Oxalyl chloride → HCID 131735777, compound

HRID 2202760Notes

Reaction equation

HRID 2202760 reaction equation
[CH2:1]([O:3][C:4]([C@H:6]1[CH2:11][CH2:10][C@H:9]([N:12]2[C:16]([C:17]([F:20])([F:19])[F:18])=[C:15]([C:21](O)=[O:22])[CH:14]=[N:13]2)[CH2:8][C@@H:7]1[CH3:24])=[O:5])[CH3:2].C(Cl)(=O)C([Cl:28])=O>C(Cl)Cl.CN(C=O)C>[Cl:28][C:21]([C:15]1[CH:14]=[N:13][N:12]([C@H:9]2[CH2:10][CH2:11][C@H:6]([C:4]([O:3][CH2:1][CH3:2])=[O:5])[C@@H:7]([CH3:24])[CH2:8]2)[C:16]=1[C:17]([F:20])([F:19])[F:18])=[O:22]

Participants

5

Reactant 2

HCID 65578Oxalyl chlorideHCID 118383055HCID 118383055, compound

Product 1

HCID 131735777HCID 131735777, compound

Reagents, catalysts & solvents 2

HCID 6228DimethylformamideCatalystHCID 6344DichloromethaneSolvent

Procedure

To a light-yellow clear solution of 1-((1S,3S,4S)-4-(ethoxycarbonyl)-3-methylcyclohexyl)-5-(trifluoromethyl)-1H-pyrazole-4-carboxylic acid with its (1R,3R,4R)-isomer (0.3128 g, 0.898 mmol) in DCM (8.98 ml) was added oxalyl chloride (0.095 ml, 1.123 mmol) followed by DMF (1 drop) and the light-yellow clear reaction mixture was stirred at room temperature. After 2 h. The mixture was concentrated in vacuo to give (1S,2S,4S)-ethyl 4-(4-(chlorocarbonyl)-5-(trifluoromethyl)-1H-pyrazol-1-yl)-2-methylcyclohexane carboxylate with its (1R,2R,4R)-isomer as brown syrupy solid. To the residue was added a solution of N-(2-(3,5-dichloropyridin-4-yl)-2-((triethylsilyl)oxy)ethyl)-2,2-dimethylpropan-1-amine (0.352 g, 0.898 mmol) in THF (8.98 ml) followed by DIPEA (0.626 ml, 3.59 mmol). The brown heterogeneous mixture was stirred at room temperature. After 3 h, LC-MS (ESI) showed that the intermediate (1S,2S,4S)-ethyl 4-(4-((2-(3,5-dichloropyridin-4-yl)-2-((triethylsilyl)oxy)ethyl)(neopentyl)carbamoyl)-5-(trifluoromethyl)-1H-pyrazol-1-yl)-2-methylcyclohexanecarboxylate with its (1R,2R,4R)-isomer was formed: LCMS (ESI) m/z 721.1 (M+H)+.

Workup

  1. concentrationThe mixture was concentrated in vacuo

Sources & evidence

ORD record
ord-dfe09e698f3c4cbd97d8c171cd39ecfd
Source dataset
uspto-grants-2016_06
Patent number
US09365522B2

Reaction notes

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