HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 131285Generated: October 30, 2026
Hydrochloric Acid → HCID 69300805, compound
https://huagongshe.com/reaction/131285
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Hydrochloric Acid | HCID 313 | — |
| Reactant | 4-Chlorobutyryl chloride | HCID 78370 | — |
| Reactant | Diisopropylethylamine | HCID 81531 | — |
| Reactant | Ethyl 4-(benzylamino)benzoate | HCID 3832836 | — |
| Solvent | Chloroform | HCID 6212 | — |
| Solvent | Dichloromethane | HCID 6344 | — |
| Product | HCID 69300805 | HCID 69300805 | — |
Reaction Steps
To a solution of ethyl 4-benzylaminobenzoate (6.0 g) in methylene chloride (60 mL) is added dropwise chlorobutyryl chloride (3.95 mL) and N,N-diisopropylethylamine (6.14 mL) under ice-cooling, and the mixture is stirred for 12 hours. The reaction mixture is diluted with chloroform and thereto is added 10% HCl. The organic layer is separated, washed successively with water, a saturated sodium hydrogencarbonate solution, water, and saturated brine, dried over anhydrous sodium sulfate, and concentrated in vacuo. The residue is purified by flash column chromatography on silica gel (Solvent; n-hexane:ethyl acetate=4:1) to give ethyl 4-[N-benzyl-N-(4-chlorobutyryl)amino]benzoate (8.27 g, yield; quantitative) as an oil. MS (APCI) m/z; 360/362 [M+H]+
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US07384952B2 |
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| Source dataset | uspto-grants-2008_06 |
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| ORD ID | ord-3a129cab96f347c082e7fba86edc7c97 |
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| Source note | uspto-grants-2008_06 |
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