Cyano-borrowing reaction: nickel-catalyzed direct conversion of cyanohydrins and aldehydes/ketones to β-cyano ketone
作者:Zhao-Feng Li、Qian Li、Li-Qing Ren、Qing-Hua Li、Yun-Gui Peng、Tang-Lin Liu
DOI:10.1039/c9sc00640k
日期:——
nickel-catalyzed, high atom- and step-economical reaction of cyanohydrins with aldehydes or ketones via an unprecedented “cyano-borrowing reaction” has been developed. Cleavage of the C–CN bond of cyanohydrins followed by aldol condensation and conjugate addition of cyanide to α,β-unsaturated ketones proceeded to deliver a range of racemic β-cyano ketones with good to high yields. The practical procedure
Cyanation of α,β-unsaturated enones by malononitrile in open air under metal-catalyst-free conditions
作者:Shaoxia Lin、Ying Wei、Fushun Liang
DOI:10.1039/c2cc35528k
日期:——
Cyanation of α,β-unsaturated enones by employing malononitrile as the organic cyanation source has been disclosed, which proceeds efficiently at room temperature in open air under metal-catalyst-free conditions.
Scalable Electrocatalytic Intermolecular Acylcyanation and Aminocyanation of Alkenes
作者:Xianqiang Kong、Xiaohui Chen、Yiyi Chen、Zhong-Yan Cao
DOI:10.1021/acs.joc.1c03134
日期:2022.6.3
Electrocatalytic three-component acylcyanation and aminocyanation of simple alkenes have been developed. The protocol features high functional group tolerance and can easily be scaled up. The key to success is to use an electrophilic cyanation source, enabling a broadened use of alkenes to aliphatic ones for acylcyanation.