Rearrangement reactions of aromadendrane derivatives. The synthesis of (+)-maaliol, starting from natural (+)-aromadendrene-IV
摘要:
Starting from the hydroazulene alpha-ketol 6, which can easily be prepared from (+)-aromadendrene (1), two different routes to hydronaphthalene compounds with a maaliane skeleton have been developed, both proceeding in high overall yield. The first route leads to cis-fused maaliane derivatives; the second one offers access to trans-fused maaliane sesquiterpenes, as demonstrated in this paper in the synthesis of (+)-maaliol (5).
Microbial oxidation of tricyclic sesquiterpenoids containing a dimethylcyclopropane ring
作者:Wolf-Rainer Abraham、Klaus Kieslich、Burkhard Stumpf、Ludger Ernst
DOI:10.1016/s0031-9422(00)97521-6
日期:1992.1
Abstract Calarene was oxidized by Bacillus megaterium and Diplodiagossypina to give allylic calarenols and calarendiols in which either of the geminal methyl groups of the cyclopropane ring was hydroxylated. Globulol was hydroxylated faster and in higher yields than calarene by both strains. In the case of this compound, vicinal diols were formed and, again, either of the geminal methyl groups was
Rearrangement reactions of aromadendrane derivatives. The synthesis of (+)-maaliol, starting from natural (+)-aromadendrene-IV
作者:Harrie J.M. Gijsen、Joannes B.P.A. Wijnberg、Connie van Ravenswaay、Aede de Groot
DOI:10.1016/s0040-4020(01)85012-2
日期:1994.4
Starting from the hydroazulene alpha-ketol 6, which can easily be prepared from (+)-aromadendrene (1), two different routes to hydronaphthalene compounds with a maaliane skeleton have been developed, both proceeding in high overall yield. The first route leads to cis-fused maaliane derivatives; the second one offers access to trans-fused maaliane sesquiterpenes, as demonstrated in this paper in the synthesis of (+)-maaliol (5).