Preparation of Sydnone-4-carboxamide Oximes and Their Conversion into 4-(1,2,4-Oxadiazol-3-yl)sydnones

Autor: Yeh, Mou-Yung, Nonaka, Tsutomu, Goto, Takushi, Hsu, Ming-Ching, Fuchigami, Toshio, Tien, Hsien-Ju
Zdroj: Bulletin of the Chemical Society of Japan; November 1983, Vol. 56 Issue: 11 p3535-3536, 2p
Abstrakt: 3-Arylsydnone-4-carboxamide oximes (2) were prepared from the corresponding 3-arylsydnone-4-carbonitriles and hydroxylamine in high yields. The amide oximes 2reacted with orthoesters to give 3-aryl-4-(1,2,4-oxadiazol-3-yl)sydnones.
Databáze: Supplemental Index