An Expeditious Synthesis of Tetrahydro-1,2,4-triazolo[5,1- b ]quinazolin-8(4 H )-ones and Dihydro-1,2,4-triazolo[1,5- a ]pyrimidines
โ Scribed by Kumari, Kumkum; Raghuvanshi, D. S.; Singh, Krishna Nand
- Book ID
- 115479654
- Publisher
- Taylor and Francis Group
- Year
- 2012
- Tongue
- English
- Weight
- 130 KB
- Volume
- 44
- Category
- Article
- ISSN
- 0030-4948
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## Abstract magnified image The 7โarylโ4,7โdihydro[1,2,4]triazolo[1,5โ__a__]pyrimidines **1a**, **1b**, **1c** can undergo addition of hydrazine to the enamine double bond leading to hydrazine derivatives of tetrahydrotriazolopyrimidines **2a**, **2b**, **2c**; the process is usually accompanied by
## Abstract magnified image A novel series of 2,4โdisubstitutedโ1,2,4โtriazolo[1,5โ__a__]quinazolinโ5(4__H__)โones were prepared by Dimroth rearrangement of their respective isomers namely 1,4โdisubstitutedโ[1,2,4]triazolo[4,3โ__a__]โquinazolinโ5(4__H__)โones. The latter were prepared __via__ new
## Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a โFull Textโ option. The original article is trackable v