Comparison between homogeneous and sol-gel-encapsulated rhodium-quaternary ammonium ion pair catalysts

被引：39

作者：

Blum, J ^{[1
]}

Rosenfeld, A ^{[1
]}

Polak, N ^{[1
]}

Israelson, O ^{[1
]}

Schumann, H ^{[1
]}

Avnir, D ^{[1
]}

机构：

[1] TECH UNIV BERLIN, INST ANORGAN & ANALYT CHEM, D-10623 BERLIN, GERMANY

来源：

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL | 1996年 / 107卷 / 1-3期

关键词：

immobilized catalysts; hydroformylation; hydrogenation; rhodium; sol-gel;

D O I：

10.1016/1381-1169(95)00222-7

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The ion pairs RhCl3/Aliquat 336(R) and RhCl3/[Me(3)N(CH2)(3)Si(OMe)3]Cl were entrapped in SiO2 sol-gel matrices, and used as catalysts for isomerization of allylbenzene, disproportionation of 1,3-cyclohexadiene, hydrogenation of alkenes, alkynes, arenes, nitriles and nitro-compounds, and for hydroformylation of C-C double bonds. The immobilized ion pairs proved to be stable, leach-proof and recyclable. Occasionally the catalytic efficiency dropped upon recycling, owing to pore blockage but the activity could be restored by treatment with boiling water. The performances of the sol-gel-entrapped ion pairs were compared with those of the homogeneous RhCl3/Aliquat 336 catalyst. In most cases the immobilized catalysts proved superior to their homogeneous version.

引用

页码：217 / 223

页数：7

共 19 条

[1] DISPROPORTIONATION AND DEHYDROGENATION OF 1,3-CYCLOHEXADIENES IN THE PRESENCE OF RECYCLABLE RHCL3-QUATERNARY AMMONIUM SALT CATALYSTS
AMER, I
ORSHAV, V
BLUM, J
[J]. JOURNAL OF MOLECULAR CATALYSIS, 1988, 45 (02): : 207 - 214
[2] SELECTIVE C-C BOND HYDROGENATION IN UNSATURATED NITROCOMPOUNDS IN THE PRESENCE OF THE RHCL3-ALIQUAT-336 CATALYST SYSTEM
AMER, I
BRAVDO, T
BLUM, J
VOLLHARDT, KPC
[J]. TETRAHEDRON LETTERS, 1987, 28 (12) : 1321 - 1322
[3] HYDROGENATION OF ARENES BY THE RHCL3-ALIQUAT-336 CATALYST .2. REDUCTION OF NAPHTHALENE DERIVATIVES TO TETRALINS
AMER, I
AMER, H
BLUM, J
[J]. JOURNAL OF MOLECULAR CATALYSIS, 1986, 34 (02): : 221 - 228
[4] BARDIEH Y, 1994, J MOL CATAL, V90, P231
[5] THE VERSATILITY OF METAL HALIDE QUATERNARY AMMONIUM SALT CATALYSTS FOR ORGANIC PROCESSES - FROM HOMOGENEOUS TO GLASS-ENCAPSULATED ION-PAIRS
BLUM, J
[J]. RUSSIAN CHEMICAL BULLETIN, 1993, 42 (10) : 1619 - 1627
[6] ALKYNE HYDRATION PROMOTED BY RHCL3 AND QUATERNARY AMMONIUM-SALTS
BLUM, J
HUMINER, H
ALPER, H
[J]. JOURNAL OF MOLECULAR CATALYSIS, 1992, 75 (02): : 153 - 160
[7] SELECTIVE TRANSFER HYDROGENATION OF VARIOUS UNSATURATED FUNCTIONS BY POLYMETHYLHYDROSILOXANE IN THE PRESENCE OF A RECYCLABLE RHODIUM CATALYST
BLUM, J
PRIBAR, I
ALPER, H
[J]. JOURNAL OF MOLECULAR CATALYSIS, 1986, 37 (2-3): : 359 - 367
[8] BRACA G, 1975, ATOM ABSORPT NEWSL, V14, P39
[9] ANCHORING RHODIUM(I) ON BENZOYLTHIOUREA-FUNCTIONALIZED SILICA XEROGELS - PRODUCTION OF RECYCLABLE HYDROFORMYLATION CATALYSTS AND THE CRYSTAL-STRUCTURE OF THE MODEL-COMPOUND [RH(COD)(HBZTU)CL]
CAUZZI, D
LANFRANCHI, M
MARZOLINI, G
PREDIERI, G
TIRIPICCHIO, A
COSTA, M
ZANONI, R
[J]. JOURNAL OF ORGANOMETALLIC CHEMISTRY, 1995, 488 (1-2) : 115 - 125
[10] SYNTHESIS AND INCORPORATION OF 4-TRIETHOXYSILYL-1,2-BIS(DIPHENYLPHOSPHINO)BENZENE INTO SILICA-GEL AND SOLGEL POLYMERS - PREPARATION AND UTILIZATION OF RECYCLABLE CATALYSTS FOR ALKENE HYDROFORMYLATION AND METHANOL HOMOLOGATION
HARDEE, JR
TUNNEY, SE
FRYE, J
STILLE, JK
[J]. JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY, 1990, 28 (13) : 3669 - 3684

← 1 2 →