Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Patent
1988-12-15
1990-05-22
Schwartz, Richard A.
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
548346, C07D23358
Patent
active
049279424
ABSTRACT:
This invention discloses an improvement in the method for preparation of imidazoles by dehydrogenation of imidazolines over a nickel catalyst comprising reacting the imidazoline over a nickel catalyst in combination with from 2 to 30 weight percent of a catalyst from the group consisting of copper, chromium or a combination of both at a temperature of 160.degree. C. to 250.degree. C. and a pressure of atmospheric to 500 psig.
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Speranza George P.
Su Wei-Yang
Kendrick Cynthia L.
Park Jack H.
Priem Kenneth R.
Schwartz Richard A.
Texaco Chemical Co.
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