摘要:
A process for making certain 6-aryl-2-methyl-pyridines, which are useful intermediates in the preparation of biologically active compounds, comprises
(a) subjecting a ketal of 1-hydroxy-1-aryl-5-hexanone to a Jones oxidation to yield a 1-aryl-1,5-hexanedione; or treating the 1-aryl-1-hydroxy-5-ketal-hexane with manganese dioxide in solvent to yield a ketone; and (b) reacting the 1-aryl-1,5-hexanedione or the ketone from (a) with excess hydroxylamine hydrochloride in polar solvent at a temperature of from 50°C to 100°C.
摘要:
A process for making certain 6-aryl-2-methyl-pyridines, which are useful intermediates in the preparation of biologically active compounds, comprises (a) subjecting a ketal of 1-hydroxy-1-aryl-5-hexanone to a Jones oxidation to yield a 1-aryl-1,5-hexanedione; or treating the 1-aryl-1-hydroxy-5-ketal-hexane with manganese dioxide in solvent to yield a ketone; and (b) reacting the 1-aryl-1,5-hexanedione or the ketone from (a) with excess hydroxylamine hydrochloride in polar solvent at a temperature of from 50°C to 100°C.