Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Water | HCID 962 | — |
| Reactant | Pyridine | HCID 1049 | — |
| Reactant | Methyl 4-chloroanthranilate | HCID 80001 | — |
| Reactant | 2-Ethylbutanedioyl dichloride | HCID 21864608 | — |
| Solvent | Toluene | HCID 1140 | — |
| Product | HCID 23152896 | HCID 23152896 | 89% |
Reaction Steps
To a solution of methyl 2-amino-4-chlorobenzoate (18.60 g, 100 mmol) and pyridine (11.5 ml, 142 mmol) in toluene (138 ml), was added dropwise a solution of ethyl succinyl chloride (18.9 ml, 133 mmol) in toluene (19 ml) at a temperature between 0° C. and 10° C. The mixture was stirred at 10° C. for 1 hr, water was added and the mixture was extracted with ethyl acetate. The organic layer was successively washed with 0.1N hydrochloric acid and 10% aqueous sodium hydrogen carbonate solution and dried over anhydrous magnesium sulfate. After filtration, the solvent was evaporated under reduced pressure to give methyl 4-chloro-2-(3-ethoxycarbonylpropionylamino)benzoate (27.90 g, yield 89%).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US07977331B1 |
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| Source dataset | uspto-grants-2011_07 |
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| ORD ID | ord-0ce9377b382540ba81f8431393adfd6e |
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| Source note | uspto-grants-2011_07 |
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