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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 58929Generated: October 25, 2026

Ethanol → HCID 178524123, compound

https://huagongshe.com/reaction/58929

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanolHCID 702—
ReactantWaterHCID 962—
Reactant8-HydroxyquinolineHCID 1923—
ReactantPiperidineHCID 8082—
ReactantHafnium chloride (HfCl4) (6CI,8CI); Hafnium chloride; Hafnium tetrachloride; Hafnium(IV) chloride; Hafnium chloride (HfCl4), (T-4)-HCID 9927068—
ProductHCID 178524123HCID 178524123—

Reaction Steps

To a solution of 8-Hydroxyquinoline (5.44 g, 37.5 mmol) in ethanol (200 mL, 95%) was added hafnium (IV) chloride (3.0 g, 9.37 mmol) in ethanol (100 mL), followed by a further 300 mL water. The pH of the solution was increased by dropwise addition of piperidine until a yellow precipitate forms. The resulting yellow precipitate was collected and washed with ethanol (100 mL, 95%), water (200 mL) and finally ethanol (100 mL, 95%). The sample was dried under vacuum at 80° C. until no further weight loss was detected. Sublimation (400° C., 10−6 Torr) yielded an analytical sample (4.5 g, 64%), m.p. 398° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09437828B2
Source datasetuspto-grants-2016_09
ORD IDord-644951c6206f42fa8b2a98e7ef1e0ec4
Source noteuspto-grants-2016_09