Regioselective Addition Reaction of Lithium Enolates to Thio-Substituted 1,4-Naphthoquinones. Convenient Synthesis of a Naphthofuran-4,9-dione Ring System
作者:Wen-Bing Kang、Seiko Nan’ya、Takeshi Toru、Yoshio Ueno
DOI:10.1246/cl.1988.1415
日期:1988.8.5
The regioselective addition of lithium enolates to thio-substituted 1,4-naphthoquinones gave alkylated 1,4-naphthoquinones via 1,4-addition products. A phenacyl 1,4-naphthoquinone was cyclized to a naphthofuran-4,9-dione ring system.
烯醇锂与硫代取代的 1,4-萘醌的区域选择性加成通过 1,4-加成产物得到烷基化的 1,4-萘醌。苯甲酰基 1,4-萘醌被环化为萘并呋喃-4,9-二酮环系统。