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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1658291Generated: November 1, 2026

Formaldehyde → HCID 21528959, compound

https://huagongshe.com/reaction/1658291

Reaction equation

Participants

RoleNameHCIDCharge
ReactantFormaldehydeHCID 712—
Reactant1,4-DioxaneHCID 31275—
ReactantPotassium PermanganateHCID 516875—
ReactantHCID 21529043HCID 21529043—
SolventWaterHCID 962—
ProductHCID 21528959HCID 21528959—

Reaction Steps

To a stirred solution of 4.2 g. of 1-isopropyl-3,4,7,8-tetrahydro-4-phenyl-furo[3,2-h]quinazolin-2(1H)-one in 180 ml. of dioxane cooled to 8°±5°C. is added dropwise a solution of 2.3 g. of potassium permanganate in 100 ml. of water. After the addition is completed 1.5 ml. of formalin solution is added. The solids which precipitate are removed by filtration and the filtrate concentrated in vacuo to obtain an oil of 1-isopropyl-7,8-dihydro-4-phenyl-furo[3,2-h]quinazolin-2(1H)-one.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS03963717
Source datasetuspto-grants-1976_06
ORD IDord-14e64739f99b4c72877ec169ab4507ce
Source noteuspto-grants-1976_06