Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Benzylamine | HCID 7504 | — |
| Reactant | Binap, (A+-)- | HCID 634876 | — |
| Reactant | Sodium t-butoxide | HCID 23676156 | — |
| Reactant | tert-Butyl 5-iodo-2,3-dihydro-1H-pyrido[3,4-b][1,4]oxazine-1-carboxylate | HCID 46737980 | — |
| Catalyst | (1E,4E)-1,5-diphenylpenta-1,4-dien-3-one; palladium | HCID 6505921 | — |
| Solvent | 1,4-Dioxane | HCID 31275 | — |
| Product | HCID 68089343 | HCID 68089343 | 76.4% |
Reaction Steps
A mixture of tert-butyl 5-iodo-2,3-dihydropyrido[3,4-b][1,4]oxazine-1-carboxylate (5 g, 13.8 mmol), benzylamine (1.776 g, 16.6 mmol), bis(dibenzylideneacetone)palladium (397 mg, 0.79 mmol), (+/−)-2,2′-bis(diphenylphosphino)-1,1′-binaphthyl (858 mg, 1.38 mmol), and sodium tert-butoxide (2.65 g, 27.6 mmol) in dioxane (50 mL) was heated to 120° C. for 16 h under nitrogen. The mixture was filtered. The filtrate was concentrated. The residue was purified by silica gel column chromatography (PE/EtOAc v/v 1:1) to give tert-butyl 5-(benzylamino)-2,3-dihydropyrido[3,4-b][1,4]oxazine-1-carboxylate (3.6 g, 76% yield) as a yellow solid. ESI MS: m/z 342 [M+H]+.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08765760B2 |
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| Source dataset | uspto-grants-2014_07 |
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| ORD ID | ord-bf8674c9bf054dbb9fd1960636a0f07f |
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| Source note | uspto-grants-2014_07 |
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