N, O-acetals, 2-aminochromanes, chroman-2-ols, 2, 3-dihydro-1H-benzo[f]chromen-3-ol, N-nucleophiles.
Abstract
By the action of acetic acid on 2-morpholinochromanes, a series of chroman-2-ols were obtained in which the hydroxyl group is easily substituted by a primary or secondary amine or benzyl carbamate fragments. In the case of hydrazines and hydrazides of carboxylic acids, the corresponding hydrazones are isolated.
