反应详情

Dissolve 4.43 gm. of the alcohol of Step A in 100 cc. of benzene and add 1 cc (10.5 mmole) of phosphorous tribromide. Stir at room temperature for 1 hour, add water and then dilute with toluene. Wash three times with water, dry and strip to a solid residue.

1. dissolutionDissolve 4.43 gm
2. washWash three times with water
3. customdry