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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 262805Generated: October 31, 2026

Hydrochloric Acid → 6-Isobutyl-3-methyl-2,4,5,6-tetrahydro-benzo[b]-furan-2-one

https://huagongshe.com/reaction/262805

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantPyruvic AcidHCID 1060—
Reactant3-(2-Methylpropyl)cyclohexan-1-oneHCID 12528502—
SolventAcetic AcidHCID 176—
Product6-Isobutyl-3-methyl-2,4,5,6-tetrahydro-benzo[b]-furan-2-oneHCID 21319605—

Reaction Steps

The process according to claim 1, wherein 3-isobutyl-cyclohexanone and pyruvic acid are heated in an HCl and acetic acid solution to give 6-isobutyl-3-methyl-2,4,5,6-tetrahydro-benzo[b]-furan-2-one and this product is heated for 4 to 5 hours with pyridine hydrochloride to give p-isobutylhydratropic acid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04154962
Source datasetuspto-grants-1979_05
ORD IDord-c2488fbff77043d4841b3b2dea366f46
Source noteuspto-grants-1979_05