Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Ethanol | HCID 702 | — |
| Reactant | 2-oxaspiro[4.4]nonane-1,3-dione | HCID 2737102 | — |
| Product | HCID 68753467 | HCID 68753467 | — |
Reaction Steps
A solution of 2-oxaspiro[4.4]nonane-1,3-dione (522 mg, 3.39 mmol) in anhydrous EtOH (15 ml) was allowed to stir at 70° C. for 22 hours under nitrogen. The reaction mixture was concentrated to give a crude 1-(2-ethoxy-2-oxoethyl)cyclopentanecarboxylic acid (compound A, 672 mg). The product (86% purity) was used for next step without further purification; 1H NMR (400 MHz, CDCl3) δ ppm 1.24 (t, J=7.2 Hz, 3H) 1.57-1.81 (m, 6H) 2.19-2.25 (m, 2H) 2.69 (s, 2H) 4.12 (q, J=7.2 Hz, 3H) 11.65 (br s, 1H).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|
| Patent number | US08877815B2 |
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| Source dataset | uspto-grants-2014_11 |
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| ORD ID | ord-eac45998f3804510bbb335e5fe226a3e |
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| Source note | uspto-grants-2014_11 |
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