Oxalyl chloride → 5-(4-(4-Cyanophenyl)piperidine-1-carbonyl)-2-cyclobutyl-4-methylbenzoyl chloride

HRID 541387Notes

Reaction equation

[C:1]([C:3]1[CH:8]=[CH:7][C:6]([CH:9]2[CH2:14][CH2:13][N:12]([C:15]([C:17]3[C:18]([CH3:30])=[CH:19][C:20]([CH:26]4[CH2:29][CH2:28][CH2:27]4)=[C:21]([CH:25]=3)[C:22](O)=[O:23])=[O:16])[CH2:11][CH2:10]2)=[CH:5][CH:4]=1)#[N:2].C(Cl)(=O)C([Cl:34])=O>ClCCl.CN(C)C=O>[C:1]([C:3]1[CH:8]=[CH:7][C:6]([CH:9]2[CH2:14][CH2:13][N:12]([C:15]([C:17]3[C:18]([CH3:30])=[CH:19][C:20]([CH:26]4[CH2:29][CH2:28][CH2:27]4)=[C:21]([CH:25]=3)[C:22]([Cl:34])=[O:23])=[O:16])[CH2:11][CH2:10]2)=[CH:5][CH:4]=1)#[N:2]

Participants

Conditions

Temperature: 40 °C

Procedure

To a round-bottom flask was added a solution of 5-(4-(4-cyanophenyl)piperidine-1-carbonyl)-2-cyclobutyl-4-methylbenzoic acid (compound 234, 500 mg, 1.24 mmol, 1.00 equiv) in dichloromethane (5 mL). Oxalyl chloride (317 mg, 2.50 mmol, 2.00 equiv) and N,N-dimethylformamide (˜5 mg) were added dropwise to the mixture. The resulting solution was stirred for 1 h at 40° C., then concentrated and dried under reduced pressure to yield 480 mg (92%) of the title compound as a light yellow oil.

Workup

concentrationconcentrated
customdried under reduced pressure

Sources & evidence

ORD record: ord-05345f767ef94e1393d050da4003880e
Source dataset: uspto-grants-2014_10
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08871790B2

Reaction notes

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