An efficient route to the synthesis of novel zwitterionic pyridinium-cyanopropenides with 3-heteroaryl-substituted trimethinium salts
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DOI: 10.1039/d2ra02465a
Abstract: In this study, eight new zwitterionic derivatives were synthesized using a simple design method from the reaction of various 2-substituted 1,3-bis(dimethylamino)-trimethinium salts with malononitrile or ethyl 2-cyanoacetate in excellent yields in the presence of triethylamine… read more here.
Keywords: trimethinium; novel zwitterionic; trimethinium salts; efficient route ... See more keywords