Potassium Carbonate → HCID 86636425, compound

HRID 1255667Notes

Reaction equation

Cl[C:2]1[CH:9]=[CH:8][C:5]([C:6]#[N:7])=[C:4]([N:10]([CH2:12][CH2:13][O:14][CH3:15])[CH3:11])[N:3]=1.[Br:16][C:17]1[CH:24]=[CH:23][C:22]([OH:25])=[CH:21][C:18]=1[CH:19]=[O:20].C([O-])([O-])=O.[K+].[K+]>CN(C=O)C>[Br:16][C:17]1[CH:24]=[CH:23][C:22]([O:25][C:2]2[CH:9]=[CH:8][C:5]([C:6]#[N:7])=[C:4]([N:10]([CH2:12][CH2:13][O:14][CH3:15])[CH3:11])[N:3]=2)=[CH:21][C:18]=1[CH:19]=[O:20]

Participants

Conditions

Temperature: 80 °C

Procedure

To a solution of 6-chloro-2-[(2-methoxy-ethyl)-methyl-amino]-nicotinonitrile (4) (11.6 g, 51.9 mmol) in DMF (anhydrous, 300 mL) were added 2-bromo-5-hydroxy-benzaldehyde (10.4 g, 51.9 mmol) and K2CO3 (14.3 g, 103.8 mmol). The reaction was heated at 80° C. for 16 hours. DMF was evaporated in vacuo. Purification was accomplished by silica gel chromatography, eluting with 5%-30% EtOAc gradient, to afford 15 g (75% yield) of the title compound. 1H NMR (400 MHz, CHLOROFORM-d) δ ppm 10.34 (s, 1H), 7.75-7.69 (m, 2H), 7.67 (d, J=8.6 Hz, 1H), 7.28-7.23 (m, 1H), 6.26 (d, J=8.6 Hz, 1H), 3.56 (t, J=5.5 Hz, 2H), 3.36 (t, J=5.5 Hz, 2H), 3.25 (s, 3H), 3.24 (s, 3H).

Workup

customDMF was evaporated in vacuo
customPurification
washeluting with 5%-30% EtOAc gradient

Sources & evidence

ORD record: ord-3b124ba42bc143719df01463312ffa2b
Source dataset: uspto-grants-2013_06
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08461135B2

Reaction notes

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