Asymmetric diels - alder reactions with α-chloronitroso compounds - I. Application of α-chloronitroso epiandrosterone in synthesis
作者:Mahmud Sabuni、Günter Kresze、Heinz Braun
DOI:10.1016/s0040-4039(01)91288-2
日期:1984.1
The Diels - Alder reaction of 1,3-cyclohexadiene (9) with the enantiomerically pure α-chloronitroso compound 8, synthesized from epiandrosterone (7a), gives the adduct 10a with 1-(R),4-(S) configuration in 69 % chemical yield and ⩾95 % enantiomeric excess.
1,3-环己二烯(9)与对映体纯的α-氯亚硝基化合物8(由表雄酮(7a)合成)的Diels-Alder反应在69中得到1-(R),4-(S)构型的加合物10a %的化学收率和约95%的对映体过量。