p-Toluenesulfonic acid monohydrate → Methyl 2-fluoro-4-[(2-{1-[5-(4-t-butylphenyl)-4-hydroxy-3-thienyl]ethylidene}hydrazino)carbonyl]benzoate

HRID 2103890Notes

Reaction equation

HRID 2103890 reaction equation
[C:1]([C:5]1[CH:10]=[CH:9][C:8]([C:11]2[S:12][CH:13]=[C:14]([C:17]([CH3:19])=O)[C:15]=2[OH:16])=[CH:7][CH:6]=1)([CH3:4])([CH3:3])[CH3:2].[F:20][C:21]1[CH:30]=[C:29]([C:31]([NH:33][NH2:34])=[O:32])[CH:28]=[CH:27][C:22]=1[C:23]([O:25][CH3:26])=[O:24].O.S(C1C=CC(C)=CC=1)(O)(=O)=O>>[F:20][C:21]1[CH:30]=[C:29]([C:31]([NH:33][N:34]=[C:17]([C:14]2[C:15]([OH:16])=[C:11]([C:8]3[CH:9]=[CH:10][C:5]([C:1]([CH3:4])([CH3:3])[CH3:2])=[CH:6][CH:7]=3)[S:12][CH:13]=2)[CH3:19])=[O:32])[CH:28]=[CH:27][C:22]=1[C:23]([O:25][CH3:26])=[O:24]

Participants

4

Reactant 3

HCID 521998p-Toluenesulfonic acid monohydrateHCID 442072892-(4-t-Butylphenyl)-3-hydroxy-4-methylcarbonylthiopheneHCID 67050257Methyl 2-fluoro-4-hydrazinocarbonylbenzoate

Product 1

HCID 72360131Methyl 2-fluoro-4-[(2-{1-[5-(4-t-butylphenyl)-4-hydroxy-3-thienyl]ethylidene}hydrazino)carbonyl]benzoateYield 94.2%

Procedure

From 2-(4-t-butylphenyl)-3-hydroxy-4-methylcarbonylthiophene (59.0 mg, 0.215 mmol), methyl 2-fluoro-4-hydrazinocarbonylbenzoate (45.6 mg, 0.215 mmol) and tosylic acid monohydrate (12.3 mg, 0.0645 mmol), 94.9 mg of the desired product was obtained in the same manner as in Synthetic Example 65 as a pale yellow solid (yield 94%).

Sources & evidence

ORD record
ord-b71090da3f0f4d76bcb4dd60c1c84677
Source dataset
uspto-grants-2009_08
Patent number
US07576115B2

Reaction notes

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