Dimethylformamide → HCID 66767080, compound

HRID 1661990Notes

Reaction equation

[OH:1][C:2]1[CH:3]=[C:4]2[C:8](=[CH:9][C:10]=1[C:11]([O:13][CH2:14][CH3:15])=[O:12])[N:7]([CH:16]1[CH2:21][CH2:20][CH2:19][CH2:18][O:17]1)[N:6]=[CH:5]2.F[C:23]1[CH:28]=[CH:27][C:26]([N+:29]([O-:31])=[O:30])=[CH:25][C:24]=1[F:32].C([O-])(O)=O.[Na+].CN(C=O)C>O>[CH2:14]([O:13][C:11]([C:10]1[CH:9]=[C:8]2[C:4]([CH:5]=[N:6][N:7]2[CH:16]2[CH2:21][CH2:20][CH2:19][CH2:18][O:17]2)=[CH:3][C:2]=1[O:1][C:23]1[CH:28]=[CH:27][C:26]([N+:29]([O-:31])=[O:30])=[CH:25][C:24]=1[F:32])=[O:12])[CH3:15]

Participants

Conditions

Temperature: 80 °C

Procedure

A mixture of ethyl 5-hydroxy-1-(tetrahydro-2H-pyran-2-yl)-1H-indazole-6-carboxylate (10.8 g, 37 mmol), 1,2-difluoro-4-nitrobenzene (7.1 g, 44 mmol), NaHCO3 (7.4 g, 88 mmol) and DMF (100 mL) is stirred at 80° C. for 2 hours. After it is cooled to RT, water (400 mL) and PE (50 mL) are added and the mixture is stirred for 20 min. The precipitate is collected and dried under vacuum at 50° C. to afford the product (15 g, 95% yield). MS (m/z): 430.1 (M+H).

Workup

temperatureAfter it is cooled to RT
stirringthe mixture is stirred for 20 min
customThe precipitate is collected
customdried under vacuum at 50° C.

Sources & evidence

ORD record: ord-e185d7f75c9f43de8213fe4791143681
Source dataset: uspto-grants-2011_10
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08030302B2

Reaction notes

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