TAM T.-F.; WONG P.-C.; SIU T.-W.; CHAN T.-L., J. ORG. CHEM. <JOCE-AH>, 1976, 41, NO 7, 1289-1291
作者:TAM T.-F.、 WONG P.-C.、 SIU T.-W.、 CHAN T.-L.
DOI:——
日期:——
The Cycloisomerization Reaction of [2.2]Metacyclophanes to 1,2,3,3a,4,5-Hexahydropyrenes. Substituent Effects and Directional Selectivity
作者:Takeshi Yamagishi、Koichi Torizuka、Takeo Sato
DOI:10.1246/bcsj.55.1140
日期:1982.4
Substituent effects and directional selectivity in iodine-induced cycloisomerization reaction of [2.2]metacyclophane were tested using several derivatives of the latter. The reaction was found to be highly selective, and electron-donating groups gave a hexahydropyrene preserving a substituted aryl ring. On the other hand, an alkyl group ortho to the bridge gave a hexahydropyrene with a hydrogenated