Water → 2-(2,4-Dichloro-phenyl)-3-(6-methoxy-pyridin-3-yl)-3-oxo-propionitrile

HRID 333861Notes

Reaction equation

CO[C:3](=[O:12])[C:4]1[CH:9]=[CH:8][C:7]([O:10][CH3:11])=[N:6][CH:5]=1.[Cl:13][C:14]1[CH:22]=[C:21]([Cl:23])[CH:20]=[CH:19][C:15]=1[CH2:16][C:17]#[N:18].O>C(O)(C)(C)C>[Cl:13][C:14]1[CH:22]=[C:21]([Cl:23])[CH:20]=[CH:19][C:15]=1[CH:16]([C:3]([C:4]1[CH:5]=[N:6][C:7]([O:10][CH3:11])=[CH:8][CH:9]=1)=[O:12])[C:17]#[N:18]

Participants

Conditions

Temperature: 100 °C

Procedure

To a suspension of potassium-tert-butylate (2.052 g) in tert-butanol (25 ml) was added methyl-6-methoxynicotinate (2.5 g). 2,4-Dichlorobenzyl cyanide (2.782 g) was added portion wise. The mixture was heated to 100° C. for 1.5 h. After cooling to room temperature, water (100 ml) was added and the mixture was washed with diethyl ether. The aqueous phase was neutralized with concentrated aqueous HCl and extracted with EtOAc. The organic phase was washed with water and with brine, dried (MgSO4), filtered and concentrated to dryness to give the title compound (1.407 g) as a yellow foam that was used in the next step without further purification. MS (m/e)=321.0 [M+H+].

Workup

temperatureAfter cooling to room temperature
washthe mixture was washed with diethyl ether
extractionextracted with EtOAc
washThe organic phase was washed with water and with brine
dry with materialdried (MgSO4)
filtrationfiltered
concentrationconcentrated to dryness

Sources & evidence

ORD record: ord-9dcae863c2d24463ae9abf9130636ceb
Source dataset: uspto-grants-2014_11
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08883786B2

Reaction notes

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