Crystal Structures of Vitamin D and Related Compounds
β Scribed by BERNAL, J. D.
- Book ID
- 109497489
- Publisher
- Nature Publishing Group
- Year
- 1932
- Tongue
- English
- Weight
- 234 KB
- Volume
- 129
- Category
- Article
- ISSN
- 0028-0836
- DOI
- 10.1038/129277a0
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Recently much attention has focused on inducing the hydroxyl group at C-1 and C-25 positions of 1 to obtain the active compound (2, 3, and 4). ## A. From Cholesterol Barton et a1.6 reported in 1973 the convenient synthesis of 1-OH-D3 (3) from la,2a-epoxycholesta-4,6-dien-3-one (8) (obtained from
## Abstract Details on the iodineβcatalyzed reactions of previtamin D, tachysterol, __cisβ__ and __trans__βvitamin D (influence of solvent, concentration, wavelength of light) are given. The possibility of a previtamin D determination based on the __cis/trans__ isomerisation is indicated. Some resu