Organic compounds -- part of the class 532-570 series – Organic compounds – Nitriles
Patent
1995-02-28
1996-05-14
Brust, Joseph Paul
Organic compounds -- part of the class 532-570 series
Organic compounds
Nitriles
558431, C07C25310
Patent
active
055169287
ABSTRACT:
A process for the preparation of 3-cyano-3,5,5-trimethylcyclohexanone by the reaction of isophorone with hydrogen cyanide in the presence of quaternary ammonium catalysts at temperatures ranging from 80.degree. to 180.degree. C. and pressures ranging from 0.5 to 20 bar, in which the ammonium catalysts used are salts of the general formula I ##STR1## in which R.sup.1, R.sup.2, R.sup.3, R.sup.4 denote C.sub.1 -C.sub.18 alkyl, C.sub.5 -C.sub.8 cycloalkyl, aryl, C.sub.7 -C.sub.18 aralkyl or C.sub.2 -C.sub.18 hydroxyalkyl and
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Laqua Gerhard
Merger Franz
Mundinger Klaus
Witzel Tom
BASF - Aktiengesellschaft
Brust Joseph Paul
Shurtleff John H.
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