Triethylamine → 4-chloro-2-fluoro-N-(2-methoxy-4-pyridyl)benzamide

HRID 1752962Notes

Reaction equation

HRID 1752962 reaction equation
[Cl:1][C:2]1[CH:10]=[CH:9][C:5]([C:6]([OH:8])=O)=[C:4]([F:11])[CH:3]=1.CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.[CH3:36][O:37][C:38]1[CH:43]=[C:42]([NH2:44])[CH:41]=[CH:40][N:39]=1.CCN(CC)CC>ClCCl>[Cl:1][C:2]1[CH:10]=[CH:9][C:5]([C:6]([NH:44][C:42]2[CH:41]=[CH:40][N:39]=[C:38]([O:37][CH3:36])[CH:43]=2)=[O:8])=[C:4]([F:11])[CH:3]=1

Participants

6

Reactant 4

HCID 8471TriethylamineHCID 991524-Chloro-2-fluorobenzoic acidHCID 2808912-Methoxypyridin-4-amineHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)

Product 1

HCID 867284664-chloro-2-fluoro-N-(2-methoxy-4-pyridyl)benzamideYield 39%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

A solution of 4-chloro-2-fluoro-benzoic acid (7.0 g, 40.10 mmol), HATU (15.25 g, 40.10 mmol), 2-methoxypyridin-4-amine (4.98 g, 40.10 mmol) and Et3N (22.4 mL, 160.4 mmol) in dichloromethane (63.0 mL) was stirred at room temperature overnight. The crude mixture was purified by column chromatography eluting with a gradient of ethyl acetate in hexanes (0-50%) to yield 4-chloro-2-fluoro-N-(2-methoxy-4-pyridyl)benzamide (4.35 g, 39%), as a white solid. ESI-MS m/z calc. 280.04, found 281.3 (M+1)+; Retention time: 1.31 minutes (3 minutes run). 1H NMR (400 MHz, DMSO-d6) δ 10.80 (s, 1H), 8.09 (m, 1H), 7.73 (t, J=8.0 Hz, 1H), 7.66 (dd, J=10.1, 1.9 Hz, 1H), 7.46 (dd, J=8.3, 1.9 Hz, 1H), 7.21 (m, 2H), 3.84 (s, 3H) ppm.

Workup

  1. customThe crude mixture was purified by column chromatography
  2. washeluting with a gradient of ethyl acetate in hexanes (0-50%)

Sources & evidence

ORD record
ord-35784f912b2b4d2c89138a9d68e4090f
Source dataset
uspto-grants-2015_10
Patent number
US09163042B2

Reaction notes

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