Imino-ene reaction of N-tosyl arylaldimines with α-methylstyrene: application in the synthesis of important amines
作者:Manoj K. Pandey、Alakesh Bisai、Ankur Pandey、Vinod K. Singh
DOI:10.1016/j.tetlet.2005.05.073
日期:2005.7
for the imino-ene reaction of N-tosylarylaldimines with α-methylstyrene. A wide variety of N-tosylarylaldimines were used to give homoallylamines in good to excellent yields under mild conditions. The imino-ene adduct was converted into a β-amino ketone. The synthesis of a 2,4-substituted pyrrolidine and a piperidine was also achieved from the imino-ene product via a Mitsunobu reaction and a Grubbs cyclization
三氟甲磺酸铜(II)或锡(II)与TMSC1结合可有效激活C-H键,用于N-甲苯磺酰基芳基亚胺与α-甲基苯乙烯的亚氨基反应。在温和的条件下,各种各样的N-甲苯磺酰基芳基亚胺被用来以高至优异的产率得到高烯丙基胺。亚氨基烯加合物被转化为β-氨基酮。由亚氨基-烯产物还分别通过Mitsunobu反应和Grubbs环化反应来合成2,4-取代的吡咯烷和哌啶。