Journal of the American Chemical Society

Studies in Stereochemistry. XXXIII. Approaches to Models for 1, 3-Asymmetric Induction

DJ Cram, DR Wilson

文献索引：Cram,D.J.; Wilson,D.R. Journal of the American Chemical Society, 1963 , vol. 85, p. 1249 - 1257

全文：HTML全文

被引用次数: 27

摘要

Starting Materials.-The two alkenes 9-ethylidenefluorene (11) 7 and 9-methylenefluorenes were both unstable to light and air, particularly the latter compound, which is 200 times more susceptible to radical polymerization than styrene. 8 They were prepared and stored in vacuo in a cold dark place. Preparation of bromide XIV from 9-methylfluorene (IX) g is formulated. At O', 9-lithio-9-methylfluorene abstracted a proton from acetone to give IX, ...