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Please use this identifier to cite or link to this item: http://dspace.library.iitb.ac.in/jspui/handle/10054/11709

Title: Di-, tetra- and polynuclear Rh(I) complexes containing phenylene-1,4-diaminotetra(phosphonite), p-C(6)H(4)[N{P(OC(6)H(4)OMe-o)(2)}(2)](2) and their catalytic investigation towards transfer hydrogenation reactions
Authors: GANESAMOORTHY, C
BALAKRISHNA, MS
MAGUE, JT
Keywords: transition-metal chemistry
cross-coupling reactions
asymmetric transfer hydrogenation
coordination polymers
bimetallic hydroformylation
homogeneous hydrogenation
molecular architecture
high regioselectivity
dimetallic complexes
rhodium(i) complexes
Issue Date: 2009
Publisher: ROYAL SOC CHEMISTRY
Citation: DALTON TRANSACTIONS, (11), 1984-1990
Abstract: The reactions of phenylene-1,4-diaminotetra(phosphonite), p-C(6)H(4)[N{P(OC(6)H(4)OMe-o)(2)}(2)](2) (P(2)N(Ph)NP(2)) (1) with [Rh(COD)Cl](2) in 1 : 2 and 1 : 1 molar ratio produce tetra- and polymetallic chelate complexes, [Rh(4)(COD)(2)(mu-Cl)(4)(P(2)N(Ph)NP(2))] (2) and[Rh(2)(mu-Cl)(2)(P(2)N(Ph)NP(2))](n) (3), respectively. Similar reaction of 1 with [Rh(COD)Cl](2) in dichloromethane-acetonitrile mixture furnishes a dinuclear complex, [Rh(2)Cl(2)(CH(3)CN)(2)(P(2)N(Ph) NP(2))] (4). The reaction of 3 or 4 with CO affords a dinuclear carbonyl derivative, [Rh(2)Cl(2)(CO)(2)(P(2)N(Ph)NP(2))] (5). Treatment of 4 with 2 equivalents of pyrazine or 4,4'-bipyridine produce one-dimensional Rh(I) coordination polymers, [Rh(2)Cl(2)(C(4)H(4)N(2))(P(2)N(Ph) NP(2))](n) (6) and [Rh(2)Cl(2)(C(10)H(8)N(2))(P(2)N(Ph) NP(2))](n) (7) in quantitative yields. The catalytic activity of RhI complexes 2-7 have been investigated in transfer hydrogenation reactions.
URI: http://dx.doi.org/10.1039/b815849e
http://dspace.library.iitb.ac.in/xmlui/handle/10054/11709
http://hdl.handle.net/10054/11709
ISSN: 1477-9226
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