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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2414188Generated: November 3, 2026

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

https://huagongshe.com/reaction/2414188

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 numberUS04721784
Source datasetuspto-grants-1988_01
ORD IDord-7a1b65a27b54409397288490953b264c
Source noteuspto-grants-1988_01