Ring-opening metathesis polymerization of 2-(S)-(-)-endo-D-pantolacton-O-yl norbornene-2-carboxylate using a classical ROMP catalyst.: Synthesis and characterization of optically active poly(norbornene-2-carboxylic acid)

被引：0

作者：

Montembault, V ^{[1
]}

Desbrosses, J ^{[1
]}

Campistron, I ^{[1
]}

Reyx, D ^{[1
]}

机构：

[1] Univ Maine, LCOM Chim Polymeres, Unite Chim Organ Mol & Macromol, UMR CNRS, F-72085 Le Mans 9, France

来源：

MACROMOLECULAR CHEMISTRY AND PHYSICS | 2000年 / 201卷 / 09期

关键词：

D O I：

10.1002/1521-3935(20000601)201:9<973::AID-MACP973>3.0.CO;2-C

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

ROMP of the optical pure monomer of the title compound (1) was performed successfully using the classical WCl6/SnMe4 catalyst. Beside the stereoregularity (sigma(c) = 0.70), the C-13 NMR spectrum of the resulting polymer (P-1) evidenced a noticeable directional regularity (B = (HT + TH)/(HH + TT) = 1.6 which can be due to sterically induced regiospecificity in the norbornenyl ring opening during propagation. Significant optical activities were observed for P-1 and for poly(norbornene-2-carboxylic acid) (P-2) resulting from LiOH hydrolysis of P-1. The chirality of P-1 is probably due to the homochiral pantolactonyl side chain and the (S) C-2 backbone carbon.

引用

页码：973 / 979

页数：7