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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1658568Generated: November 2, 2026

Pyridine → HCID 131710345, compound

https://huagongshe.com/reaction/1658568

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyridineHCID 1049—
ReactantPhthalic AnhydrideHCID 6811—
Reactant1-Octyn-4-olHCID 103656—
SolventDiethyl EtherHCID 3283—
ProductHCID 131710345HCID 131710345—

Reaction Steps

A mixture consisting of 6.3 parts of 1-octyn-4(RS)-ol, 7.4 parts of phthalic anhydride and 10 parts by volume of pyridine is heated at the reflux temperature for about 3 hours, then allowed to cool for about 16 hours. At the end of that time the mixture is diluted with ether, then is washed with dilute hydrochloric acid. Extraction with dilute sodium hydroxide, followed by acidification of the alkaline extract affords an aqueous solution which is then extracted with ether. The ether extract is dried over anhydrous sodium sulfate, decolorized with activated carbon and stripped of solvent to afford 1-octyn-4(RS)-ol phthalate.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS03965143
Source datasetuspto-grants-1976_06
ORD IDord-73f143343bde44b280b50688de21b43e
Source noteuspto-grants-1976_06