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ChemicalBook CAS DataBase List DESMOSTEROL ACETATE
2665-04-5

DESMOSTEROL ACETATE synthesis

13synthesis methods
-

Yield:2665-04-5 85%

Reaction Conditions:

with dmap in hexane at 50; for 3 h;

Steps:

2.1. General procedure for the synthesis of desmosterol acetate 3

General procedure for the synthesis of desmosterol acetate 3
To a solution of the desmosterol (20 g, 0.05 mol) in hexane (150 mL), DMAP (200 mg) and acetic anhydride (10 g, 0.1 mol) were added, after stirring at 50 °C in 3 h (TLC control, TLC solvents: n-hexane/EtOAc (8:1, v/v)), the reaction mixture was successively washed with water, HCl solution (5%wt.) and saturated NaHCO3 solution.
Desmosterol acetate (18.85 g, 85.0%) was obtained by evaporating in a vacuum and recrystallization in EtOH.

References:

Zhao, Qian;Ji, Li;Qian, Guo-Ping;Liu, Jian-Gang;Wang, Zi-Qiang;Yu, Wan-Feng;Chen, Xin-Zhi [Steroids,2014,vol. 85,p. 1 - 5]