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L-Proline Catalyzed One-pot Synthesis of Polysubstituted Pyridine System Incorporating Benzothiazole Moiety Sustainable Sonochemical Approach

Overview
Journal RSC Adv
Specialty Chemistry
Date 2022 May 13
PMID 35558590
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Abstract

The efficient, highly convenient synthesis of polysubstituted pyridine derivatives was established the reaction of -(benzothiazol-2-yl)-2-cyanoacetamides with an assortment of arylidene malononitriles and arylidene ethyl cyanoacetates in the presence of l-proline as an efficient organocatalyst for this type of ultrasonic-mediated Michael addition. The mechanistic pathway and factors affecting this reaction were also established. The main characteristics of this procedure are high yields, use of a cost-effective catalyst, and easy work-up and purification.

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