Welcome to chemicalbook!
Chinese English Japanese Germany Korea
400-158-6606
Try our best to find the right business for you.
Do not miss inquiry messages Please log in to view all inquiry messages.

Welcome back!

ChemicalBook CAS DataBase List CHOLESTERYL CHLOROACETATE

CHOLESTERYL CHLOROACETATE synthesis

5synthesis methods
-

Yield:3464-50-4 98%

Reaction Conditions:

with triethylamine in dichloromethane at 20;

Steps:



chloroacetic acid cholesterylester (1): Slowly add a solution of 9.54 ml (120 mmol) chloroacetylchloride in 50 ml dichloromethane in drops to a solution of 38.67 g (100 mmol) cholesterol and 20.79 ml (150 mmol) triethylamine in 150 ml dichloromethane under refrigeration.Stir the formulation overnight at room temperature and then extract twice with 100 ml 2 N HCl each time.Remove the solvent and stir the residue in 200 ml dichloromethane with 5 g activated charcoal at room temperature.Filter off the activated charcoal, remove the solvent, and purify the residue via column chromatography on 50 g silica gel (dichloromethane).The yield is 45.04 g 1 as a colorless solid.

References:

US2003/229037,2003,A1 Location in patent:Page/Page column 37-38, 7

CHOLESTERYL CHLOROACETATE Related Search: