Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Diethyl Ether | HCID 3283 | — |
| Reactant | Boron tribromide | HCID 25134 | — |
| Reactant | Ethyl 2-(2-methoxyanilino)benzoate | HCID 13424425 | — |
| Solvent | Dichloromethane | HCID 6344 | — |
| Product | HCID 13424426 | HCID 13424426 | 57.4% |
Reaction Steps
A solution of 9.74 g (0.0359 mole) of ethyl 2-(2-methoxyphenylamino)benzoate in 50 ml of methylene dichloride was cooled to -78° C. and 114 ml of boron tribromide (1M in methylene dichloride) was added dropwise over a period of 20 minutes. The reaction mixture was stirred at -78° C. for three hours, then at -40° C. for one hour and finally kept in a refrigerator at -4° C. overnight. Ether (50 ml) was added and the mixture poured into ice-water and ether. The ether solution was separated, dried over anhydrous magnesium sulfate and concentrated. The residue was recrystallized from acetonitrile to give 5.3 g of ethyl 2-(2-hydroxyphenylamino)benzoate, m.p. 105°-106° C.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US04515980 |
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| Source dataset | uspto-grants-1985_05 |
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| ORD ID | ord-10d40f4a16054b2ba9b0c8551e6a27a2 |
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| Source note | uspto-grants-1985_05 |
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