Diisopropylethylamine → HCID 86694738, compound

HRID 475247Notes

Reaction equation

[CH:1]1([C:4]2[NH:8][N:7]=[C:6]([NH2:9])[CH:5]=2)[CH2:3][CH2:2]1.[Cl:10][C:11]1[N:16]=[C:15](Cl)[CH:14]=[C:13]([C:18]([F:21])([F:20])[F:19])[N:12]=1.CCN(C(C)C)C(C)C>CCO>[Cl:10][C:11]1[N:16]=[C:15]([NH:9][C:6]2[CH:5]=[C:4]([CH:1]3[CH2:3][CH2:2]3)[NH:8][N:7]=2)[CH:14]=[C:13]([C:18]([F:21])([F:19])[F:20])[N:12]=1

Participants

Conditions

Temperature: 70 °C

Procedure

A mixture of 5-cyclopropyl-1H-pyrazol-3-amine (1.42 g, 11.5 mmol), 2,4-dichloro-6-(trifluoromethyl)pyrimidine (2.50 g, 11.5 mmol), DIPEA (4.05 mL, 23.0 mmol), and anhydrous EtOH (35 mL) was stirred at 70° C. under N2 for 22 h. The reaction mixture was concentrated in vacuo. The residue was diluted with EtOAc and the organic layer was washed sequentially with water and brine, dried (Na2SO4), filtered and concentrated in vacuo. Trituration with DCM afforded 1.80 g (51.5%) of 2-chloro-N-(5-cyclopropyl-1H-pyrazol-3-yl)-6-(trifluoromethyl)pyrimidin-4-amine (186) as a white solid: 1H NMR (400 MHz, DMSO-d6): δ 12.35 (br d, J=30.2 Hz, 1H), 10.97 (s, 1H), 8.14 (s, 0.50H, rotamer), 7.13 (s, 0.50H, rotamer), 6.38 (s, 0.50H, rotamer), 5.73 (s, 0.50H, rotamer), 1.91 (s, 1H), 0.98-0.90 (m, 2H), 0.70 (q, J=5.5 Hz, 2H); MS (ESI) m/z=304.2/306.2 [M+1]+.

Workup

concentrationThe reaction mixture was concentrated in vacuo
additionThe residue was diluted with EtOAc
washthe organic layer was washed sequentially with water and brine
dry with materialdried (Na2SO4)
filtrationfiltered
concentrationconcentrated in vacuo

Sources & evidence

ORD record: ord-b41f19869d74447f961ad301ce95998b
Source dataset: uspto-grants-2014_01
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08637537B2

Reaction notes

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