Transposition d'oxy-cope d'hexene-5 yne-1 ols-3 assistee par le triflate d'argent
作者:Norbert Bluthe、Max Malacria、Jacques Gore
DOI:10.1016/s0040-4039(01)81313-7
日期:1984.1
US4122119A
申请人:——
公开号:US4122119A
公开(公告)日:1978-10-24
US4556742A
申请人:——
公开号:US4556742A
公开(公告)日:1985-12-03
Silver mediated acetylenic oxy cope rearrangement
作者:Norbert Bluthe、Jacques Gore、Max Malacria
DOI:10.1016/s0040-4020(01)87352-x
日期:1986.1
Process for the preparation of .alpha.,.delta.-diethylenic carbonyl
申请人:Rhone-Poulenc Sante
公开号:US04556742A1
公开(公告)日:1985-12-03
.alpha.,.delta.-Diethylenic carbonyl compounds of the formula ##STR1## are made by an oxy-Cope rearrangement of an acetylenic alcohol of the formula ##STR2## in the presence of a catalyst based on a metal of Group Ib of the periodic table or palladium. In the formulae (I) and (II), R.sub.1, R.sub.2, R.sub.3 and R.sub.4, which may be identical or different, each denote a hydrogen atom or a hydrocarbon radical R.sub.2 and R.sub.3 being capable together of forming an alkylene radical (--CH.sub.2 --).sub.n in which one or more carbon atoms may be substituted by one or more alkyl radicals containing 1 to 4 carbon atoms, n is 3 to 20 inclusively and R.sub.5 denotes a hydrogen atom.