3,5-Difluorobenzoyl chloride → HCID 58181203, compound
Reaction equation
[F:1][C:2]1[CH:3]=[C:4]([CH:8]=[C:9]([F:11])[CH:10]=1)[C:5](Cl)=[O:6].[CH3:12][C:13]1[C:18]2[NH:19][C:20](=[O:22])[O:21][C:17]=2[CH:16]=[CH:15][CH:14]=1.[Cl-].[Cl-].[Cl-].[Al+3]>>[F:1][C:2]1[CH:3]=[C:4]([CH:8]=[C:9]([F:11])[CH:10]=1)[C:5]([C:15]1[CH:14]=[C:13]([CH3:12])[C:18]2[NH:19][C:20](=[O:22])[O:21][C:17]=2[CH:16]=1)=[O:6]Participants
4
Procedure
1.45 g (8.21 mmol) 3,5-difluorobenzoic acid chloride, 1.22 g (8.21 mmol) 4-methyl-3H-benzoxazol-2-one and 4.40 g (33.0 mmol) aluminium trichloride were heated to 125° C. for 1.5 h with stirring. The mixture was mixed with ice water and the product precipitated as a solid was suction filtered and washed with water. After trituration of the precipitate with MeOH it was suction filtered, washed with MeOH and dried i. vac.
Workup
- customthe product precipitated as a solid
- filtrationfiltered
- washwashed with water
- filtrationfiltered
- washwashed with MeOH
- customdried i
Sources & evidence
- ORD record
- ord-761dad4c90af4b42a266ff7560552253
- Source dataset
- uspto-grants-2014_01
- Patent number
- US08629137B2
Reaction notes
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