Acetoxy-Substituted Cyclopropane Dicarbonyls as Stable Donor–Acceptor–Acceptor Cyclopropanes
作者:Keith Mead、Yahaira Reyes
DOI:10.1055/s-0034-1379934
日期:——
depending on the nature and position of the aryl-ring substituent. A study of cyclopropanations of oxy-substituted ethenes with ethyl α-aroyl-α-diazoacetates is described. The reaction of ethyl α-aroyl-α-diazoacetates with trimethylsilyl vinyl ether or ethyl vinyl ether gave dihydrofuran products, but when vinyl acetate was used the products were stable cyclopropanes, ethyl 2-acetoxy-1-aroylcyclopropanecarboxylates
摘要 描述了用α-芳酰基-α-重氮乙酸乙酯对氧取代的乙烯进行环丙烷化的研究。α-芳酰基-α-重氮乙酸乙酯与三甲基甲硅烷基乙烯基醚或乙基乙烯基醚的反应生成了二氢呋喃产物,但当使用乙酸乙烯酯时,产物为稳定的环丙烷,即2-乙酰氧基-1-芳酰基环丙烷甲酸乙酯,在16-取决于芳基环取代基的性质和位置,产率为87%。 描述了用α-芳酰基-α-重氮乙酸乙酯对氧取代的乙烯进行环丙烷化的研究。α-芳酰基-α-重氮乙酸乙酯与三甲基甲硅烷基乙烯基醚或乙基乙烯基醚的反应生成了二氢呋喃产物,但当使用乙酸乙烯酯时,产物为稳定的环丙烷,即2-乙酰氧基-1-芳酰基环丙烷甲酸乙酯,在16-取决于芳基环取代基的性质和位置,产率为87%。