Photocycloaddition reactions of phenyl–vinyl bichromophoric systems
Abstract
The efficiency and mode of intramolecular photocycloaddition of the bichromophoric molecules Ph[CH2]mO[CH2]nCH
CH2 are shown to depend on the values of m and n and on the overall chain length; the importance of ethereal oxygen at the various positions in the chain is demonstrated by comparison of the results with those obtained from hydrocarbon systems.
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