139142-46-4Relevant academic research and scientific papers
OXIDATIVE ADDITION OF PHOSPHOLES AND PHOSPHABENZENE INTO TRIOSMIUM AND TRIRUTHENIUM CLUSTERS. RING OPENING VERSUS C-H BOND CLEAVAGE
Arce, Alejandro J.,Sanctis, Ysaura De,Deeming, Antony J.,Manzur, Jorge,Powell, Nicholas I.
, p. 33 - 36 (2007/10/02)
The five-membered heterocycles compounds 3,4-dimethyl-1-phenylphosphole (PhPCH=CMeCMe=CH) and 1-phenylphosphole (PhPCH=CHCH=CH) react with the clusters or to give the simple substitution products (x = 1 or 2), in which the phospholes are coordinated as tertiary phosphines through the phosphorus atoms.The six membered heterocyclic compounds phosphabenzene and 2-terbutylphosphabenzene react with or to give simple substitution products (x=1, or 2). and react with 2-terbutyl-phosphabenzene to give the nonacarbonyl species tBu>)> and tBu>)> respectively, where a C-H bond cleavage has occured and the phosphorus atom is coordinated to a metal center, even though the clusters show different geometries, which are discussed.
Ring Opening versus Phenyl-Phosphorous Bond Clevage in incorporating a Phosphole into Triosmium Clusters
Deeming, Antony J.,Powell, Nicholas I.,Arce, Alejandro J.,Sanctis, Ysaura De,Manzur, Jorge
, p. 3381 - 3386 (2007/10/02)
The five-membered heterocyclic compound 3,4-dimethyl-1-phenylphosphole (PhPCH=CMeCMe=CH) reacts with or to give the simple substitution products 12-x(PhPC4H2Me2)x> (x = 1 or 2) in which the phospholes are co-ordinated as tertiary phosphines through the phosphorous atoms.Thermolysis of these compounds gives decarboxylation compounds containing modified phosphole ligands.Phosphorous-carbon bonds either to the phenyl group or within the five-membered ring have been cleaved.The X-ray structure of the main product 1 shows that the organic μ3 ligand is a six-electron donor which is co-ordinated differently from the corresponding eight-electron donating ligand derived from 1-phenylphosphole in the cluster .There is evidence for the reversible generation of this alternative form, 3, of the methylated compound 1 by photolysis.A minor product of the thermolysis is the hydrido cluster CH=CMeCMe=CH)(μ3-C6H4)(CO)9> 2 which contains a five-membered phospholyl ring and an o-phenylene (benzyne) ligand which originated from the phenyl group.The X-ray structure shows that the phospholyl ligand bridges two osmium atoms as a phosphido ligand through the phosphorous atom.The major and minor products, 1 and 2, are both derived by C-P bond cleavage, either in the phosphole ring or to the phenyl substituent respectively.
