Abstract
Two oxa macrocyclic compounds were synthesized via double photocycloaddition reaction between 6,6′-dimethyl-4,4′-(trimethylenedioxy)-di-2-pyrone and ethylene glycol dimethacrylates(n=1-3) by photosensitizing effect of benzophenone in acetonitrile solution with yields of 14% and 7%,20% and 11%,31% and 14%,respectively.The structures of products were identified by FTIR,1H NMR,MS and elemental analysis.The synthetic method has several advantages such as mild reaction conditions,simple operation and environmental friendliness.
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