Oxalyl chloride → 1-[(4-Fluorophenyl)carbamoyl]cyclopropanecarbonyl chloride
Reaction equation
C(Cl)(=O)C([Cl:4])=O.[F:7][C:8]1[CH:13]=[CH:12][C:11]([NH:14][C:15]([C:17]2([C:20]([OH:22])=O)[CH2:19][CH2:18]2)=[O:16])=[CH:10][CH:9]=1>C1COCC1>[F:7][C:8]1[CH:13]=[CH:12][C:11]([NH:14][C:15]([C:17]2([C:20]([Cl:4])=[O:22])[CH2:19][CH2:18]2)=[O:16])=[CH:10][CH:9]=1Participants
4
Reactant 2
Product 1
Reagents, catalysts & solvents 1
Procedure
Oxalyl chloride (291 mL) was added slowly to a cooled (approximately 5° C.) solution of 1-(4-fluoro-phenylcarbamoyl)-cyclopropanecarboxylic acid in THF at a rate such that the batch temperature did not exceed 10° C. When the addition was complete, the batch was allowed to warm to ambient temperature and held with stirring for approximately 2 hours, at which time in process HPLC analysis indicated the reaction was complete. The solution was used in the next step without further processing.
Workup
- customdid not exceed 10° C
- additionWhen the addition
Sources & evidence
- ORD record
- ord-430ed98523614c4ba5f8c748237175d0
- Source dataset
- uspto-grants-2016_06
- Patent number
- US09365516B2
Reaction notes
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