1,3-Dibromo-5,5-dimethylhydantoin as a new imidazolidine dehydrogenating agent:: Synthesis of 4,5-dihydro-1H-imidazolium salts

被引：0

作者：

Caterina, MC ^{[1
]}

Figueroa, MA ^{[1
]}

Perillo, IA ^{[1
]}

Salerno, A ^{[1
]}

机构：

[1] Univ Buenos Aires, Fac Pharm & Biochem, Dept Organ Chem, RA-1113 Buenos Aires, DF, Argentina

来源：

HETEROCYCLES | 2006年 / 68卷 / 04期

关键词：

imidazolidine; 1H-4,5-dihydroimidazolium salt; dehydrogenation; 1,3-dibromo-5,5-dimethylhydantoin; heterocycle;

D O I：

暂无

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

A study about the scope of the method for the attainment of 4,5-dihydro-1H-imidazolium salts by dehydrogenation of N,N'-dibenzyl- and N-aryl-N'-benzylimidazolidines is presented. Employed dehydrogenating agents were N-bromoacetamide (NBA), N-bromosuccinimide (NBS), carbon tetrachloride and 1,3-dibromo-5,5-dimethylhydantoin (DBDMH). DBDMH was the choice reagent due to the purity of the attained products, lowest reaction times and highest yields.

引用

页码：701 / 712

页数：12

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