Sumnary: N-methyl and other N-alkyl benzimidazoles and benzotriazoles were prepared by 18-crown-6 catalysis involving basic aqueous solutions of the heterocycles and organic solutions of alkyl iodides or bromides. In the course of our work with highly substituted benzimidazoles, we required a mild,
β¦ LIBER β¦
The mechanism of N-alkylation of weak N-H-acids by phase transfer catalysis
β Scribed by Ekehard V. Dehmlow; Rainer Thieser; Hayder Ali Zahalka; Yoel Sasson
- Publisher
- Elsevier Science
- Year
- 1985
- Tongue
- French
- Weight
- 207 KB
- Volume
- 26
- Category
- Article
- ISSN
- 0040-4039
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