59773-43-2Relevant articles and documents
N-Bis(methylthio)methylene Derivatives. 5. New Synthesis of 2-Aminoindolizine and Related Compounds via a Formal Cycloaddition Reaction Using N-Bis(ethoxycarbonylmethylthio)methylenephenylsulfonamides
Tominaga, Yoshinori,Ueda, Hiroshi,Ogata, Koichiro,Kohra, Shinya
, p. 209 - 214 (2007/10/02)
Reaction of pyridinium N-ylide 5a with N-bis(ethoxycarbonylmethylthio)(p-substituted-phenyl)sulphonamides 2a,c in the presence of triethylamine as a base in ethanol gave diethyl 2-(p-substituted-phenylsulphonyl)aminoindolizine-1,3-dicarboxylates 9a,b via