Silica phosphoric acid/NaNO2 as a novel heterogeneous system for the coupling of thiols to their corresponding disulfides

被引：49
作者：
Zolfigol, MA
Shirini, F
Zamani, K
Ghofrani, E
Ebrahimi, S
机构：
[1] Bu Ali Sina Univ, Coll Sci, Chem Dept, Hamadan 65174, Iran
[2] Gilan Univ, Coll Sci, Dept Chem, Rasht, Iran
[3] Arak Univ, Coll Sci, Chem Dept, Arak, Iran
来源：
PHOSPHORUS SULFUR AND SILICON AND THE RELATED ELEMENTS | 2004年 / 179卷 / 11期
关键词：
disulfides; silica chloride; silica phosphoric acid; thiols; thionitrites (S-nitrosothiols);
D O I：
10.1080/10426500490474842
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Silica phosphoric acid was prepared vis reaction of silica chloride (I) and phosphoric acid. Thiols can be readily converted to their corresponding thionitrites with a combination of silica phosphoric acid (II), wet Sio(2), and sodium nitrite in dichloromethane at room temperature. Disulfides result from the homolytic cleavage of the sulfur-nitrogen bond of the unstable thionitrite and subsequent coupling of the resultant thiyl radicals.
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页码：2177 / 2182
页数：6
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