Electron-Deficient 3-Cyano-1-(p-toluenesulfonyl)-1,3-butadienes: Regio- and Stereoselective Synthesis of a Benzene Ring System by Michael-Type Addition-Cyclization with Enamines
Electron-Deficient 3-Cyano-1-(p-toluenesulfonyl)-1,3-butadienes: Regio- and Stereoselective Synthesis of a Benzene Ring System by Michael-Type Addition-Cyclization with Enamines