Asymmetric synthesis of clerodane diterpenoids: total synthesis of (–)-methyl kolavenate
作者:Hideo Iio、Mitsugu Monden、Kimikazu Okada、Takashi Tokoroyama
DOI:10.1039/c39870000358
日期:——
asymmetric synthesis of (8R,9S,10R)-4,8,9-trimethyl-9-vinyl-Δ4-3-octalone, a versatile intermediate for the syntheses of both trans- and cis-neo-clerodane diterpenoids, has been achieved by extension of Ender's asymmetric alkylation, and its utility is exemplified by the total synthesis of (–)-methyl kolavenate, the first example of a clerodane diterpenoid in optically active form.
的不对称合成(8 - [R 9小号,10 - [R)-4,8,9三甲基-9-乙烯基-Δ 4 -3- octalone,一个中间两者的合成通用的反式-和顺-neo-克罗二萜类化合物,是通过扩展Ender的不对称烷基化而获得的,其实用性是通过全合成(-)-甲基高碘酸钾酯(光学活性形式的类聚环戊烷二萜类化合物)来举例说明的。