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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2072018Generated: October 29, 2026

Sulfuric Acid → HCID 20489818, compound

https://huagongshe.com/reaction/2072018

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSulfuric AcidHCID 1118—
Reactant1-(Dimethylamino)cyclohexanecarbonitrileHCID 101188—
SolventBarium hydroxide, octahydrateHCID 17749109—
ProductHCID 20489818HCID 20489818—

Reaction Steps

1-Cyano-N,N-dimethyl cyclohexylamine (10 g.) was added portionwise to conc. sulphuric acid (20 ml.) and the solution left for 15 minutes. The cooled solution was diluted with ice-cold water and neutralised with barium hydroxide octahydrate. The mixture was filtered on hyflo and the filtrate evaporated to dryness when the residual oil (9.1 g., 81%) crystallised on standing. Recrystallisation from petrol (80/100) afforded 1-dimethylamino cyclohexane carboxamide m.p. 65°69°.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04049663
Source datasetuspto-grants-1977_09
ORD IDord-fbae10c4b1074ad4b208a013766c7856
Source noteuspto-grants-1977_09