'A METHOD FOR SYNTHESIS OF DENDRIMER POLYMERIC RESINS FOR SOLID PHASE ORGANIC SYNTHESIS'

摘要

This invention relates to a method for the synthesis of dendrimer polymeric resins for solid phase organic synthesis comprising suspension polymerization of the monomer, styrene and divinylbenzene crosslinker and crosslinker as herein described to form a polymer; preparing the Schiff base using a triamino moiety and a phenyl aldehyde; subjecting the said Schiff base to react with the polymer to obtain Schiff base attached polymer backbone, with two reactive dendritic sites S1 and S2; subjecting the said Schiff base attached polymer with two dendritic sites S1 and S2, wherein the number of dendritic sites can be increased by repeating steps (ii) & (iii) & addition of Schiff base moiety to the CPT terminals followed by attachment of PEG units, to the step of chloromethylation to obtain chloromethylated phenyl terminals [CPT1 & CPT2]; attaching PEG to the dentritic site via Na derivative of PEG (partially converted Na and OH terminal PEG) or amino attached PEG chains.