Syntheses of (±)- and Enantiomerically Pure (+)-Longifolene and of (±)- and Enantiomerically Pure (+)-Sativene by an Intramolecular<i>de Mayo</i>Reaction
作者:Wolfgang Oppolzer、Thierry Godel
DOI:10.1002/hlca.19840670429
日期:1984.6.20
chloride ((RS)- or (S)-8), the racemic as well as the enantiomerically pure (+)-sesquiterpenes longifolene ((±)- and (+)-1, resp.) and sativene ((±)- and (+)-2, resp.) were synthesized efficiently by a sequence of nine and ten steps, respectively. The key sequence 10 16 3 is the first strategic application of an intramolecular photoaddition/retro-aldolization sequence (intramolecular de Mayo reaction) in
从2-环戊烯酰氯((RS)-或(S)-8)开始,外消旋以及对映体纯的(+)-倍半萜烯Longifolene((±)-和(+)- 1,分别为)和西番莲((±)-和(+)- 2,分别)分别通过九个步骤和十个步骤有效地合成。关键序列10 16 3是有机合成中分子内光加成/逆醛醇缩合序列(分子间的德马约反应)的第一个战略应用。