Organic compounds -- part of the class 532-570 series – Organic compounds – Oxygen containing
Patent
1987-07-20
1989-01-17
Lone, Werren B.
Organic compounds -- part of the class 532-570 series
Organic compounds
Oxygen containing
568744, 568772, 585660, C07C 3706, C07C 3912, C07C 5333, C07C 5367
Patent
active
047989114
ABSTRACT:
A method for selective dehydrogenation of a compound, comprising contacting a compound of the formula ##STR1## wherein each R.sup.1, R.sup.2, R.sup.3 and R.sup.4 is independently selected from the group consisting of H, (C.sub.1 -C.sub.20) alkyl, (C.sub.3 -C.sub.20) cycloalkyl, (C.sub.6 -C.sub.20) aryl, (C.sub.7 -C.sub.20) alkylaryl, (C.sub.7 -C.sub.20) aralkyl groups, as well as substituted (C.sub.1 -C.sub.20) alkyl, (C.sub.3 -C.sub.20) cycloalkyl, (C.sub.6 -C.sub.20) aryl, (C.sub.7 -C.sub.20) aralkyl and (C.sub.7 -C.sub.20) arylalkyl moieties, optionally further substituted with --OR, wherein R is R.sup.1, R.sup.2, R.sup.3 or R.sup.4 ; and wherein R.sup.1 and R.sup.2 or R.sup.3 and R.sup.4 may be joined as part of a ring structure, at a dehydrogenation temperature in the presence of a catalyst comprising about 0.01 wt %-19.9 wt % Pd and about 0.01 wt %-19.9 wt % Cu on a carbon support, wherein the total amount of (Pd+Cu) on the support is about 0.02 wt % to 20 wt %, the weight ratio of Pd:Cu is about 1:1 to 10:1, and the carbon support has a surface area of at least about 100 m.sup.2 /g and is essentially free of reactive sulfur.
A selective dehydrogenation catalyst having the composition described supra is disclosed as is a method of preparing the same. This catalyst is highly selective for dehydrogenating a variety of substrates while minimizing the formation of unwanted hydrogenolysis by-products.
REFERENCES:
patent: 3592867 (1971-07-01), Pollitzer
patent: 3801651 (1975-04-01), Adolphen
patent: 3953526 (1975-04-01), Rosenthal
patent: 4024196 (1975-05-01), Krekeler
patent: 4060559 (1977-11-01), Goto et al.
patent: 4088702 (1978-05-01), Goto et al.
patent: 4154965 (1979-05-01), Meijer et al.
patent: 4160113 (1979-07-01), Muller et al.
patent: 4319054 (1982-03-01), Maki et al.
patent: 4419529 (1983-12-01), Steinmetz
patent: 4431848 (1984-02-01), Crew
Gustafson Bruce L.
Lentz Carl M.
Wehner Paul S.
Eastman Kodak Company
Heath, Jr. William P.
Lone Werren B.
Reiter S. E.
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