Patent ID: 7014868
Filing Date: 2006-03-21
Classification: C07C,Y10S

Abstract:
1. A process for the preparation of an hexameric complex comprising: (a) providing a methylene-bridged tetramer of trihydroxybenzene characterized by the formula:  wherein Ar is a trihydroxybenzene radical and CH—R is a substituted methylene bridge between adjacent Ar groups in which R is an aryl or alkylaryl group containing from 6 to 20 carbon atoms, an aliphatic group containing from 2 to 20 carbon atoms, or a substituted aliphatic or aryl or alkylaryl group having a substituent selected from the group consisting of carbonyl, carboxyl, amide, halide, ester, and hydroxyl groups, solubilized in an amphiphilic organic solvent; (b) incorporating into said amphiphilic solvent an activator comprising an organic compound of a lower molecular weight than said tetramer and functionalized with at least one of an acidic group, a halogen, an amino group, an amido group, an ester group, and a hydroxy group; and (c) heating said solution at a temperature and a time sufficient to evaporate at least a portion said amphiphilic solvent with crystallization of a spheroidal hexamer characterized by the formula: wherein Ar and R are as defined above.