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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2232612Generated: October 27, 2026

Hydrochloric Acid → HCID 22840735, compound

https://huagongshe.com/reaction/2232612

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant(1R,4R,5S)-6,6-dimethyl-2-oxo-4-trichloromethyl-3-oxabicyclo[3.1.0]hexaneHCID 10538220—
ReactantDiisobutylaluminumhydrideHCID 21225700—
SolventTolueneHCID 1140—
ProductHCID 22840735HCID 2284073571.9%

Reaction Conditions

Temperature-60 °C

Reaction Steps

75 ml of toluene solution of 20% of diisobutyl-aluminum hydride were slowly added at -60° C. to a solution of 20 g of (1R,4R,5S) 6,6-dimethyl-4-trichloromethyl-3-oxa-bicyclo (3,1,0)-hexane-2-one in 200 ml of toluene and the mixture was stirred at -60° C. for one hour and was poured into an ice-water mixture. Aqueous N hydrochloric acid was added to the mixture to adjust the pH to 3 to 4 and the mixture was filtered. The decanted benzene phase was washed with aqueous sodium bicarbonate solution, with water and evaporated to dryness under reduced pressure. The residue was added to petroleum ether (b.p.=35°-70° C.) and the mixture was filtered to obtain 14.5 g of (1R,2S,4R,5S) 6,6-dimethyl-4-trichloromethyl-3-oxa-bicyclo (3,1,0) hexan-2-ol melting at 140° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04788305
Source datasetuspto-grants-1988_11
ORD IDord-e6fc0de8a105498c87869c29a503680b
Source noteuspto-grants-1988_11