Ethyl 5-[(4-Methylphenyl)sulfonyl]-3-Oxopentanoate:
A Bench-Stable Synthon for Ethyl 3-Oxopent-4-enoate (Nazarov’s
Reagent)
作者:Carmela De Risi、Simonetta Benetti、Stefano Carli、Gian Pollini、Augusto Veronese、Vinicio Zanirato
DOI:10.1055/s-0028-1083378
日期:——
p-toluenesulfinate to both acrylonitrile or acrylic acid were efficiently transformed through a two-step, high-yielding sequence into ethyl 5-[(4-methylphenyl)sulfonyl]-3-oxopentanoate, a convenient source for the popular Nazarov's reagent, ethyl 3-oxopent-4-enoate, which could be generated in situ by base-induced β-elimination and used for annulation reactions.
对甲苯亚磺酸钠与丙烯腈或丙烯酸的容易获得的加合物通过两步高产序列有效地转化为 5-[(4-甲基苯基)磺酰基]-3-氧代戊酸乙酯,这是一种方便的来源流行的 Nazarov 试剂,3-oxopent-4-enoate 乙酯,它可以通过碱诱导的 β-消除原位生成并用于环化反应。