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 Title: |
US5780701:
Process for alkane group dehydrogenation with organometallic catalyst
[ Derwent Title ]
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| Country: |
US United States of America
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| Inventor: |
Kaska, William C.; Goleta, CA
Jensen, Craig M.; Kailua, HI
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| Assignee: |
The Regents of the University of California, Oakland, CA
University of Hawaii, Honolulu, HI
other patents from UNIVERSITY OF CALIFORNIA, THE REGENTS OF (599425) (approx. 4,840)
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| Published / Filed: |
1998-07-14
/ 1996-07-26
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| Application Number: |
US1996000687717
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| IPC Code: |
Advanced:
B01J 31/18;
B01J 31/24;
C07B 35/04;
C07C 5/333;
C07F 15/00;
Core:
B01J 31/16;
C07B 35/00;
C07C 5/00;
more...
IPC-7:
C07C 5/327;
C07C 5/333;
C07C 5/373;
C07F 15/02;
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| ECLA Code: |
B01J31/18; B01J31/24; C07B35/04; C07C5/333; C07F15/00N3; C07F15/00N6; M07C531/22; L01J531/02F2B; L01J531/82B; L01J531/82D; L01J531/82F; L01J531/82H; L01J531/82J; L01J531/82L;
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| U.S. Class: |
Current:
585/654;
556/013;
556/014;
556/021;
556/022;
556/023;
556/136;
556/137;
556/138;
556/140;
585/660;
Original:
585/654;
585/660;
556/013;
556/014;
556/021;
556/022;
556/023;
556/136;
556/137;
556/138;
556/140;
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| Field of Search: |
585/659,660
556/014,23,138,140,13,21,22,136,137
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| Government Interest: |
ORIGIN OF THE INVENTION
This invention was completed with funding in part from the U.S. Department of Energy (Hydrogen Program), Contract No. DE-FC36-94AL85804. The U.S. Government has certain rights in this invention.
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| Priority Number: |
| 1996-07-26 |
US1996000687717 |
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| Abstract: |
An improved process is described for the catalytic dehydrogenation of organic molecules having a <IMAGE> group to produce a <IMAGE> group. The organic molecules are: <IMAGE> I <IMAGE> II <IMAGE> III <IMAGE> IV wherein: A1, A2, A3, and A4 are each independently P, As or N: E2 is independently C or N; E3 is independently C, Si or Ge; E4 is independently C, Si, or Ge; and E5 is independently C, Si or Ge; M1, M2, M3, and M4 each is a metal atom independently selected from the group consisting of ruthenium, rhodium, palladium, osmium, iridium and platinum; Q1, Q2, Q3, and Q4 are each independently a direct bond, -CH2-, -CH2CH2-, or CH=CH-; in structure I, structure II or structure IV, R1, R2, R3, and R4 are each independently selected from alkyl, alkenyl, cycloalkyl, and aryl, or R1 and R2 together and R3 and R4 together form a ring structure having from 4 to 10 carbon atoms, or in structure III, R5, R6, R7, and R8 are each independently selected from alkyl, alkenyl, cycloalkyl, and aryl, or R5 and R6 together and R7 and R8 together form a ring structure having from 4 to 10 carbon atoms, at a temperature of between about 100 DEG and 250 DEG C. for between about 1 hr and 300 days in the absence of N2. The surprisingly stable catalyst is a complex of an organic ligand comprising H, C, Si, N, P atoms, and a platinum group metal. The dehydrogenation is performed between about 100 to 200 DEG C., and has increased turnover.
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| Attorney, Agent or Firm: |
Peters, Verny, Jones & Biksa L.L.P. ;
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| Primary / Asst. Examiners: |
Caldarola, Glenn; Pasterczyk, J.
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| Maintenance Status: |
E2 Expired Check current status
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| INPADOC Legal Status: |
Show legal status actions
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| Family: |
None
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First Claim:
Show all 20 claims |
We claim:
1. An improved process to remove hydrogen from an allyl-containing organic compound having at least one [Figure] group to produce an alkene compound having at least one [Figure] group, and hydrogen which process comprises: (a) contacting the alkyl-containing compound with a soluble complex of structure A, which structure is selected from structure I: [Figure] wherein: A1, A2, A3, and A4 are each independently P, As or N;
- E2 is independently C or N;
- E3 is independently C, Si, or Ge;
- E4 is independently C, Si, or Ge;
- and E5 is independently C, Si or Ge,
- M1, M2, M3, and M4 each is a metal atom independently selected from the group consisting of ruthenium, rhodium, palladium, osmium, iridium and platinum;
- Q1, Q2, Q3, and Q4 are each independently a direct bond, --CH2 --, --CH2 CH2--,--CH=CH--;
- in structure I, structure II or structure IV, R1, R2, R3, and R4 are each independently selected from alkyl, alkenyl, cycloalkyl, and aryl, or R1 and R2 together and R3 and R4 together form a ring structure having from 4 to 10 carbon atoms, or
- in structure III, R5, R6, R7, and R8 are each independently selected from alkyl, alkenyl, cycloalkyl, and aryl, or R5 and R6 together and R7 and R8 together form a ring structure having from 4 to 10 carbon atoms;
- at a temperature of between about 100° and 250° C. for between about 1 hr and 300 days in the absence of N2.
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| Background / Summary: |
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| Drawing Descriptions: |
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| Description: |
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| Forward References: |
Show 8 U.S. patent(s) that reference this one
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| Foreign References: |
None
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| Other Abstract Info: |
CHEMABS 129(11)136616V
CHEMABS 129(11)136616V
DERABS C1998-413172
DERABS C1998-413172
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| Other References: |
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[ISI abstract]
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[ISI abstract]
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[ISI abstract]
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