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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 362202Generated: October 30, 2026

Benzene → HCID 67904803, compound

https://huagongshe.com/reaction/362202

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBenzeneHCID 241—
ReactantTriethylamineHCID 8471—
Reactant1-Piperidinecarbonyl chlorideHCID 242085—
Reactant4-[[(Dimethylamino)methylene]amino]-3-pyridinolHCID 15380929—
ProductHCID 67904803HCID 67904803—

Reaction Steps

A mixture prepared from 4-[[(dimethylamino)methylene]amino]-3-pyridinol (5.2 g), triethylamine (4.8 mL), piperidine carbonyl chloride (4.89 mL) and benzene (173 mL) was refluxed for a half hour, cooled, poured directly onto a silica column and eluted with 5% Et3N/ethyl acetate to yield 7.55 g of product. Recrystallization from ethyl acetate and drying under high vacuum for 2 hours yielded 5.5 g of crystals, m.p. 90°-91 ° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05869480
Source datasetuspto-grants-1999_02
ORD IDord-1d30db78e69545e2932c2dca2e51f457
Source noteuspto-grants-1999_02