作者:H. J. J. Loozen、F. T. L. Brands
DOI:10.1002/recl.19811000909
日期:——
An alternative route to 3-arylpiperidines is described, thereby circumventing traditional Michael addition of substituted phenylacetonitriles to methyl acrylate. Treatment of (3-methoxyphenyl)acetonitrile (2) with the THP ether of 3-bromo-1-propanol, followed by chromic acid oxidation and saponification provided 2-(3-methoxyphenyl)glutaric acid (6). Treatment of the corresponding anhydride 7 with alkyl-
描述了3-芳基哌啶的替代途径,从而避免了将取代的苯基乙腈传统地迈克尔加成至丙烯酸甲酯。用3-溴-1-丙醇的THP醚处理(3-甲氧基苯基)乙腈(2),然后铬酸氧化和皂化得到2-(3-甲氧基苯基)戊二酸(6)。用烷基和芳基烷基胺处理相应的酸酐7提供了酰亚胺8a-c。通过苄氧基,随后的LiAlH甲氧基的置换4还原和催化还原提供1,12和13。