (2019/04/10)
We report herein an alkenylation of benzylic C(sp3)-H bonds with diazo compounds via carbon cation intermediates with DDQ as the oxidant in the presence of a catalytic amount of Fe(ii). Diphenylmethane, toluene, benzyl methyl sulfide and their derivatives could be applied as substrates to afford the tetra-substituted olefin products, which may serve as useful building blocks in organic synthesis.
Aerobic, Cu-catalyzed desulfitative C-C bond-forming reaction of ketene dithioacetals/vinylogous thioesters and arylboronic acids
Dong, Ying,Wang, Mang,Liu, Jun,Ma, Wei,Liu, Qun
, p. 7380 - 7382 (2011/08/05)
A new Cu-catalyzed thioorganic-boronic acid desulfitative C-C bond-forming reaction involving ketene dithioacetals/ vinylogous thioesters is reported to proceed without the assistance of ligating S-pendant. Vinylogous thiolesters and tetrasubstituted olefins were prepared by this reaction in which Cu catalyst plays a dual role under aerobic conditions.
