Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1577445Generated: October 30, 2026

Carbon Tetrachloride → HCID 20570489, compound

https://huagongshe.com/reaction/1577445

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCarbon TetrachlorideHCID 5943—
ReactantHCID 12071756HCID 12071756—
CatalystPalladiumHCID 23938—
SolventEthanolHCID 702—
ProductHCID 20570489HCID 2057048998%

Reaction Steps

7-Benzyloxy-2,2-dimethyl-4-(3-trifluoromethylphenyl)-2H-chromene (10.0 g) was dissolved in ethanol (100 ml) and 10% Pd/C (1 g) added. This was hydrogenated at 60° and 5 atmospheres pressure for 18 hours. Filtration through kiesleguhr and evaporation of the solvent under reduced pressure gave an oil which solidified on addition of carbon tetrachloride. Recrystallisation from carbon tetrachloride gave the title compound (7.7 g), m.p. 63°-68° C., (analysing as compound plus 1 mole of carbon tetrachloride).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUSRE030739
Source datasetuspto-grants-1981_09
ORD IDord-6db6c2888db9413db04835c6c199eb4f
Source noteuspto-grants-1981_09