反应详情

Following the procedure of Example 1, Part G, but substituting an appropriate quantity of 4-(p-t-butylphenyl)-4-isocyanatocyclohexanone ethylene ketal for 4-p-chlorophenyl-4-isocyanatocyclohexanone there is obtained 4-(p-t-butylphenyl)-4-methylaminocyclohexanone ethylene ketal which as a m.p. 118.5°-121° C. (94% yield).