Imaging Science and Photochemistry ›› 2013, Vol. 31 ›› Issue (1): 1-9.DOI: 10.7517/j.issn.1674-0475.2013.01.001

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Intramolecular Photodimerization of 2-Naphthalene-Labeled Poly(ethyl glycol) (N-P4-N) Induced by γ-Cyclodextrin

CHENG Su-fang1,2, CHEN Bin1, ZHANG Li-ping1, TONG Zhen-he(TUNG Chen-ho)1, WU Li-zhu1   

  1. 1. Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China;
    2. Graduate University of Chinese Academy of Sciences, Beijing 100049, P. R. China
  • Received:2012-06-08 Revised:2012-08-16 Online:2013-01-15 Published:2013-01-15

Abstract: Intramolecular photodimerization of 2-naphthalene-labeled poly(ethyl glycol) (N-P4-N) induced by γ-cyclodextrin in aqueous solution was investigated. Regioselective and stereoselective photodimerization of N-P4-N has been demonstrated to be controlled by γ-CD, and thus giving rise to anti-head-to-head intramolecular cubane-like photodimer as the sole product with 20.4% e.e. value.

Key words: bis-2-naphthoate, intramolecular photodimerization, cubane-like photodimer, γ-cyclodextrin, enantioselectivity

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