Study of the asymmetric organocatalyzed [3+2] annulation of cyclopropenone and β-keto ester
作者:Kärt Reitel、Kadri Kriis、Ivar Järving、Tõnis Kanger
DOI:10.1007/s10593-018-2372-1
日期:2018.10
Various asymmetric organocatalytic approaches for the [3+2] annulation of 1,2-diphenylcyclopropen-3-one and ethyl 3-oxo-3-phenylpropanoate have been investigated, resulting in the formation of ethyl 2-(5-oxo-2,3,4-triphenyl-2,5-dihydrofuran-2-yl)acetate in moderate yield and low enantiomeric purity.
研究了各种不对称的有机催化方法,用于[3 + 2]环合1,2-二苯基环丙烯-3-酮和3-氧代-3-苯基丙酸乙酯,导致形成2-(5-oxo-2, 3,4-三苯基-2,5-二氢呋喃-2-基)乙酸盐,产率中等,对映体纯度低。