## Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable v
Formation of substituted 1,2,4-triazoles and 3h- 1,3,4-benzotriazepines from 5-aryltetrazoles and N-arylbenzimidoyl chlorides (review)
✍ Scribed by S. É. Ivanova; G. I. Koldobskii; V. A. Ostrovskii
- Publisher
- Springer US
- Year
- 1993
- Tongue
- English
- Weight
- 383 KB
- Volume
- 29
- Category
- Article
- ISSN
- 0009-3122
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## Abstract The reaction of thiocarbohydrazide with carboxylic acids at the melting temperature allows an improved preparation of the S‐substituted 4‐amino‐3‐mercapto‐1,2,4‐triazole heterocycles. The crude 4‐amino‐5‐mercapto‐1,2,4‐triazoles react easily with carboxylic acids or carboxylic acid chlo
## Abstract magnified image One‐pot reaction of 3‐aryl‐5‐methyl‐1,3,4‐oxadiazolin‐2‐ones **1a‐g** with ethanolamine yielded the 4‐(2‐hydroxyethyl)‐2‐aryl‐5‐methyl‐2,4‐dihydro‐3__H__‐1,2,4‐triazolin‐3‐ones **2a‐g** which were converted to the azido compounds **6a‐g**. These azides on 1,3‐dipolar cy