Helical Poly(α,β-unsaturated ketone)with Bulky Pendant of Binaphthyl from Anionic Polymerization of(−)-Menthyl(S)-6'-Acrylyl-2'-methyloxy-1,1'-binaphthalene-2-carboxylate  

作　　者：Yehui Chen Liwen Yang Nianfa Yang Zhusheng Yang Jin Zhang 

机构地区：[1]Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education,College of Chemistry,Xiangtan University,Xiangtan,Hunan 411105,China

出　　处：《Chinese Journal of Chemistry》2014年第3期241-247,共7页中国化学（英文版）

基　　金：We gratefully acknowledge the National Natural Science Foundation of China(No.21172186)for finan-cial support of this work.

摘　　要：(−)-Menthyl(S)-6'-acrylyl-2'-methyloxy-1,1'-binaphthalene-2-carboxylate(3)was synthesized and anionically polymerized using n-BuLi as an initiator in toluene.The monomer 3 was levorotatory and had an[α]_(D)^(25)value of−72.4,but its corresponding polymer poly-3 was dextrorotatory and showed an[α]_(D)^(25)value of+162.0.Poly-3 was confirmed to exist in the form of one-handed helical structure in solution by means of comparing the specific optical rotation and the CD spectra with that of 3 and the model compounds such as(−)-menthyl(S)-6'-propionyl-2'-methyloxy-1,1'-binaphthalene-2-carboxylate 2b and(−)-menthyl(S)-6'-heptanoyl-2'-methyloxy-1,1'-binaphthalene-2-carboxylate 2c.This conclusion was also confirmed by the fact that the g-value of poly-3 is about 11 times of that of monomer 3.

关 键 词：chiral α β-unsaturated ketone synthesis anionic polymerization helical polymer 

分 类 号：O63[理学—高分子化学]