Asymmetric Synthesis of (+)-Geranyllinaloisocyanide: Assignment of Absolute Stereochemistry
作者:Yoshiyasu Ichikawa、Yasunori Matsuda、Ken Okumura、Mitsuhiro Nakamura、Toshiya Masuda、Hiyoshizo Kotsuki、Keiji Nakano
DOI:10.1021/ol200308m
日期:2011.5.20
The first nonracemic synthesis of (+)-geranyllinaloisocyanide, starting with (–)-lactic acid methyl ester, has been accomplished by exploiting a [3.3] sigmatropic rearrangement of allyl cyanate. The synthesis enables assignment of the S configuration of the C(3) isocyano substituted, quaternary stereogenic center in natural geranyllinaloisocyanide.
以(-)-乳酸甲酯为原料的(+)-香叶烯基异氰酸酯的第一个非外消旋合成是通过利用[3.3]烯丙基氰酸酯的σ重排而完成的。合成使S配置的C(3)异氰基取代的,季生立体中心在自然geranyllinaloisocyanide中的分配。