✦ LIBER ✦

One-step synthesis of aminopyrimidines from 5-Oxo-4H-benzopyrans

✍ Scribed by Esperanza Salfrán; Carlos Seoaneb; Margarita Suárez; Yamila Verdecia; Amaury Alvarez; Estael Ochoa; Roberto Martínez-Alvarez; Nazario Martín

Book ID: 102341991
Publisher: Journal of Heterocyclic Chemistry
Year: 2004
Tongue: English
Weight: 227 KB
Volume: 41
Category: Article
ISSN: 0022-152X
DOI: 10.1002/jhet.5570410406

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✦ Synopsis

Abstract

Novel 4‐amino‐6‐aryl‐2‐phenylpyrimidine‐5‐carbonitriles have been prepared in one step procedure from the readily available 4‐aryl‐2‐amino‐3‐cyano‐5,6,7,8‐tetrahydro‐7,7‐dimethyl‐5‐oxo‐4__H__‐benzopyrans. The mass spectroscopy study under EI conditions shows molecular peaks with high intensity corresponding to the loss of benzonitrile from the C2 position of the pyrimidine ring. Semiempirical (AMI and PM3) and ab initio HF/6–31G* calculations reveal a favored distorted geometry where the three rings are not in the same plane.

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## 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, please click on HTML or PDF.

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