RCu.BF3. 3. Conjugate addition to previously unreactive substituted enoate esters and enoic acids
作者:Yoshinori Yamamoto、Kazuhiro Maruyama
DOI:10.1021/ja00478a060
日期:1978.5
Lewis acid mediated reactions of organocopper reagents. Entrainment in the conjugate addition to .alpha.,.beta.-unsaturated ketones, esters, and acids via the RCu.cntdot.BF3 system
Silver-Catalyzed Decarboxylative Alkynylation of Aliphatic Carboxylic Acids in Aqueous Solution
作者:Xuesong Liu、Zhentao Wang、Xiaomin Cheng、Chaozhong Li
DOI:10.1021/ja306638s
日期:2012.9.5
C(sp(3))-C(sp) bondformations are of immense interest in chemistry and material sciences. We report herein a convenient, radical-mediated and catalytic method for C(sp(3))-C(sp) cross-coupling. Thus, with AgNO(3) as the catalyst and K(2)S(2)O(8) as the oxidant, various aliphatic carboxylic acids underwent decarboxylative alkynylation with commercially available ethynylbenziodoxolones in aqueous solution