Catalytic, Nucleophilic Allylation of Aldehydes with 2-Substituted Allylic Acetates: Carbon–Carbon Bond Formation Driven by the Water–Gas Shift Reaction
作者:Scott E. Denmark、Zachery D. Matesich
DOI:10.1021/jo501004j
日期:2014.7.3
The ruthenium-catalyzed allylation of aldehydes with allylic acetates has been expanded to incorporate substituents at the 2-position of the allylic components. Allylic acetates bearing a variety of substituents (CO2-t-Bu, COMe, Ph, CH(OEt)2, and Me) undergo high-yielding additions with aromatic, α,β-unsaturated, and aliphatic aldehydes. The conditions of the reaction were found to be mild (75 °C,
醛与烯丙基乙酸酯的钌催化的烯丙基化已经扩大,以在烯丙基组分的2-位引入取代基。带有多种取代基(CO 2 - t- Bu,COMe,Ph,CH(OEt)2和Me)的烯丙基乙酸酯会与芳香族,α,β-不饱和和脂肪族醛类进行高产率的加成反应。发现反应条件温和(75°C,24–48 h),仅需在40–80 psi的CO下使用2-3 mol%的十二碳三钌催化剂。水和烯丙基的化学计量比发现使用的乙酸盐对反应效率至关重要。