HuagongsheHuagongshe Chemistry Print Report · For research reference only
p-Toluenesulfonic acid monohydrate → Methyl 2-nitro-4-[(2-{1-[5-(4-trifluoromethylphenyl)-4-hydroxy-3-thienyl]ethylidene}hydrazino) carbonyl]benzoate
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | p-Toluenesulfonic acid monohydrate | HCID 521998 | — |
| Reactant | 1-{4-Hydroxy-5-[4-(trifluoromethyl)phenyl]thiophen-3-yl}ethan-1-one | HCID 60206789 | — |
| Reactant | 4-Methoxycarbonyl-3-nitrobenzhydrazide | HCID 66986356 | — |
| Product | Methyl 2-nitro-4-[(2-{1-[5-(4-trifluoromethylphenyl)-4-hydroxy-3-thienyl]ethylidene}hydrazino) carbonyl]benzoate | HCID 72359929 | 80.5% |
Reaction Steps
From 2-(4-trifluoromethylphenyl)-3-hydroxy-4-methylcarbonylthiophene (57.3 mg, 0.2 mmol), methyl 4-hydrazinocarbonyl-2-nitrobenzoate (47.8 mg, 0.2 mmol) and tosylic acid monohydrate (11.4 mg, 0.06 mmol), 81.7 mg of the desired product was obtained in the same manner as in Synthetic Example 65 as a pale yellow solid (yield 81%).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US07576115B2 |
| Source dataset | uspto-grants-2009_08 |
| ORD ID | ord-680f3a1da70f41de827a3296c4758a98 |
| Source note | uspto-grants-2009_08 |