A novel synthetic route to (±)-perhydrogephyrotoxin
作者:Toshiro Ibuka、G.-Namg Chu、Fumio Yoneda
DOI:10.1039/c39840000597
日期:——
Total synthesis of (±)-perhydrogephyrotoxin (3) starting from 1,3-bis (trimethylsiloxy) buta-1,3-diene is presented; an efficient new decarboxylative reduction of γ-carbamoyloxy-α,β-enoate (14) by lithium dibutylcuprate is also presented.
A new stereoselective synthesis of (.+-.)-perhydrogephyrotoxin.
作者:TOSHIRO IBUKA、GIL NAMG CHU
DOI:10.1248/cpb.34.2380
日期:——
A stereoselective synthesis of (±)-perhydorgephyrotoxin (3) starting from 1, 3-bis(trimethyl-siloxy)-1, 3-butadiene and ethyl trans-2-octenoate is described. A crucial step is reductive decarboxylation of the γ-carbamoyloxy-α, β-enoate (6) with lithium dibutylcuprate to yield the β, γ-enoate (40).