The Structure and Synthesis of Rishitinol. A Sesquiterpene Alcohol from Diseased Potato Tubers
作者:Nobukatsu Katsui、Akira Matsunaga、Kenji Imaizumi、Tadashi Masamune、Kohei Tomiyama
DOI:10.1246/bcsj.45.2871
日期:1972.9
The structure and configuration of rishitinol (2), isolated from tuber tissues of white potatoes (Solanum tuberlosum × S. demissum) infected by an incompatible race of Phytophtora infestans, were deduced from spectral and chemical data and confirmed by the synthesis of its recemate. 5,8-Dimethyl-1-tetralone-3-carboxylic acid (13) prepared from 2,5-dimethylbenzyl chloride was esterified, reduced, and
Rishitinol (2) 的结构和构型是从被不相容的 Phytophtora infestans 小种感染的白马铃薯 (Solanum tuberlosum × S. demissum) 的块茎组织中分离出来的,从光谱和化学数据中推断出来,并通过其回收物的合成得到证实。由 2,5-二甲基苄基氯制备的 5,8-二甲基-1-四氢萘酮-3-羧酸 (13) 经酯化、还原、脱水得到二氢萘衍生物 (20),再将其转化为氧异丙基衍生物 (21 )。21 的硼氢化反应和过氧化氢氧化得到多组分混合物,从中分离出 dl-rishitinol (25=dl-2) 和异构二醇 (22-24)。