Abstract
A general route to 5,5′-difunctionalized bis( m-phenylene) macrocycles ( 1) is reported. Bis(5-carbomethoxy1,3-phenylene)-30-crown-4 ( 1e) has been synthesized in one step from methyl 3,5-dihydroxybenzoate and 1,10-dibromodecane in the presence of sodium hydride in dimethylformamide. This monomer is suitable for synthesis of backbone polymacrocycles of predominantly hydrocarbon character.
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