Diels–Alder reactions of three fused nitrogen-containing bicyclic enones: an efficient method toward novel nitrogen-containing angular tricyclic skeletons
作者:Chi-Min Chau、Kuan-Miao Liu
DOI:10.1039/b806773m
日期:——
The syntheses of three fused bicyclic enones, including 1,2,6,6a-tetrahydro-1-tosyl-cyclopenta[b]pyrrol-3(5H)-one, 1,2,3,6,7,7a-hexahydro-4H-1-tosyl-cyclopenta[b]pyridin-4-one and 1,2,5,6,7,7a-hexahydro-3H-1-tosyl-indol-3-one, via anionic cyclization and Diels-Alder reactions with various dienes to construct novel nitrogen-containing angular tricyclic skeletons are described.
三种稠合双环烯酮的合成,包括1,2,6,6a-四氢-1-甲苯基-环戊基[b]吡咯-3(5H)-one,1,2,3,6,7,7a-六氢-通过阴离子环化和Diels-Alder反应,合成4H-1-甲苯磺酰基-环戊基[b]吡啶-4-酮和1,2,5,6,7,7a-六氢-3H-1-甲苯磺酰基-吲哚-3-酮描述了用各种二烯构筑新颖的含氮角三环骨架的方法。