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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 67201Generated: October 28, 2026

Ethanethiol → HCID 20528836, compound

https://huagongshe.com/reaction/67201

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanethiolHCID 6343—
Reactant3-(4-Methoxyphenyl)pentanedioic acidHCID 347253—
SolventDimethylformamideHCID 6228—
ProductHCID 20528836HCID 2052883681.5%

Reaction Conditions

Temperature165 °C

Reaction Steps

To a stirred suspension of 57% sodium hydride-paraffin (6.45 g), in dry dimethylformamide (70 ml) is slowly added ethanethiol (11.89 ml) in dry dimethylformamide (20 ml). After stirring the resultant slurry for 15 minutes, a solution of 3-(4-methoxyphenyl)glutaric acid (3.0 g) in dry dimethylformamide (20 ml) is added. The slurry is heated in a bath at 165° C. for 5.0 hours and most of the solvent is removed by distillation in vacuo. The residue is diluted with water, acidified with concentrated hydrochloric acid and extracted twice with ether (the extracts are discarded). The solution is saturated with sodium chloride and extracted with ethyl acetate. The ethyl acetate solution is washed once with brine, dried and the residue crystallized from chloroform-hexane to afford 2.3 g of 3-(4-hydroxyphenyl)glutaric acid, melting point 168°-170° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04345096
Source datasetuspto-grants-1982_08
ORD IDord-3e28ecf6d2704b6a8b6cf19550632077
Source noteuspto-grants-1982_08