SYNTHESIS AND SOLVATOCHROMIC PROPERTIES OF 5-DICYANOVINYL-AND 5-TRICYANOVINYL-SUBSTITUTED 2-AMINO-THIAZOLES AND 2-AMINO-THIOPHENES

Abstract

Starting from 2-morpholinothiazoles 6 and 2-morpholinothiophenes 7 and following known routes several 5-dicyanovinyl and 5-tricyanovinyl-substituted derivatives 10–13 have been prepared and their solvatochromic properties estimated.

Key Words:

• 2-Amino-5-(2,2-dicyanoethenyl)thiazoles
• 2-Amino-5-(1,2,2-tricyanoethenyl)-thiazoles
• 2-Amino-5-(2,2-dicyanoethenyl)thiophenes
• 2-Amino-5-(1,2,2-tricyanoethenyl)-thiophenes
• Solvatochromism