Ruthenium-catalyzed Hydrocarbamoylative Cyclization of 1,6-Diynes with Formamides
作者:Shota Mori、Masatoshi Shibuya、Yoshihiko Yamamoto
DOI:10.1246/cl.160961
日期:2017.2.5
The ruthenium-catalyzed hydrocarbamoylative cyclization of 1,6-diynes with formamides afforded exocyclic-diene-type α,β,γ,δ-unsaturated amides with 100% stereoselectivity. A plausible mechanism involving ruthenium hydride species is proposed to explain the experimental results. Some control experiments, performed using DMF-d7 and/or D2O, corroborate the proposed mechanism.
钌催化的 1,6-二炔与甲酰胺的烃甲酰化环化得到具有 100% 立体选择性的环外二烯型 α,β,γ,δ-不饱和酰胺。提出了一种涉及氢化钌物质的合理机制来解释实验结果。一些使用 DMF-d7 和/或 D2O 进行的控制实验证实了所提出的机制。