Nitrosation of Methyl 2-Cinnamoylamino-3-dimethylamino-propenoates. Alkyl N-Cinnamoyloxalic Acid Hydroxyimidic Amides, Intermediates in the Synthesis of Alkyl 5-Styryl-1,2,4-oxadiazole-3-carboxylates

Article abstract of DOI:10.1002/jhet.5570340610

Alkyl 2-(substituted cinnamoylamino)-3-dimethylaminopropenoates 5, prepared either from glycine (1) and substituted cinnamoyl chlorides 2 via oxazol-5(4H)-ones 4, or from cinnamoylglycinate with t-butoxy-bisdimethylaminomethane, were transformed by nitros