Diastereoisomeric 1,2,5-trimethyl-4-mtolylpiperidin-4-ols and 2,5-dimethyl-4-m-tolylpyridine

The preparation of 1,2,5-trimethyl-4-m-tolypiperidin-4-ol and the isolation of three of its diastereoisomers are described. The passage from this piperidinol to 2,5-dimethyl-4-m-tolylpyridine has been effected. Some derivatives of the latter compound have been obtained.Translated from Khimiya Geterotsiklicheskikh Soedinii, Vol. 6, No. 6, pp. 782–786, June, 1970.