SYNTHESIS AND TRANSFORMATIONS OF SULFIDES OF THE THIOPHENE SERIES. 42. SYNTHESIS AND PROPERTIES OF SOME 2-ALKYLTHIO(ALKYLSULFINYL,ALKYLSULFONYL)THIOPHENE-3-CARBONITRILE N-OXIDES

Article abstract of DOI:10.1007/BF00475335

Thiophene-3-carbonitrile N-oxides containing alkylthio, alkylsulfinyl, and alkylsulfonyl groups in the 2-position, which readily undergo 1,3-dipolar cycloaddition to the C=C bond (styrene,N-phenylmaleinimide) to give the corresponding 3,5-disubstituted 2-isoxazolines, were obtained.