Phosphorus oxychloride → 5-methyl-7-[3-(trifluoromethyl)phenyl]-N-(3,4,5-trimethoxyphenyl)imidazo[5,1-f][1,2,4]triazin-2-amine

HRID 2374873

Reaction equation

HRID 2374873 reaction equation
[F:1][C:2]([F:34])([F:33])[C:3]1[CH:4]=[C:5]([CH:30]=[CH:31][CH:32]=1)[C:6]([NH:8][CH:9]([C:11]1[N:16]=[N:15][C:14]([NH:17][C:18]2[CH:23]=[C:22]([O:24][CH3:25])[C:21]([O:26][CH3:27])=[C:20]([O:28][CH3:29])[CH:19]=2)=[N:13][CH:12]=1)[CH3:10])=O.P(Cl)(Cl)(Cl)=O>ClCCCl>[CH3:10][C:9]1[N:8]=[C:6]([C:5]2[CH:30]=[CH:31][CH:32]=[C:3]([C:2]([F:34])([F:33])[F:1])[CH:4]=2)[N:16]2[C:11]=1[CH:12]=[N:13][C:14]([NH:17][C:18]1[CH:23]=[C:22]([O:24][CH3:25])[C:21]([O:26][CH3:27])=[C:20]([O:28][CH3:29])[CH:19]=1)=[N:15]2

Participants

4

Reactant 2

HCID 24813Phosphorus oxychlorideHCID 587119863-(trifluoromethyl)-N-(1-{3-[(3,4,5-trimethoxyphenyl)amino]-1,2,4-triazin-6-yl}ethyl)benzamide2×

Product 1

HCID 113286325-methyl-7-[3-(trifluoromethyl)phenyl]-N-(3,4,5-trimethoxyphenyl)imidazo[5,1-f][1,2,4]triazin-2-amineYield 3.3%

Reagents, catalysts & solvents 1

HCID 111,2-DichloroethaneSolvent

Procedure

In a similar manner as described for Example 1, 3-(trifluoromethyl)-N-(1-{3-[(3,4,5-trimethoxyphenyl)amino]-1,2,4-triazin-6-yl}ethyl)benzamide (Intermediate 14) (0.12 g, 0.25 mmol) in 1,2-dichloroethane (20 mL) and phosphorus oxychloride (0.28 mL, 3.0 mmol) gave 5-methyl-7-[3-(trifluoromethyl)phenyl]-N-(3,4,5-trimethoxyphenyl)imidazo[5,1-f][1,2,4]triazin-2-amine (0.0038 g) as a yellow solid. 1H NMR (CD3OD): δ9.08 (s, 1H), 8.72 (d, J=7.7 Hz, 1H), 8.59 (s, 1H), 7.76-7.65 (m, 2H), 7.00 (s, 2H), 6.99 (s, 1H), 3.76 (s, 3H), 3.74 (s, 6H), 2.60 (s, 3H). MS m/z 460 (M+1).

Sources & evidence

ORD record
ord-cbdf8b4150f84ccc851d9d0d4c213c17
Source dataset
uspto-grants-2008_12
Patent number
US07462614B2

Linked notes

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