Dimethylformamide → HCID 22030088, compound

HRID 968600Notes

Reaction equation

Cl[C:2]1[N:7]=[CH:6][C:5]([C:8]2[C:13]([C:14]([F:17])([F:16])[F:15])=[CH:12][CH:11]=[CH:10][N:9]=2)=[CH:4][C:3]=1[NH2:18].[Cl-].[NH4+].[OH-].[NH4+].C[N:24]([CH:26]=[O:27])C>O.[C-]#N.[Zn+2].[C-]#N.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.[Pd].[Pd].C1(P(C2C=CC=CC=2)[C-]2C=CC=C2)C=CC=CC=1.[C-]1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=C1.[Fe+2]>[NH2:18][C:3]1[C:2]([C:26]([NH2:24])=[O:27])=[N:7][CH:6]=[C:5]([C:8]2[C:13]([C:14]([F:17])([F:16])[F:15])=[CH:12][CH:11]=[CH:10][N:9]=2)[CH:4]=1

Participants

Conditions

Temperature: 0 °C

Procedure

Heat a solution of 6′-chloro-3-trifluoromethyl-[2,3′]bipyridinyl-5′-ylamine (25 g, 0.091 mol), zinc cyanide (6.75 g, 0.058 mol), tris[dibenzylidineacetone]di-palladium (also referred to as “pd2(dba)3”; 2.63 g, 2.86 mmol), 1,1′-bis(diphenylphosphino)ferrocene (also referred to as “DPPF”; 3.16 g, 5.72 mmol) in DMF (250 mL) and water (2.5 mL), under a nitrogen atmosphere, at 120° C. for 1 hour. Add water (30 mL) and heat the solution at 120° C. for a further 4 hours to complete the hydrolysis. Cool the reaction to 0° C. and add a solution of saturated ammonium chloride (200 ml), water (200 mL) and concentrated ammonium hydroxide (50 mL). After stirring at 0° C. for 1 hour, filter the yellow precipitate, and wash with water (200 mL) and a 1:1 mixture of ether-hexane (200 mL). Dry the solid in air and then in a vacuum oven to give (23 g, 90%) of the title compound.

Workup

customthe hydrolysis
temperatureCool
customthe reaction to 0° C.
filtrationfilter the yellow precipitate
washwash with water (200 mL)
additiona 1:1 mixture of ether-hexane (200 mL)
customDry the solid in air

Sources & evidence

ORD record: ord-b59ea10f78174340acb3669f5da7c0fb
Source dataset: uspto-grants-2007_12
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07304059B2

Reaction notes

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