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

HRID 1642429Notes

Reaction equation

HRID 1642429 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:27][C:28]1[C:35]([O:36][CH3:37])=[CH:34][CH:33]=[CH:32][C:29]=1[CH:30]=O)[CH2:23][CH:24]([CH3:26])[CH3:25].[O-]CC.[Na+]>C(O)C>[CH2:22]([O:27][C:28]1[C:35]([O:36][CH3:37])=[CH:34][CH:33]=[CH:32][C:29]=1/[CH:30]=[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][CH:24]([CH3:26])[CH3:25]

Participants

5

Reactant 3

HCID 2723922Sodium ethoxideHCID 43471291HCID 43471291, compoundHCID 667528027-Methyl-6-[4-(trifluoromethyl)phenyl]-5H-[1,3]thiazolo[3,2-a]pyrimidin-5-one

Product 1

HCID 444671617-[(E)-2-(2-Isopentyloxy-3-methoxyphenyl)-1-ethenyl]-6-[4-(trifluoromethyl)phenyl]-5H-[1,3]thiazolo[3,2-a]pyrimidin-5-oneYield 46.4%

Reagents, catalysts & solvents 1

HCID 702EthanolSolvent

Procedure

The title compound was synthesized by condensation of Intermediate 5 (400 mg, 1.289 mmol) with 2-isopentyloxy-3-methoxybenzaldehyde (400 mg, 1.812 mmol) in presence of sodium ethoxide (163 mg, 2.418 mmol) in ethanol (15 ml) according to the procedure described in Example 24 to give 308 mg of the desired product as an off-white solid; 1H NMR (300 MHz, DMSO-d6) δ 0.92 (d, J=6.3 Hz, 6H), 1.42 (q, J=6.3 Hz, 2H), 1.80-1.90 (m, 1H), 3.77 (s, 3H), 3.84 (t, J=6.3 Hz, 2H), 6.90-7.00 (m, 4H), 7.51 (d, J=4.8 Hz, 1H), 7.58 (d, J=7.8 Hz, 2H), 7.83 (d, J=7.8 Hz, 2H), 8.01 (d, J=4.8 Hz, 1H), 8.09 (d, J=15.6 Hz, 1H); ESI-MS (m/z) 515.52 (M+H)+.

Sources & evidence

ORD record
ord-937a141efcf04cf097bc3b52fdab3a61
Source dataset
uspto-grants-2012_02
Patent number
US08119647B2

Reaction notes

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