✦ LIBER ✦

Pyrimidine synthesis - A new method

✍ Scribed by Iris Somech; Youval Shvo

Book ID: 102338365
Publisher: Journal of Heterocyclic Chemistry
Year: 1997
Tongue: English
Weight: 192 KB
Volume: 34
Category: Article
ISSN: 0022-152X
DOI: 10.1002/jhet.5570340543

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✦ Synopsis

Abstract

A new one‐step‐method for the synthesis of 2‐phenylpyrimidines of type I was developed by reacting benzotrichloride with various nitriles in the presence of aluminum chloride.

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## Abstract Twelve new 7‐aryl‐3‐cyanopyrazolo[1,5‐__a__]pyrimidines (**3a‐f**) and ethyl 7‐arylpyrazolo[1,5‐__a__]pyrimidine‐3‐carboxylates (**3g‐l**) have been conveniently synthesized by the reaction of enaminones with 5‐amino‐1__H__‐pyrazoles in good yields under microwave irradiation. With one