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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 26285Generated: October 29, 2026

Hydrogen Bromide → HCID 70573577, compound

https://huagongshe.com/reaction/26285

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrogen BromideHCID 260—
ReactantHCID 20570498HCID 20570498—
CatalystPalladiumHCID 23938—
SolventEthanolHCID 702—
ProductHCID 70573577HCID 70573577—

Reaction Steps

A solution of 7-cyanomethyloxy-2,2-dimethyl-4-(3-trifluoromethylphenyl) chroman (5.4 g) and 10% palladium on charcoal (0.5 g) in ethanol (75 ml) was hydrogenated at atmospheric pressure. The catalyst was removed by filtration and the filtrate evaporated under reduced pressure to give an oil which was treated with ethereal hydrogen bromide to give the title compound (4 g) as a very hygroscopic non-crystalline compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04148909
Source datasetuspto-grants-1979_04
ORD IDord-c3cffae9cff84ea793bf4ba0bde645d5
Source noteuspto-grants-1979_04