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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1657497Generated: November 3, 2026

Pyridine → HCID 68142511, compound

https://huagongshe.com/reaction/1657497

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyridineHCID 1049—
ReactantPropionyl chlorideHCID 62324—
Reactant(1R,3aS,3bS,7S,9aR,9bS,11aR)‐5‐[(Diethylamino)methyl]‐9a,11a‐dimethyl‐1‐[(2R)‐6‐ methylheptan‐2‐yl]‐ 1H,2H,3H,3aH,3bH,4H,6H,7H,8H,9H,9aH,9bH,10H,11H,11aH‐cyclopenta[a]phenanthren‐7‐olHCID 191548—
ReactantPotassium BicarbonateHCID 516893—
SolventWaterHCID 962—
ProductHCID 68142511HCID 68142511—

Reaction Steps

To a solution of 10 parts of 6-(diethylaminomethyl)cholest-5-en-3β-ol in 40 parts of pyridine at 0° is added, slowly and with stirring, 5 parts of propionyl chloride. When the addition is complete, stirring is continued for 2 hours while the reaction mixture warms to room temperature, whereupon 100 parts of water and 100 parts of aqueous 5% potassium bicarbonate are consecutively mixed in. The oil which separates is extracted with hexane. The extract is washed with water, dried over anhydrous sodium sulfate, and stripped of solvent by vacuum distillation, affording 6-(diethylaminomethyl)-3β-(propionyloxy)cholest-5-ene as the residue.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS03960904
Source datasetuspto-grants-1976_06
ORD IDord-400ce63836d14681b6213510c204913a
Source noteuspto-grants-1976_06