1,3-BIS(PHENYLSULFONYL)BUTADIENES: SYNTHESIS APPLYING KNOEVENAGEL-TYPE CONDENSATION AND MICHAEL-TYPE ADDITION-CYCLIZATION WITH ENAMINES
Knoevenagel-type condensation of 1,3-bis(phenylsulfonyl)propene with aldehydes provided electron-deficient dienes, 1,3-bis(phenylsufonyl)butadiene derivatives, and one of these dienes, 4-phenyl derivative was applied to Michael-type addition with enamines to form six-membered ring systems.