Palladium-catalyzed insertion of α-diazocarbonyl compounds for the synthesis of cyclic amino esters
作者:Ping-Xin Zhou、Zhao-Zhao Zhou、Zi-Sheng Chen、Yu-Ying Ye、Lian-Biao Zhao、Yan-Fang Yang、Xiao-Feng Xia、Jian-Yi Luo、Yong-Min Liang
DOI:10.1039/c2cc37464a
日期:——
Two different cyclic amino esters are synthesized by palladium-catalyzed cross-coupling reaction of diazoesters with N-substituted-2-iodoanilines. Aryldiazoacetates lead to cyclic α-amino esters with an α-quaternary carbon centre in the presence of CO. Additionally, arylvinyldiazoacetates afford cyclic α,β-unsaturated γ-amino esters.
两种不同的环状氨基酯是通过钯催化的偶联反应合成的,该反应涉及重氮酯与N取代的2-碘苯胺。芳香族重氮乙酸酯在CO的 presence下生成具有α-四价碳中心的环状α-氨基酯。此外,芳香族乙烯基重氮乙酸酯则生成环状α,β-不饱和γ-氨基酯。