Intermolecular Hydropyridylation of Unactivated Alkenes
作者:Xiaoshen Ma、Seth B. Herzon
DOI:10.1021/jacs.6b05271
日期:2016.7.20
A general method for the hydropyridylation of unactivatedalkenes is described. The transformation connects metal-mediated hydrogen atom transfer to alkenes and Minisci addition reactions. The reaction proceeds under mild conditions with high site-selectivities and allows for the construction of tertiary and quaternary centers from simple alkene starting materials.
3-(2-Phenethyl)-1-carbamoyloxypyridinium halide is an intermediate for the preparation of the antihistamine azatadine.
3-(2-苯乙基)-1-氨甲酰氧基吡啶盐酸盐是制备抗组胺药物阿扎替定的中间体。
Certain 3-(2-phenethyl)-1-carbamoyloxypyridinium halide intermediates
申请人:SmithKline Beckman Corporation
公开号:US04843163A1
公开(公告)日:1989-06-27
3-(2-Phenethyl)-1-carbamoyloxypyridinium halide is an intermediate for the preparation of the antihistamine azatadine.
3-(2-苯乙基)-1-氨甲酰氧基吡啶盐酸盐是制备抗组胺药物阿扎替定的中间体。
Intermediates for the production of pyridobenzocycloheptene
申请人:SMITHKLINE BECKMAN CORPORATION
公开号:EP0319254A2
公开(公告)日:1989-06-07
Compounds of the formula :
are described in which R₁ and R₂ are C₁₋₄ alkyl or, taken together with the nitrogen atom to which they are attached, pyrolidinyl or piperidinyl; and X is chloro, bromo or iodo. These compounds are intermediates for azatadine.
A process for their preparation and their reaction with an alkali metal cyanide to prepare 3-phenethyl-2-cyano-pyridine are described.