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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 461340Generated: October 29, 2026

Water → HCID 21393443, compound

https://huagongshe.com/reaction/461340

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantAluminium lithium hydrideHCID 21226445—
ReactantHCID 21393456HCID 21393456—
Solvent1,4-DioxaneHCID 31275—
ProductHCID 21393443HCID 21393443—

Reaction Conditions

Temperature15 °C

Reaction Steps

1.46 g (0.005 mol) 2-methyl-3,4-dioxo-1,2,3,4,10,14b-hexahydro-benzo[c]pyrazino[1,2-a]pyrido[2,3-f]azepine is added cautiously to a suspension of 0.4 g LiAlH4 in 25 ml dry dioxan under nitrogen at 25° C. The reaction mixture is boiled under reflux for 2 hours, after which it is cooled to 15° C. 5 ml water is then added, and the inorganic salts are filtered off and rinsed with dioxan. The filtrate is evaporated to dryness, giving a yellow oil. Melting point maleate salt: 163°-164° C (dec.).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04062848
Source datasetuspto-grants-1977_12
ORD IDord-4adcfe325f114931bb4d591890d574af
Source noteuspto-grants-1977_12