A Stille cyclisation approach to (−)-periplanone-B: studies in alkene-selective ring-closing metathesis and an improved chromium(II)-mediated synthesis of (E )-alkenylstannanes from aldehydes
作者:David M. Hodgson、Anne M. Foley、Lee T. Boulton、Peter J. Lovell、Graham N. Maw
DOI:10.1039/a905560f
日期:——
A synthesis of the dienone 7 via an efficient intramolecular Stille cross-coupling reaction, an improved chromium(II)-mediated synthesis of (E)-alkenylstannanes from aldehydes using Bu3SnCHI2 in DMF, and a synthesis of the substituted (â)-dienone 25 via ring-closing alkene metathesis to give dihydropyran 22 are described. The synthesis of (â)-dienone 25 constitutes a formal synthesis of (â)-periplanone-B.
Method of manufacturing optically-active periplanone-b
申请人:Japan Tobacco Inc.
公开号:US04980485A1
公开(公告)日:1990-12-25
Optically active periplanone-B is manufactured through oxidizing (1RS, 4S, 5E)-isopropyl-7-methylene-5-cyclodecene-1-ol. The oxidized product is regioselectively enolized and then sulfenylated. The sulfenylated product is oxidized and then subjected to decomposition of the sulfoxide. The decomposed product is epoxidated, and the epoxidated product is converted into an enolate which is then oxidized. The oxidized product is oxidized and then regio- and stereoselectively epoxidated to obtain optically active periplanone-B.
Total synthesis of (−)-periplanone-B, the sex pheromone of the American cockroach
作者:Takeshi Kitahara、Masataka Mori、Koshi Koseki、Kenji Mori
DOI:10.1016/s0040-4039(00)84254-9
日期:1986.1
The total synthesis of (−)-periplanone-B, the sex excitant pheromone of the Americancockroach, Periplaneta americana is accomplished starting from (+)-limonene.