Silver(i)-catalyzed carboxylation of arylboronic esters with CO2
作者:Xiao Zhang、Wen-Zhen Zhang、Ling-Long Shi、Chun-Xiao Guo、Ling-Ling Zhang、Xiao-Bing Lu
DOI:10.1039/c2cc32045b
日期:——
A variety of arylboronic esters were efficiently carboxylated with CO2 using a simple AgOAc/PPh3 catalyst, affording the corresponding carboxylic acids in good yield. This simple and efficient silver(I) catalytic system showed wide functional group compatibility.
Decarboxylative Benzylation of Aryl and Alkenyl Boronic Esters
作者:Patrick J. Moon、Anis Fahandej‐Sadi、Wenyu Qian、Rylan J. Lundgren
DOI:10.1002/anie.201800829
日期:2018.4.16
The copper‐catalyzed decarboxylative benzylation of aryl and alkenyl boronicesters with electron‐deficient aryl acetates is reported. The oxidative coupling proceeds under mild, aerobic conditions and tolerates a host of potentially reactive electrophilic functional groups that would be problematic with traditional benzylation methods (aryl iodides and bromides, protic heteroatoms, aldehydes, Michael
Cu-Catalyzed cross-coupling reactions of epoxides with organoboron compounds
作者:Xiao-Yu Lu、Chu-Ting Yang、Jing-Hui Liu、Zheng-Qi Zhang、Xi Lu、Xin Lou、Bin Xiao、Yao Fu
DOI:10.1039/c4cc09321f
日期:——
A copper-catalyzed cross-coupling reaction of epoxides with arylboronates is described. This reaction is not limited to aromatic epoxides, because aliphatic epoxides are also suitable substrates. In addition, N-sulfonyl aziridines can be successfully converted into the products. This reaction provides convenientaccess to beta-phenethyl alcohols, which are valuable synthetic intermediates.
作者:Yusuke Makida、Enrico Marelli、Alexandra M. Z. Slawin、Steven P. Nolan
DOI:10.1039/c4cc03650f
日期:——
A nickel/N-heterocyclic carbene (NHC) catalysed carboxylation of aryl-, heteroaryl- and alkenylboronates, affording the corresponding carboxylic acids, has been developed. This transformation proceeds under one atmosphere of CO2 with a broad range of substrates and exhibits good functional group compatibility.
Cu-catalyzed cross-coupling reactions of vinyl epoxide with organoboron compounds: access to homoallylic alcohols
作者:Xiao-Yu Lu、Jin-Song Li、Jin-Yu Wang、Shi-Qun Wang、Yue-Ming Li、Yu-Jing Zhu、Ran Zhou、Wen-Jing Ma
DOI:10.1039/c8ra09048c
日期:——
Copper-catalyzed cross-coupling reactions of vinyl epoxide with arylboronates to obtain aryl-substituted homoallylic alcohols are described. The reaction selectivity was different to that of previously reported vinyl epoxide ring-opening reactions using aryl nucleophiles. The reaction proceeded under mild conditions, affording aryl-substituted homoallylic alcohols with high selectivity and in good