1,4-二锂四苯基-1,3-丁二烯与卤代烃反应的研究(Ⅱ)——与溴甲烷的反应

高等学校化学学报 ›› 1989, Vol. 10 ›› Issue (7): 713.

1,4-二锂四苯基-1,3-丁二烯与卤代烃反应的研究(Ⅱ)——与溴甲烷的反应

还振威¹, 刘卫国¹, 高振衡¹, 姚心侃², 王宏根²

1. 南开大学化学系;
2. 南开大学中心实验室

收稿日期:1987-09-17 出版日期:1989-07-24 发布日期:1989-07-24
通讯作者: 还振威
基金资助:
中国科学院科学基金

Studies on the Reaction of 1,4-Dilithio-1,2,3,4-Tetraphenyl-1,3-Butadiene with Carbon Halide(Ⅱ)——Reaction with Methyl Bromide

Huan Zhenwei¹, Liu Weiguo¹, Gao Zhenheng¹, Yao Xinkan², Wang Honggen²

1. Department of Chemistry, Nankai University, Tianjin;
2. Central Lab, Nankai University, Tianjin

Received:1987-09-17 Online:1989-07-24 Published:1989-07-24

摘要/Abstract

摘要： 1,4-二锂四苯基-1,3-丁二烯与溴甲烷反应生成顺,顺-和顺,反-2,3,4,5-四苯基-2,4-己二烯。其分子结构和比例由MS、NMR及X射线单晶分析所确定。讨论了产物的生成途径。

关键词: 有机锂, 炕基化, 晶体结均

Abstract: Cis, Cis(Ⅲ) and Cis, trans(Ⅳ) isomers of 2,3,4,5-tetraphenyl-2,4-hexandiene are obtained from the reaction of 1, 4-dilithio-1,2,3, 4-tetraphenyl-1, 3-butadiene (I) with methyl bromide.The reaction path is studied.The molecular structures and the ratio of the isomers were determined by MS, NMRand single crystal X-ray diffraction.1 belongs to the monoclinic, space group P2/n with the unit cell parameters of a= 6.567(3), 6=7.608(2), c=22.078(6)Å, β=94.29 (3) and Z=2.IVbelongs to the monoclinic, space group P2₁/c with the unit cell parameters of a = 12.256(2), 6=9.401(1), c=19.392(2)Å, β=99.35(1) and Z=4.Their final R-factors are 0.074 and 0.035 respectively.

Key words: Organolithium, Alkylation, Crystal structure

TrendMD:

还振威, 刘卫国, 高振衡, 姚心侃, 王宏根. 1,4-二锂四苯基-1,3-丁二烯与卤代烃反应的研究(Ⅱ)——与溴甲烷的反应. 高等学校化学学报, 1989, 10(7): 713.

Huan Zhenwei, Liu Weiguo, Gao Zhenheng, Yao Xinkan, Wang Honggen. Studies on the Reaction of 1,4-Dilithio-1,2,3,4-Tetraphenyl-1,3-Butadiene with Carbon Halide(Ⅱ)——Reaction with Methyl Bromide. Chem. J. Chinese Universities, 1989, 10(7): 713.