反应详情

CrO3 (VI) (3.204 g, 32.04 mM) was dissolved in sulfuric acid (2.76 ml), followed by stirring for a time, and then water (4.8 ml) was added to yield a solution. This solution was added drop by drop to a solution of 12-cyclohexyldodecanol (5.36 g, 20 mM) in acetone (300 ml) under ice cooling conditions, followed by stirring for 1 hour. To the mixture, iso-prapanol (about 2 ml) was added and then concentrated to dryness under reduced pressure. To the resulting residue, water (50 ml) and chloroform (50 ml) were added, followed by vigorous stirring, after which the chloroform layer was separated. The chloroform layer was dryed over anhydrous sodium sulfate, purified by silica gel colum (50 g) (methanol-chloroform (1:49)) to yield the title compound (5.3 g, yield 58.7%) as a colorless powder.

1. customto yield a solution
2. stirringby stirring for 1 hour
3. additionTo the mixture, iso-prapanol (about 2 ml) was added
4. concentrationconcentrated to dryness under reduced pressure
5. additionTo the resulting residue, water (50 ml) and chloroform (50 ml) were added
6. customafter which the chloroform layer was separated
7. custompurified by silica gel colum (50 g) (methanol-chloroform (1:49))