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ChemInform Abstract: Synthesis of Novel 2-Alkoxy(aralkoxy)-4H-[1,2,4]triazolo[1,5-a]quinazolin-5-ones Starting with Dialkyl-N-cyanoimidocarbonates.

โœ Scribed by Rashad Al-Salahi; Detlef Geffken

Publisher
John Wiley and Sons
Year
2011
Weight
28 KB
Volume
42
Category
Article
ISSN
0931-7597

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Synthesis of novel 2-alkoxy(aralkoxy)-4H
Synthesis of novel 2-alkoxy(aralkoxy)-4H-[1,2,4]triazolo[1,5-a]quinazolin-5-ones starting with dialkyl-N-cyanoimidocarbonates
โœ Rashad Al-Salahi; Detlef Geffken ๐Ÿ“‚ Article ๐Ÿ“… 2011 ๐Ÿ› Journal of Heterocyclic Chemistry ๐ŸŒ English โš– 136 KB ๐Ÿ‘ 1 views

## Abstract A novel series of 2โ€alkoxy(aralkoxy)โ€4__H__โ€[1,2,4]triazolo[1,5โ€__a__]quinazolines were synthesized employing __Nโ€__cyanoimidocarbonates and 2โ€hydrazinobenzoic acid as building blocks. Chemical transformation of the inherent lactam moiety in the targeted 2โ€alkoxy(aralkoxy)[1,2,4]triazol

ChemInform Abstract: Novel Synthesis of
ChemInform Abstract: Novel Synthesis of 2-Alkoxy(aralkoxy)-5-chloro[1,2,4]triazolo[1,5-a]quinazolines and Their Derivatives.
โœ Rashad Al-Salahi; Detlef Geffken ๐Ÿ“‚ Article ๐Ÿ“… 2010 ๐Ÿ› John Wiley and Sons โš– 36 KB ๐Ÿ‘ 1 views

Novel Synthesis of 2-Alkoxy(aralkoxy)-5-chloro[1,2,4]triazolo[1,5-a]quinazolines and Their Derivatives. -Title compounds (I) are obtained by chlorination of triazoloquinazolinones with either oxalyl chloride or phosphorus oxychloride. Replacing the chlorine atom at the 5-position with multifunctiona

A new convenient synthesis of 2,4-disubs
A new convenient synthesis of 2,4-disubstituted-1,2,4-triazolo[1,5-a] quinazolin-5(4H)-ones
โœ Ahmad S. Shawali; Hamdi M. Hassaneen; Nabil Kh. Shurrab ๐Ÿ“‚ Article ๐Ÿ“… 2008 ๐Ÿ› Journal of Heterocyclic Chemistry ๐ŸŒ English โš– 215 KB ๐Ÿ‘ 1 views

## Abstract magnified image A novel series of 2,4โ€disubstitutedโ€1,2,4โ€triazolo[1,5โ€__a__]quinazolinโ€5(4__H__)โ€ones were prepared by Dimroth rearrangement of their respective isomers namely 1,4โ€disubstitutedโ€[1,2,4]triazolo[4,3โ€__a__]โ€quinazolinโ€5(4__H__)โ€ones. The latter were prepared __via__ new