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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 848424Generated: October 30, 2026

Hydrochloric Acid → HCID 86738041, compound

https://huagongshe.com/reaction/848424

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantPotassium HydroxideHCID 14797—
ReactantHydrazine hydrate (1:1)HCID 24654—
Reactant6-Hydroxy-1,4,4-trimethylbicyclo[3.2.0]heptane-2,3-dione 3-oximeHCID 86738042—
SolventEthylene GlycolHCID 174—
SolventWaterHCID 962—
ProductHCID 86738041HCID 8673804150.9%

Reaction Steps

To a solution of 2050 mg of the ketoxime (VI) in 25 ml of ethylene glycol, was added 0.7 ml of 80% hydrazine hydrate. After having been kept at 40° to 50° C. for 30 minutes, the solution was admixed with 750 mg of potassium hydroxide and kept at 150° C. for 4 hours under an argon atmosphere. After cooling and adding 50 ml of water, the solution was neutralized with 1 N HCl and extracted with methylene chloride. The extract was washed with an aqueous sodium bicarbonate solution, then with an aqueous sodium chloride solution, dried over magnesium sulfate, and concentrated in vacuo to give 970 mg of a crystalline compound (V). M.p. 130°-133° C.; MS m/e: 183 (M+).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04296036
Source datasetuspto-grants-1981_10
ORD IDord-81bdb3c6271f425891d340cff9a63ec4
Source noteuspto-grants-1981_10