Processes for preparing racemic and anantiomeric 1- (pyridyl) -2-cyclohexylethylamine.

摘要

Invention Patent: B "PROCESSES TO PREPARE 1- (PYRIDYL) - 2-RACEMIC AND ANANTIOMERIC 2-CYCLOEXYLTHYLAMINE" D. This invention relates to the preparation of racemic and anantiomeric 1- (pyridyl) -2-cyclohexylethylamine and, in particular, to the separation of (+) - (S) - or (-) (R) - 1 - (2-pyridyl) -2-cyclohexylethylamine from a racemic mixture of 1- (R, S) - (2-pyridyl) -2-cyclohexylethylamine. In accordance with this invention, the separation of the racemic mixture of 1- (pyridyl-2-cyclohexylethylamine is performed using 3-bromocamphor-8-sulfonic acid (BCSA) .The invention also relates to a process for preparing a racemic mixture of 1 - (pyridyl) -2-cyclohexylethylamine and BCSA free of readily available starting materials.