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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1097406Generated: October 31, 2026

Hydrochloric Acid → HCID 86657329, compound

https://huagongshe.com/reaction/1097406

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantMethanolHCID 887—
ReactantHCID 12322860HCID 12322860—
ReactantDiisobutylaluminumhydrideHCID 21225700—
SolventTolueneHCID 1140—
ProductHCID 86657329HCID 8665732997%

Reaction Conditions

Temperature-78 °C

Reaction Steps

Ethyl (6,7,8,9-tetrahydro-5H-5-benzocycloheptenyl)acetate (0.550 g) was dissolved in anhydrous toluene (10 ml), and the solution was slowly added with diisobutylaluminum hydride (0.93 M n-hexane solution, 2.8 ml) at −78° C. under an argon flow. The reaction mixture was stirred −78° C. for 1 hour, and then slowly added with methanol (3 ml) and 2 N aqueous hydrochloric acid, and the mixture was extracted with ethyl acetate. The organic layer was washed successively with water and saturated brine, and dried over anhydrous sodium sulfate. The organic layer was concentrated under reduced pressure, and the resulting residue was purified by silica gel column chromatography (developing solvent: ethyl acetate:n-hexane=1:300) to obtain the title compound (0.432 g, yield: 97%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08143260B2
Source datasetuspto-grants-2012_03
ORD IDord-9c2dccd088af46f59371243a73e6c78a
Source noteuspto-grants-2012_03