An alternative synthesis of (.+-.)-. alpha.-and (.+-.)-. gamma.-lycoranes

B Umezawa, O Hoshino, S Sawaki…

文献索引：Umezawa,B. et al. Journal of Organic Chemistry, 1977 , vol. 42, p. 4272 - 4275

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被引用次数: 32

摘要

(4) Recentlv an accurate kinetic treatment of a ohotoresoiution allowed Rau (1974). et io calculate the g factor, and molar eiiipticlty of a tetraazaspirane. A special case of photoresolution was developed by Nelander and N~ rden~~ by working in an iced matrix. Thus the dithiane itself (which is a stable racemic mixture at 77 K) was resolved for the first time and its chiroptical properties studied at 77 K;(a) R. Blume, H. Rau, and 0. Schuster, J. ...