Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Patent
1997-12-11
2000-01-25
Geist, Gary
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
585277, C07D21102, C07C 502
Patent
active
06018048&
ABSTRACT:
Noble metal, particularly ruthenium, Raney catalysts having the property of catalyzing the hydrogenation of (1) aromaticity-exhibiting ring portions of organic compounds, (2) carboxylic acids and their ester portions (carbonyl ester groups), (3) ring portions and carboxylic acid or their ester groups in compounds having such ring portions and carboxylic acid or their ester portions, and (4) ring portions and nitrile groups of aromatic nitrile compounds and methods for the preparation of corresponding hydrogenated compounds. The methods allow preparation of hydrogenated compounds having hydrogenated aromatic ring portions, hydrogenated carbonyl ester groups, hydrogenated aromatic ring and carbonyl ester groups, or hydrogenated aromatic rings and nitrile groups under milder hydrogen pressure and temperature conditions than the conventional catalysts.
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Hirayama Shuuji
Ishimura Yoshimasa
Marumo Kuniomi
Miura Motoo
Monzen Hiroyuki
Deemie Robert W.
Geist Gary
Showa Denko K.K.
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