Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Methyl Acrylate | HCID 7294 | — |
| Reactant | HCID 15027460 | HCID 15027460 | — |
| Solvent | Methanol | HCID 887 | — |
| Product | HCID 15114470 | HCID 15114470 | 55.4% |
Reaction Steps
3.01 g (35 mmol) of acrylic acid methyl ester are added at 0°-5°, while stirring, to a solution of 6.2 g (35 mmol) of 2-(2-aminoethyl)chroman in 200 ml of methanol. Stirring is continued for a further 16 hours at 0°-5° and the mixture is then concentrated by evaporation in vacuo. 8.76 g (95.2%) of crude product are obtained and are chromatographed on 250 g of silica gel (0.040-0.063 mm) using ethyl acetate as the eluant. 5.10 g (55.4%) of N-[2-(chroman-2-yl)ethyl]-N-(2-methoxycarbonylethyl)-amine are thus obtained in the form of a yellow oil. The N-[2-(chroman-2-yl)ethyl]-N-(2-methoxycarbonylethyl)-amine hydrochloride produced therefrom using hydrochloric acid in diethyl ether crystallises from methanol/diethyl ether and melts at 152°-153°.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US04957928 |
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| Source dataset | uspto-grants-1990_09 |
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| ORD ID | ord-e77cbc4511534819a6c2a8a7850b0e5e |
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| Source note | uspto-grants-1990_09 |
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