作者:Wolfgang Oppolzer、Boris M. Seletsky、Gérald Bernardinelli
DOI:10.1016/s0040-4039(00)73222-9
日期:1994.5
undergoes efficient, endo-selective and highly diastereoface controlled [4+2]-additions to cyclopentadiene, isoprene, (E)-piperylene and the 2-silyloxydienes 10 and 12. The resulting crystalline cycloadducts are smoothly reduced with LiAlH4 providing the recovered auxiliary and the corresponding enantiomerically pure alcohols.
R 2 AlCl配位的N-甲基丙烯酰胺基1c经过高效,内选择性和高度非对映体控制的[4 + 2]加成到环戊二烯,异戊二烯,(E)-亚戊二烯和2-甲硅烷基氧二烯10和12上。用LiAlH 4平滑地还原所得的结晶环加合物,提供了回收的助剂和相应的对映体纯的醇。