2-Allyl-N-benzyl substituted α-naphthylamines as building blocks in heterocyclic synthesis. New and efficient syntheses of benz[e]naphtho[1,2-b]azepine and naphtho[1,2-b]azepine derivatives
作者:Andrés Felipe Yépez、Alirio Palma、Elena Stashenko、Ali Bahsas、Juan M. Amaro-Luis
DOI:10.1016/j.tetlet.2006.04.160
日期:2006.8
A new series of 13-acetyl-7,12-dihydro-7-ethylbenz[e]naphtho[1,2-b]azepine (4a–d) and 2-aryl-4-hydroxy-2,3,4,5-tetrahydronaphtho[1,2-b]azepine derivatives (6a–d) have been synthesized from N-allyl-N-benzyl substituted α-naphthylamines (1a–d) by utilizing aromatic amino-Claisen rearrangement, intramolecular Friedel–Crafts alkylation and intramolecular dipolar 1,3-cycloaddition nitrone-olefin reactions
一系列新的13-乙酰基-7,12-二氢-7-乙基苯并[ e ]萘[1,2- b ]氮杂(4a – d)和2-芳基-4-羟基-2,3,4,5 N-烯丙基-N-苄基取代的α-萘胺(1a - d)是利用芳香族氨基-克莱森重排,分子内Friedel-Crafts烷基化和N-烯丙基-N-苄基取代的α-萘胺合成的-四氢萘并[1,2- b ] a庚因衍生物(6a - d)。分子内偶极1,3-环加成的硝烯-烯烃反应。