BENZIL BENZILIC ACID REARRANGEMENT IN CROSS-LINKED MACROMOLECULAR SYSTEMS - EFFECT OF CROSS-LINKING

被引：5

作者：

KURIAKOSE, S ^{[1
]}

PILLAI, VNR ^{[1
]}

机构：

[1] MAHATMA GANDHI UNIV,SCH CHEM SCI,KOTTAYAM 686560,KERALA,INDIA

来源：

POLYMER | 1994年 / 35卷 / 06期

关键词：

BENZILIC ACID; CROSS-LINKING; REARRANGEMENT;

D O I：

10.1016/0032-3861(94)90036-1

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The effect of the molecular character and extent of crosslinking units on polymer-analogous benzil-benzilic acid rearrangement was investigated. A typical hydrophobic styrene-divinylbenzene copolymer and a hydrophilic styrene-tetraethyleneglycol diacrylate copolymer were used as the polymer supports. Supports with crosslink densities varying from 2 to 20% were functionalized. The polymer-bound aldehydes were subjected to crossed benzoin condensation in the presence of benzaldehyde. The benzoin analogues were converted to benzils and then subjected to benzil-benzilic acid rearrangement. The products were characterized by i.r. and C-13 n.m.r. spectroscopy and the extent of rearrangement was determined by chemical methods.

引用

页码：1339 / 1341

页数：3

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