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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1943637Generated: November 3, 2026

Tetrahydrofuran → 3,4-Dihydro-2,2-dimethyl-2H-pyrido[4,3-b]-1,4-oxazine

https://huagongshe.com/reaction/1943637

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTetrahydrofuranHCID 8028—
ReactantHCID 10678883HCID 10678883—
ReactantAluminium lithium hydrideHCID 21226445—
Product3,4-Dihydro-2,2-dimethyl-2H-pyrido[4,3-b]-1,4-oxazineHCID 15857210100%

Reaction Steps

By the same method as in the step c) of Example 2, 2,2-dimethyl-4H-pyrido[4,3-b][1,4]oxazin-3-one (120 mg, 0.67 mmol) was reacted with 1.0M Lithium aluminum hydride dissolved in tetrahydrofuran (1.4 ml, 1.4 mmol) to obtain 2,2-dimethyl-3,4-dihydro-2H-pyrido[4,3-b][1,4]oxazine (110 mg, quantitative yield).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08394792B2
Source datasetuspto-grants-2013_03
ORD IDord-856e99661f2f438e95b0e4d7b57d866b
Source noteuspto-grants-2013_03