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7626532 
Journal Article 
Photosensitization of trans-vitamin D-3 to cis-vitamin D-3 in heterogeneous system 
Han, YB; Chen, JP; Gao, YY; Liu, BN; Yang, GQ; Li, Y; , 
2005 
1 
Chinese Chemical Letters
ISSN: 1001-8417
EISSN: 1878-5964 
ELSEVIER SCIENCE INC 
NEW YORK 
16 
7 
871-874 
English 
WOS:000231036400006 
Two modes of heterogeneous photoisomerization of trans-vitamin D-3 to cis-vitamin D-3 are described. The occurrence of isomerization on the substrate bounded to the polymeric support gives us the possibility in succession synthesis of 1 alpha-hydroxyvitamin D-3. The polymer-bound anthracene can sensitize isomerization of trans-vitamin D-3 to cis-vitamin D-3 efficiently and ease the separation process. 
Heterogeneous photoisomerization; Solid phase; Vitamin D3