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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1615677Generated: November 2, 2026

Benzylamine → HCID 68089343, compound

https://huagongshe.com/reaction/1615677

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBenzylamineHCID 7504—
ReactantBinap, (A+-)-HCID 634876—
ReactantSodium t-butoxideHCID 23676156—
Reactanttert-Butyl 5-iodo-2,3-dihydro-1H-pyrido[3,4-b][1,4]oxazine-1-carboxylateHCID 46737980—
Catalyst(1E,4E)-1,5-diphenylpenta-1,4-dien-3-one; palladiumHCID 6505921—
Solvent1,4-DioxaneHCID 31275—
ProductHCID 68089343HCID 6808934376.4%

Reaction Conditions

Temperature120 °C

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

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08765760B2
Source datasetuspto-grants-2014_07
ORD IDord-bf8674c9bf054dbb9fd1960636a0f07f
Source noteuspto-grants-2014_07