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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 236983Generated: October 25, 2026

Iodine → (1S,3Z)-3-{2-[(1R,4E,7aR)-7a-methyl-1-[(2R)-6-methylheptan-2-yl]-octahydro-1H-inden-4-ylidene]ethylidene}-4-methylidenecyclohexan-1-ol

https://huagongshe.com/reaction/236983

Reaction equation

Participants

RoleNameHCIDCharge
ReactantIodineHCID 807—
ReactantVitamin D3HCID 5280795—
SolventHexaneHCID 8058—
Product(1S,3Z)-3-{2-[(1R,4E,7aR)-7a-methyl-1-[(2R)-6-methylheptan-2-yl]-octahydro-1H-inden-4-ylidene]ethylidene}-4-methylidenecyclohexan-1-olHCID 1230309961.3%

Reaction Steps

To a solution of Vitamin D3 (750 mgs) in hexane (20 ml) was added iodine (2 mgs). After stirring for 1 hr. at 20° the solution was washed with aqueous sodium thiosulphate, water and dried over sodium sulphate. After removal of the solvent, chromatography afforded trans-vitamin D3 (460mgs).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04159326
Source datasetuspto-grants-1979_06
ORD IDord-663b0618c75145368eab0ce7fa61ecd4
Source noteuspto-grants-1979_06