Silica sulfuric acid/NaNO2 as a novel heterogeneous system for production of thionitrites and disulfides under mild conditions

被引：489

作者：

Zolfigol, MA ^{[1
]}

机构：

[1] Bu Ali Sina Univ, Dept Chem, Coll Sci, Hamadan 65174, Iran

来源：

TETRAHEDRON | 2001年 / 57卷 / 46期

关键词：

silica sulfuric acid; thiols; thionitrites; disulfides;

D O I：

10.1016/S0040-4020(01)00960-7

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

Neat chlorosulfonic acid reacts with silica gel to give silica sulfuric acid in which sulfuric acid is immobilized on the surface of silica gel via covalent bond. Thiols can be readily converted to their corresponding thionitrites with a combination of silica sulfuric acid, wet SiO2 and sodium nitrite in dichloromethane at room temperature. Disulfides result from the homolytic cleavage of the sulfur-nitrogen bond of the unstable thionitrites and subsequent coupling of the resultant thiyl radicals. (C) 2001 Elsevier Science Ltd. All rights reserved.

引用

页码：9509 / 9511

页数：3

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