Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Water | HCID 962 | — |
| Reactant | Dimethylformamide dimethyl acetal | HCID 78373 | — |
| Reactant | Hydroxyamine hydrochloride | HCID 443297 | — |
| Reactant | Methyl 3-oxoheptanoate | HCID 546075 | — |
| Solvent | Methanol | HCID 887 | — |
| Product | HCID 59170067 | HCID 59170067 | — |
Reaction Steps
Methyl 3-oxoheptanoate (0.16 g, 1 mmol) and 1,1-dimethoxy-N,N-dimethylmethanamine (0.12 g, 1 mmol) was mixed and heated for 1 h at 60° C. The bright yellow oil was dissolved in methanol (2 mL) and water (1 mL) whereby and hydroxylamine hydrochloride (0.07 g, 1 mmol) was added, resulting in a pH of ca 5. The reaction was heated at 60° C. for 3 days. The solvents were evaporated and the residue refluxed in acetic acid: conc. HCL (1+1 mL) for 4 h. The solvents were evaporated to dryness and the residue dissolved in water at ca pH 10, filtered and acidified with HCl and extracted to DCM, dried (Na2SO4) and evaporated to yield the title compound as a light brown solid. 1H NMR (400 MHz, CHLOROFORM-D) δ ppm 0.93 (t, J=7.32 Hz, 3 H) 1.33-1.45 (m, 2 H) 1.69-1.78 (m, 2 H) 3.12 (t, J=7.57 Hz, 2 H) 8.50 (s, 1H)
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US07666888B2 |
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| Source dataset | uspto-grants-2010_02 |
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| ORD ID | ord-4dcefb9141054ac8ba9004425e6b8a1f |
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| Source note | uspto-grants-2010_02 |
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