Process for alkane group dehydrogenation with organometallic catalyst
Abstract
An improved process is described for the catalytic dehydrogenation of organic molecules having a ##STR1## group to produce a ##STR2## group. The organic molecules are: ##STR3## wherein: A.sup.1, A.sup.2, A.sup.3, and A.sup.4 are each independently P, As or N: E.sup.2 is independently C or N; E.sup.3 is independently C, Si or Ge; E.sup.4 is independently C, Si, or Ge; and E.sup.5 is independently C, Si or Ge; M.sup.1, M.sup.2, M.sup.3, and M.sup.4 each is a metal atom independently selected from the group consisting of ruthenium, rhodium, palladium, osmium, iridium and platinum; Q.sup.1, Q.sup.2, Q.sup.3, and Q.sup.4 are each independently a direct bond, --CH.sub.2 --, --CH.sub.2 CH.sub.2 --, or CH.dbd.CH--; in structure I, structure II or structure IV, R.sup.1, R.sup.2, R.sup.3, and R.sup.4 are each independently selected from alkyl, alkenyl, cycloalkyl, and aryl, or R.sup.1 and R.sup.2 together and R.sup.3 and R.sup.4 together form a ring structure having from 4 to 10 carbon atoms, or in structure III, R.sup.5, R.sup.6, R.sup.7, and R.sup.8 are each independently selected from alkyl, alkenyl, cycloalkyl, and aryl, or R.sup.5 and R.sup.6 together and R.sup.7 and R.sup.8 together form a ring structure having from 4 to 10 carbon atoms, at a temperature of between about 100.degree.more »
- Inventors:
-
- (Goleta, CA)
- (Kailua, HI)
- Issue Date:
- Research Org.:
- University of Hawaii
- OSTI Identifier:
- 871704
- Patent Number(s):
- 5780701
- Assignee:
- Regents of University of California (Oakland, CA); University of Hawaii (Honolulu, HI) GFO
- DOE Contract Number:
- FC36-94AL85804
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- process; alkane; dehydrogenation; organometallic; catalyst; improved; described; catalytic; organic; molecules; str1; produce; str2; str3; independently; metal; atom; selected; consisting; ruthenium; rhodium; palladium; osmium; iridium; platinum; direct; bond; -ch; dbd; ch-; structure; ii; alkyl; alkenyl; cycloalkyl; aryl; form; 10; carbon; atoms; iii; temperature; 100; degree; 250; 300; days; absence; surprisingly; stable; complex; ligand; comprising; performed; 200; increased; turnover; stable catalyst; organic molecules; metal atom; independently selected; improved process; carbon atoms; carbon atom; metallic catalyst; organic ligand; organometallic catalyst; organic molecule; ligand comprising; /585/999/
Citation Formats
Kaska, William C., and Jensen, Craig M. Process for alkane group dehydrogenation with organometallic catalyst. United States: N. p., 1998.
Web.
Kaska, William C., & Jensen, Craig M. Process for alkane group dehydrogenation with organometallic catalyst. United States.
Kaska, William C., and Jensen, Craig M. Thu .
"Process for alkane group dehydrogenation with organometallic catalyst". United States. https://www.osti.gov/servlets/purl/871704.
@article{osti_871704,
title = {Process for alkane group dehydrogenation with organometallic catalyst},
author = {Kaska, William C. and Jensen, Craig M.},
abstractNote = {An improved process is described for the catalytic dehydrogenation of organic molecules having a ##STR1## group to produce a ##STR2## group. The organic molecules are: ##STR3## wherein: A.sup.1, A.sup.2, A.sup.3, and A.sup.4 are each independently P, As or N: E.sup.2 is independently C or N; E.sup.3 is independently C, Si or Ge; E.sup.4 is independently C, Si, or Ge; and E.sup.5 is independently C, Si or Ge; M.sup.1, M.sup.2, M.sup.3, and M.sup.4 each is a metal atom independently selected from the group consisting of ruthenium, rhodium, palladium, osmium, iridium and platinum; Q.sup.1, Q.sup.2, Q.sup.3, and Q.sup.4 are each independently a direct bond, --CH.sub.2 --, --CH.sub.2 CH.sub.2 --, or CH.dbd.CH--; in structure I, structure II or structure IV, R.sup.1, R.sup.2, R.sup.3, and R.sup.4 are each independently selected from alkyl, alkenyl, cycloalkyl, and aryl, or R.sup.1 and R.sup.2 together and R.sup.3 and R.sup.4 together form a ring structure having from 4 to 10 carbon atoms, or in structure III, R.sup.5, R.sup.6, R.sup.7, and R.sup.8 are each independently selected from alkyl, alkenyl, cycloalkyl, and aryl, or R.sup.5 and R.sup.6 together and R.sup.7 and R.sup.8 together form a ring structure having from 4 to 10 carbon atoms, at a temperature of between about 100.degree. and 250.degree. C. for between about 1 hr and 300 days in the absence of N.sub.2. 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.degree. C., and has increased turnover.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1998},
month = {1}
}