Photochemistry of nonconjugated bichromophoric systems III. Synthesis and photoreaction of poly(ethylene glycol) biscoumarinyloxyacetates |
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| Authors: | Yong-Mei Wang Da-Ming Du Ji-Ben Meng Xiu-Zhong Zhou Lei Wang |
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| Abstract: | A series of poly(ethylene glycol) biscoumarinyloxyacetatea have been synthesized and their intramolecular photochemical cyclodimerizations have been studied. It was found that only syn-HT configuration products were obtained when these bisesters were directly irradiated in chloroform, and the yields of the products decreased with the increase of the chain length. This photocyclization reaction is a convenient and effective method to synthesize macrocyclic compounds. |
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| Keywords: | Photochemistry intramolecular cyclodimerization poly(ethylene glycol) biscoumarinyloxyacetate |
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