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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1586338Generated: November 3, 2026

1,8-Diaminonaphthalene → HCID 18785364, compound

https://huagongshe.com/reaction/1586338

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1,8-DiaminonaphthaleneHCID 68067—
CatalystHCID 23707900HCID 23707900—
SolventEthyl ketoneHCID 7288—
ProductHCID 18785364HCID 187853641,769.7%

Reaction Steps

With 1.58 g of 1,8-diaminonaphthalene, 10.8 g of diethyl ketone and 25 mg of sodium p-toluenesulfonate monohydrate were mixed. The mixture was heated and stirred for 5 hours in a steam bath. The resulting mixture was extracted with 100 ml of ethyl acetate and 50 ml of a saturated aqueous solution of sodium hydrogencarbonate. The solvent was distilled out to obtain 20 g of 2,2-diethyl-2,3-dihydroperimidine.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05945209
Source datasetuspto-grants-1999_08
ORD IDord-fa84beabbb27454a8a3e4199577c5957
Source noteuspto-grants-1999_08