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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 399395Generated: November 1, 2026

Benzene → HCID 67904803, compound

https://huagongshe.com/reaction/399395

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 numberUS05821239
Source datasetuspto-grants-1998_10
ORD IDord-09f07f5fa5b54b0b825df6479335411b
Source noteuspto-grants-1998_10