High-yield synthesis of <i>p</i>-(benzyloxy)calix[6, 7,8]arenes

摘要

The high-yield synthesis of p-(benzyloxy)calix[6,7,8]arenes by bringing caesium hydroxide into contact with p-(benzyloxy)phenol and paraformaldehyde, and composite materials including these p-(benzyloxy)calix[6,7,8]arenes.

主权项

1. A process for the preparation of a compound selected from the group consisting of a mixture comprising p-(benzyloxy)calix[6]arene, p-(benzyloxy)calix[7]arene and p-(benzyloxy)calix[8]arene; a mixture comprising p-(benzyloxy)calix[6]arene and p-(benzyloxy)calix[7]arene; a mixture comprising p-(benzyloxy)calix[7]arene and p-(benzyloxy)calix[8]arene; a mixture comprising p-(benzyloxy)calix[6]arene and p-(benzyloxy)calix[8]arene; p-(benzyloxy)calix[6]arene; p-(benzyloxy)calix[7]arene; and p-(benzyloxy)calix[8]arene, said process comprising:
a stage of bringing caesium hydroxide into contact with p-(benzyloxy)phenol and paraformaldehyde, said caesium hydroxide being at a total concentration of 0.09 equivalent to 0.5 equivalent with respect to said p-(benzyloxy)phenol.