Rhodium(II)-catalysed cyclisation of diazoketones derived from biphenyl; a new route to benz[a]azulenes and related systems
作者:Helmut Duddeck、Michael Kennedy、M. Anthony McKervey、Fiona M. Twohig
DOI:10.1039/c39880001586
日期:——
Cyclisation of 2-diazoacetylbiphenyl with rhodium(II) acetate or mandelate yields the unstable benz[a]azulen-10(9aH)-one from which benz[a]azulene can be obtained by lithium aluminium hydride reduction; similar reactions with the relateddiazoketones (2)–(5) yield stable benzobicyclotrienones in high yield.
DUDDECK, HELMUT;KENNEDY, MICHAEL;MCKERVEY, M. ANTHONY;TWOHIG, FIONA M., U. CHEM. SOC. CHEM. COMMUN.,(1988) N4, C. 1586-1588
作者:DUDDECK, HELMUT、KENNEDY, MICHAEL、MCKERVEY, M. ANTHONY、TWOHIG, FIONA M.
DOI:——
日期:——
GEMINAL BISPHOSPHONIC ACIDS AND DERIVATIVES AS ANTI-ARTHRITIC AGENTS
申请人:THE UPJOHN COMPANY
公开号:EP0466730B1
公开(公告)日:1993-07-21
US5220021A
申请人:——
公开号:US5220021A
公开(公告)日:1993-06-15
[EN] GEMINAL BISPHOSPHONIC ACIDS AND DERIVATIVES AS ANTI-ARTHRITIC AGENTS
申请人:THE UPJOHN COMPANY
公开号:WO1990012017A1
公开(公告)日:1990-10-18
(EN) Unsaturated geminal phosphonates (III), either as the esters, free acids or salts are useful in the treatment of arthritis.(FR) L'invention concerne des phosponates germinaux insaturés (III) à titre soit d'esters, d'acides ou de sels libres utiles dans le traitement de l'arthrite.