4-Chlorobenzoyl chloride → HCID 3786025, compound

To a solution of 2-amino-2-methyl-propan-1-ol (59 g, 0.66 mol) in dichloromethane (120 mL) at 0° C. was added dropwise a solution of 4-chloro-benzoyl chloride (53 g, 0.3 mol) in dichloromethane (75 mL). The resulting mixture was stirred at r.t. for 2.5 h, then filtered and the filtrate was concentrated. Then SOCl2 (120 g, 1 mol) was added dropwise. The mixture was stirred at room temperature for overnight, then diluted with ethyl ether (150 mL). The resulting mixture was cooled in an ice bath, neutralized with aqueous NaOH (20%). The organic layer was separated, and aqueous layer was extracted with ethyl ether for 3 times. The organic lays were combined and washed with water twice, dried over anhydrous Na2SO4 and concentrated. The residue was distilled in vacuo to give the title product (25 g) as oil.

1. filtrationfiltered
2. concentrationthe filtrate was concentrated
3. stirringThe mixture was stirred at room temperature for overnight
4. temperatureThe resulting mixture was cooled in an ice bath
5. customThe organic layer was separated
6. extractionaqueous layer was extracted with ethyl ether for 3 times
7. washwashed with water twice
8. dry with materialdried over anhydrous Na2SO4
9. concentrationconcentrated
10. distillationThe residue was distilled in vacuo

ORD record

ord-d0aedf23d050411eb8e97a5e151bc394

Source dataset

uspto-grants-2009_02

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US07495007B2