Organic compounds -- part of the class 532-570 series – Organic compounds – Oxygen containing
Patent
1995-12-12
1997-10-21
Dentz, Bernard
Organic compounds -- part of the class 532-570 series
Organic compounds
Oxygen containing
C07C 4712
Patent
active
056798687
ABSTRACT:
A process for the preparation of glutaric dialdehyde by the reaction of alkoxy dihydropyrans of the general formula I ##STR1## in which R stands for C.sub.1 to C.sub.20 alkoxy, with water at temperatures ranging from 0.degree. to 150.degree. C. and pressures of from 0.01 to 50 bar in the presence of a which microporous, crystalline aluminum silicate catalyst, e.g. a beta-type zeolite or pentasil catalyst having a pore diameter greater than 5.4 .ANG..
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patent: 2546018 (1951-03-01), Smith et al.
patent: 3308069 (1967-03-01), Wadinger et al.
patent: 4224876 (1980-09-01), Warner et al.
patent: 4448977 (1984-05-01), Warner et al.
Becker Rainer
Gehrer Eugen
Henne Andreas
Kneuper Heinz-Josef
Schossig Juergen
BASF - Aktiengesellschaft
Dentz Bernard
Padmanabhan Sreeni
Shurtleff John H.
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