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One-Pot Four-Component Synthesis of Thieno[2,3-D]Pyrimidin-4-Amines Via Sequential Gewald/Cyclocondensation Reactions Publisher



Adib M1 ; Janatian Ghazvini H1 ; Soheilizad M1 ; Saeedi S1 ; Tajbakhsh M2 ; Amanlou M3
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Source: Helvetica Chimica Acta Published:2015


Abstract

A one-pot four-component synthesis of thieno[2,3-d]pyrimidin-4-amines via sequential Gewald/cyclocondensation reactions is described. 2-Aminothiophene-3-carbonitriles obtained from the Gewald reaction between cyclic ketones, malononitrile, and sulfur underwent a condensation-cyclization reaction with benzonitriles under solvent-free conditions to afford the title compounds in excellent yields. Copyright © 2015 Verlag Helvetica Chimica Acta AG, Zurich.
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