Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Triethylamine | HCID 8471 | — |
| Reactant | Ethyl Acetate | HCID 8857 | — |
| Reactant | 2,2-Dimethyl-1,3-dioxane-4,6-dione | HCID 16249 | — |
| Reactant | HCID 88258111 | HCID 88258111 | — |
| Solvent | Acetonitrile | HCID 6342 | — |
| Product | HCID 62231065 | HCID 62231065 | 60.6% |
Reaction Steps
To a solution of Meldrum's acid (10.0 g) in acetonitrile (231 mL), glycine ethyl hydrochloride (14.5 g) and triethylamine (14.1 g) were added and the mixture was stirred at 60° C. for 5 hours. After cooling the mixture to room temperature, ethyl acetate was added and extraction was conducted with a saturated aqueous solution of sodium hydrogencarbonate. To the combined aqueous layers, 1 mol/L hydrochloric acid was added and extraction was conducted with ethyl acetate. The combined organic layers were dried over anhydrous sodium sulfate. After removing the desiccant by filtration, the filtrate was concentrated under reduced pressure to give the titled compound as a colorless solid (7.95 g).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US09422240B2 |
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| Source dataset | uspto-grants-2016_08 |
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| ORD ID | ord-54aa30f792b3495fbcffbd2b8f92cd20 |
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| Source note | uspto-grants-2016_08 |
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