CONTROL OF THE SOLID-STATE PHOTODIMERIZATION OF SOME DERIVATIVES AND ANALOGS OF TRANS-CINNAMIC ACID BY ETHYLENEDIAMINE

被引:62
作者
ITO, Y [1 ]
BORECKA, B [1 ]
OLOVSSON, G [1 ]
TROTTER, J [1 ]
SCHEFFER, JR [1 ]
机构
[1] UNIV BRITISH COLUMBIA,DEPT CHEM,VANCOUVER,BC V6T 1Z1,CANADA
关键词
D O I
10.1016/0040-4039(95)01210-9
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
Some of double salts derived from ethylenediamine (en) and a variety of trans-cinnamic acids and their analogs underwent photodimerization in the solid state, giving predominantly beta-truxinic dimers. X-Ray studies demonstrate that (a) the conformation of en is gauche for the highly photoreactive double salts (o-1b . en and m-1e . en), whereas it is anti for less photoreactive o-1a . en or photoinert 1d . en and (b) for highly reactive o-1b . en and m-1e . en, the monomer acid molecules are arranged in an overlap configuration and a reactive monomer pair is hydrogen-bonded to the same en molecule.
引用
收藏
页码:6087 / 6090
页数:4
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