Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1090305Generated: November 2, 2026

Sodium Hydroxide → 3,4-Dihydro-2H-1,4-benzoxazine

https://huagongshe.com/reaction/1090305

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium HydroxideHCID 14798—
Reactant2H-1,4-benzoxazin-3(4H)-oneHCID 72757—
ReactantDiboronHCID 6328200—
SolventTetrahydrofuranHCID 8028—
Product3,4-Dihydro-2H-1,4-benzoxazineHCID 585096—

Reaction Steps

3,4-Dihydro-3-oxo-1,4(2H)-benzoxazine was refluxed for several hours in one equivalent of diborane in tetrahydrofuran. Excess sodium hydroxide solution was added, the product was extracted with ether and the solvent was evaporated to give the title compound as an oil.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05081242
Source datasetuspto-grants-1992_01
ORD IDord-56440bdad44c40ccb092f6327e052940
Source noteuspto-grants-1992_01