Sodium ethoxide → 7-[(E)-2-(2-Butoxy-3-methoxyphenyl)-1-ethenyl]-6-[4-(trifluoromethyl)phenyl]-5H-[1,3]thiazolo[3,2-a]pyrimidin-5-one

HRID 1642427Notes

Reaction equation

HRID 1642427 reaction equation
[CH3:1][C:2]1[N:3]=[C:4]2[S:21][CH:20]=[CH:19][N:5]2[C:6](=[O:18])[C:7]=1[C:8]1[CH:13]=[CH:12][C:11]([C:14]([F:17])([F:16])[F:15])=[CH:10][CH:9]=1.[CH2:22]([O:26][C:27]1[C:34]([O:35][CH3:36])=[CH:33][CH:32]=[CH:31][C:28]=1[CH:29]=O)[CH2:23][CH2:24][CH3:25].[O-]CC.[Na+]>C(O)C>[CH2:22]([O:26][C:27]1[C:34]([O:35][CH3:36])=[CH:33][CH:32]=[CH:31][C:28]=1/[CH:29]=[CH:1]/[C:2]1[N:3]=[C:4]2[S:21][CH:20]=[CH:19][N:5]2[C:6](=[O:18])[C:7]=1[C:8]1[CH:13]=[CH:12][C:11]([C:14]([F:17])([F:15])[F:16])=[CH:10][CH:9]=1)[CH2:23][CH2:24][CH3:25]

Participants

5

Reactant 3

HCID 2723922Sodium ethoxideHCID 29742412-Butoxy-3-methoxybenzaldehydeHCID 667528027-Methyl-6-[4-(trifluoromethyl)phenyl]-5H-[1,3]thiazolo[3,2-a]pyrimidin-5-one

Product 1

HCID 444671597-[(E)-2-(2-Butoxy-3-methoxyphenyl)-1-ethenyl]-6-[4-(trifluoromethyl)phenyl]-5H-[1,3]thiazolo[3,2-a]pyrimidin-5-oneYield 42%

Reagents, catalysts & solvents 1

HCID 702EthanolSolvent

Procedure

The title compound was prepared by condensation of Intermediate 5 (400 mg, 1.289 mmol) with 2-butoxy-3-methoxybenzaldehyde (400 mg, 1.922 mmol) in presence of sodium ethoxide (175 mg, 2.578 mmol) in ethanol (15 ml) according to the procedure described in Example 24 to afford 271 mg of the desired product as an off-white solid; 1H NMR (300 MHz, DMSO-d6) δ 0.95 (t, J=6.3 Hz, 3H), 1.42-1.48 (m, 4H), 3.77 (s, 3H), 3.79-3.85 (m, 2H), 6.91-7.01 (m, 4H), 7.52 (d, J=4.8 Hz, 1H), 7.58 (d, J=7.8 Hz, 2H), 7.82 (d, J=8.4 Hz, 2H), 8.01 (d, J=4.8 Hz, 1H), 8.08 (d, J=15.6 Hz, 1H); ESI-MS (m/z) 501.18 (M+H)+.

Sources & evidence

ORD record
ord-40edcdc478cf4a5dba4d0ed4834091f3
Source dataset
uspto-grants-2012_02
Patent number
US08119647B2

Reaction notes

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