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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2072465Generated: October 31, 2026

Hydrochloric Acid → HCID 118714896, compound

https://huagongshe.com/reaction/2072465

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantFormaldehydeHCID 712—
ReactantDimethylamine, hydrochlorideHCID 10473—
Reactant5,6-Dimethoxy-1-indanoneHCID 75018—
SolventAcetoneHCID 180—
SolventEthanolHCID 702—
ProductHCID 118714896HCID 11871489653.8%

Reaction Steps

5,6-Dimethoxy-1-indanone (5.0 g), paraformaldehyde (1.6 g) and dimethylamine hydrochloride (2.7 g) are suspended in 15 ml of absolute ethanol, treated with 0.43 ml of concentrated hydrochloric acid and the mixture refluxed for 7 hours. The resulting suspension is cooled, diluted with 100 ml of acetone, stirred for 10 to 15 minutes and the precipitate filtered off to yield 4.0 g of the title compound, melting point 178°-180° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04051248
Source datasetuspto-grants-1977_09
ORD IDord-ea64edb248f84a78874f3a9121039532
Source noteuspto-grants-1977_09