Citation: Chang Jiang YOU, Rong XIE, Yun Yan GAO, Yong Bin HAN, Guo Qiang YANG, Yi LI. Synthesis of Silica-anchored Sensitizer and its Application in the Preparation of Previtamin D₃ from Tachysterol[J]. Chinese Chemical Letters, ;2004, 15(5): 601-604. shu

Synthesis of Silica-anchored Sensitizer and its Application in the Preparation of Previtamin D₃ from Tachysterol

1.
Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100101;
2.
Key Laboratory of Photochemistry, Center for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080

Received Date: 30 April 2003

Fund Project: This work was supported by the Ministry of Science and Technology of Ghina (Grant No.G2000078100), the National Natural Science Foundation of China (No. 20172059) and Chinese Academy of Sciences.

A silica gel-anchored photosensitizer was synthesized with anthracene as sensitizer moiety. The photoisomerization of tachysterol to previtamin D₃ was carried out with this heterogeneous photosensitizer in ethanol. The experiment results demonstrate that this solid phase photosensitizer is efficient for the photoisomerization and can be simply separated from the reaction mixture by filtration.
- Solid phase photosensitizer,
- photoisomerization,
- tachysterol,
- vitamin D₃
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