cis-1,2-Bis(phenylsulphonyl)ethylene: a novel, convenient acetylene synthon in Diels–Alder reactions
作者:Ottorino De Lucchi、Giorgio Modena
DOI:10.1039/c39820000914
日期:——
cis-1,2-Bis(phenylsulphonyl)ehtylene (5) is found to be a reactive acetylenesynthon in Diels–Alderreactions since, after cycloaddition to cyclopentadiene, cyclohexadiene, and cyclohepatatriene, and reduction with sodium amalgam, the corresponding bicyclodienes(6)–(8) are obtained in good yields.
Synthesis and structures of pyrroles fused with rigid bicyclic ring systems at β-positions†
作者:Hidemitsu Uno、Satoshi Ito、Mitsuo Wada、Hikaru Watanabe、Miho Nagai、Akiko Hayashi、Takashi Murashima、Noboru Ono
DOI:10.1039/b006584f
日期:——
Pyrroles fused with bicyclo[2.2.2]octene and bicyclo[2.2.1]heptene frameworks are prepared by a modified Barton–Zard method. Structures of these pyrroles and thermal behaviours of the former pyrroles are studied by X-ray and DSC analyses.