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Synthesis of Polymer‐bound Sensitizers and their Applications in the Preparation of Previtamin D 3 from Tachysterol
Author(s) -
You ChangJiang,
Xie Rong,
Gao YunYan,
Han YongBin,
Yang GuoQiang,
Li Yi
Publication year - 2004
Publication title -
chinese journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 1001-604X
DOI - 10.1002/cjoc.20040220516
Subject(s) - chemistry , photoisomerization , moiety , polystyrene , polymer , photochemistry , anthracene , toluene , size exclusion chromatography , phase (matter) , polymer chemistry , combinatorial chemistry , isomerization , organic chemistry , catalysis , enzyme
Two kinds of polymer‐bound photosensitizers were synthesized, in which anthracene acts as sensitizer moiety, polystyrene (PS) and poly(methyl methylacrylate) (PMMA) serve as solid phase supports, respectively. The photoisomerization of tachysterol to previtamin D 3 was carried out with these polymer‐bound photosensitizers in ethanol and toluene solutions. The experiment results demonstrate that these solid phase photosensitizers are efficient for the photoisomerization with good recycle property and can be simply separated from the reaction mixtures by filtration.