Chemistry of hydrocarbon compounds – Alicyclic compound synthesis – Adamantane or derivative
Reexamination Certificate
2007-06-20
2009-02-10
Caldarola, Glenn (Department: 1797)
Chemistry of hydrocarbon compounds
Alicyclic compound synthesis
Adamantane or derivative
C585S734000, C585S741000, C585S747000, C585S748000, C585S749000
Reexamination Certificate
active
07488859
ABSTRACT:
A method for producing adamantane includes isomerizing exo-tetrahydrodicyclopentadiene into adamantane in an acidic chloroaluminate ionic liquid composed of aluminum(III) trichloride and a quaternary ammonium halide having a quaternary ammonium cation selected from a group consisting of tetraalkylammonium, dialkylpyridinium, and trialkylimidazolium.
REFERENCES:
patent: 3894099 (1975-07-01), Takaishi et al.
patent: 3944626 (1976-03-01), Honna et al.
patent: 4086284 (1978-04-01), Schneider et al.
Huang Ming-Yu
Lin Jann-Chen
Lin Kun-Hai
Wu Jung-Chung
Bullock In Suk
Caldarola Glenn
CPC Corporation, Taiwan
Finnegan Henderson Farabow Garrett & Dunner L.L.P.
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