Calixarene derivatives and process for the preparation thereof

Details Calixarene derivatives and process for the preparation thereof Calixarene derivatives and process for the preparation thereof

1990-12-14

1993-07-27

Ivy, C. Warren

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D31300

Patent

active

052311961

ABSTRACT:
The present invention relates to an improvement in the process for preparing a calixarene derivative in which the rotation of its benzene units are hindered and which comprises replacing all or a part of the hydrogen atoms of the hydroxyl groups of a calixarene derivative represented by the general formula: ##STR1## and is characterized by conducting the reaction in the presence of an alkaline earth metal. According to the present invention, an asymmetric calixarene derivative having a "cone" conformation can be selectively prepared by virtue of the template effect of the metal.

REFERENCES:
patent: 4855461 (1989-08-01), Harris

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