An efficient route to the synthesis of novel zwitterionic pyridinium-cyanopropenides with 3-heteroaryl-substituted trimethinium salts. Issue 25 (30th May 2022)

• Record Type: Journal Article
• Authors: Samani, Ziba Rafiee; Mehranpour, Abdolmohammad
• Is Part Of: RSC advances. Volume 12:Issue 25(2022)
• Page Start: 16229
• Page End: 16234
• Publication Date: 2022-05-30
• Subjects: Chemistry -- Periodicals; 540.5
• DOI: 10.1039/d2ra02465a
• Languages: English
• ISSNs: 2046-2069

Abstract

Abstract : Synthesis of new zwitterionic derivatives via the reaction of 2-substituted 1, 3-bis(dimethylamino)-trimethinium salts with malononitrile or ethyl cyanoacetate in the presence of Et3 N in ethanol at reflux. 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 in ethanol at reflux. The molecular structures of the new compounds were confirmed by IR, UV/vis, mass, 1 H, and 13 C NMR spectra as well as by elemental analyses.