Synthesis and crystal structure of ethyl benzimidazole-2-yl phosphonate

被引：0

作者：

胡方中

邹小毛

杨华铮

翁林红

机构：

[1] State Key Laboratory of Elemento-Organic Chemistry

[2] Institute of Ekmento-Organic Chemistry

[3] Nankai University

[4] Tianjin

[5] China

来源：

ChineseJournalofChemistry | 2000年 / 05期

关键词：

Ethyl benzimidale-2-yl phosphonate; crystal structure; synthesis; mechanism;

D O I：

暂无

中图分类号：

O627.51 [磷有机化合物];

学科分类号：

070303 ; 081704 ;

摘要：

<正> When N-cyanoimido-( O,O-diethyl)phosphonyl/S-methyl thiocarbonate (1) was treated with o-phenylenediamine in the presence of Et3N in ethanol,diethyl benzimidazole-2-yl phos-phonate (2) was obtained and hydrolyzed during the recrys-tallization in MeOH/H2O,generating ethyl benzimidazole-2-yl phosphonate (3).Hie crystal structure of compound 3 was determined by X-ray diffraction method.The crystals belong to monoclinic,space group C2/c,a = 1.78408(18) ,6 = 0.83725(9),c= 1.67401(18) nm,β= 118.997(2),V = 2.1870(4) nm3,Z = 8,Dc=1.374 g/cm3,F(000)=944.The final R and wR are 0.0499 and 0.1436,respectively.The mechanism of the above reaction is also discussed.

引用

页码：781 / 785

页数：5