Mannich Compounds of 2-Naphthol Derivatives.

Abstract

The Mannich reactions of some 2-naphthol and its tetrahydro compounds were studied. The Mannich reaction of 2-naphthol (I) by morpholine gave 1-(morpholinomethyl) compound (II), which was also obtained by same reaction of 2-hydroxy-1-naphthoic acid (V). On the other hand, the Mannich reaction of 2-tetralol (XVI) gave 3-(morpholinomethyl) derivative (XV). 2-Hydroxy-3-naphthoic acid (VI) and its tetrahydro compound (IX) were introduced into 1-(morpholinomethyl) derivatives, XVII and XIX, respectively. Some transformations of these Mannich compounds were also studied.