HETEROCYCLIC BETAINES - NOVEL ETHYLENEIMIDAZOLIUM BENZIMIDAZOLATE INNER SALTS - SYNTHESIS, CHARACTERIZATION, AND TRANSFORMATION INTO 2-VINYL-1H-BENZIMIDAZOLES

被引：12

作者：

ALCALDE, E

GISBERT, M

PEREZGARCIA, L

机构：

来源：

CHEMISTRY LETTERS | 1992年 / 12期

关键词：

D O I：

10.1246/cl.1992.2357

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The first synthesis of the hitherto unknown ethyleneimidazolium benzimidazolate inner salts is described. Their dipolar structure is well reflected on the basis of the H-1 and C-13 NMR parameters. Under neutral and mild conditions the title compounds underwent a type of beta-elimination, affording their corresponding 2-vinyl-1H-benzimidazoles in high yields.

引用

页码：2357 / 2360

页数：4

共 7 条

[1] HETEROCYCLIC BETAINES - AZA ANALOGS OF SESQUIFULVALENE .2. AZOLIUM AZOLATE INNER SALTS - SYNTHESIS, REACTIVITY, AND STRUCTURE OF A 1-1 ADDUCT WITH DIMETHYL ACETYLENEDICARBOXYLATE
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[2] AN EFFICIENT SYNTHESIS OF 2-VINYLBENZIMIDAZOLES FROM 1-(2-BENZIMIDAZOL-2-YLETHYL)PYRIDINIUM SALTS USING AN ANION-EXCHANGE RESIN
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[4] HETEROCYCLIC BETAINES - METHYLENEPYRIDINIUM AND METHYLENEIMIDAZOLIUM AZOLATE INNER SALTS - SYNTHESIS AND STRUCTURE
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[7] KINETICS AND MECHANISMS OF NUCLEOPHILIC DISPLACEMENTS WITH HETEROCYCLES AS LEAVING GROUPS .27. COLLISIONALLY ACTIVATED DISSOCIATION OF N-ALKYLPYRIDINIUM CATIONS TO PYRIDINIUM CATION AND OLEFINS IN THE GAS-PHASE
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