Enols of substituted cyanomalonamides

…, H Yamataka, SC Ammal, Z Rappoport

Index: Basheer, Ahmad; Yamataka, Hiroshi; Ammal, Salai Cheettu; Rappoport, Zvi Journal of Organic Chemistry, 2007 , vol. 72, # 14 p. 5297 - 5312

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Citation Number: 31

Abstract

Twenty open-chain mono-, di-, and trialkyl and aryl-N-substituted cyanomalonamides R2R1NCOCH (CN) CONHR3 were prepared. In solution, signals for both amide and a single enol are mostly observed, despite the potential for E and Z isomeric enols. The equilibrium (K Enol) values between the amides and the enols were determined in different solvents by NMR spectra. They decrease on increasing the polarity of the solvent in the ...