Unexpected isomerization of maleic acid to fumaric acid on co-crystallization with 4,4′-bipyridine

被引：41

作者：

Chatterjee, S ^{[1
]}

Pedireddi, VR ^{[1
]}

Rao, CNR ^{[1
]}

机构：

[1] Indian Inst Sci, Jawaharlal Nehru Ctr Adv Sci Res, Chem & Phys Mat Unit, Bangalore 560064, Karnataka, India

来源：

TETRAHEDRON LETTERS | 1998年 / 39卷 / 18期

关键词：

D O I：

10.1016/S0040-4039(98)00313-X

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

Go-crystallization of maleic acid, 1, with 4,4'-bipyridine, 2, in acetone, chloroform, ethylacetate and methanol gives a hydrogen bonded 2:1 adduct of 1 with 2 (monoclinic space group, C2/c, a=24.056(8), b=6.891(2), c=11.474(6)Angstrom, beta=116.10(4)degrees). Co-crystallization in dimethylformamide and dimethylsulfoxide, however, yields a 1:1 adduct of fumaric acid with 2 (triclinic space group P (1) over bar, a=3.875(1), b=8.906(1), c=10.016(1)Angstrom, alpha=109.60(1)degrees, beta=98.64(1)degrees, gamma=96.63(1)degrees). (C) 1998 Elsevier Science Ltd. All rights reserved.

引用

页码：2843 / 2846

页数：4