Iridium-Catalyzed Coupling Reaction of Primary Alcohols with 2-Alkynes Leading to Hydroacylation Products
作者:Shintaro Hatanaka、Yasushi Obora、Yasutaka Ishii
DOI:10.1002/chem.200902646
日期:2010.2.8
A novel iridium‐catalyzed intermolecular coupling reaction of primary alcohols or aldehydes with 2‐alkynes was successfully achieved with high regioselectivity to give hydroacylation products such as α,β‐unsaturated ketones in good yields. The mechanistic investigation of the reaction strongly indicated that the coupling proceeds through the initial formation of homoallylic alcohols followed by dehydrogenation
以高区域选择性成功地完成了伯醇或醛与2-炔烃的新型铱催化分子间偶联反应,从而以高收率得到了加氢酰化产物,例如α,β-不饱和酮。该反应的机理研究强烈表明,偶联过程是通过首先形成均烯丙基醇,然后脱氢成β,γ-不饱和酮,然后进行异构化,从而产生加氢酰化产物而进行的。