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Titolo:
Synthesis and x-ray structure of metalated rhodium(II) catalysts with a chiral phospholane
Autore:
Estevan, F; Krueger, P; Lahuerta, P; Moreno, E; Perez-Prieto, J; Sanau, M; Werner, H;
Indirizzi:
Univ Valencia, Fac Quim, Dept Quim Inorgan, E-46100 Valencia, Spain Univ Valencia Valencia Spain E-46100 im Inorgan, E-46100 Valencia, Spain Univ Wurzburg, Inst Anorgan Chem, D-97074 Wurzburg, Germany Univ WurzburgWurzburg Germany D-97074 n Chem, D-97074 Wurzburg, Germany Univ Valencia, Fac Farm, Dept Quim Organ, E-46100 Valencia, Spain Univ Valencia Valencia Spain E-46100 Quim Organ, E-46100 Valencia, Spain
Titolo Testata:
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
fascicolo: 1, , anno: 2001,
pagine: 105 - 109
SICI:
1434-1948(200101):1<105:SAXSOM>2.0.ZU;2-L
Fonte:
ISI
Lingua:
ENG
Soggetto:
BINUCLEAR DIRHODIUM COMPOUNDS; C-H INSERTION; INTRAMOLECULAR CYCLOPROPANATION; CARBENE TRANSFORMATIONS; MOLECULAR-STRUCTURE; CRYSTAL-STRUCTURE; ENANTIOCONTROL; PHOSPHINES; REACTIVITY; CLEAVAGE;
Keywords:
carbocycles; chirality; diazo compounds; P ligands; rhodium;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
32
Recensione:
Indirizzi per estratti:
Indirizzo: Lahuerta, P Univ Valencia, Fac Quim, Dept Quim Inorgan, Dr Moliner 50, E-46100 Valencia, Spain Univ Valencia Dr Moliner 50 Valencia Spain E-46100 cia, Spain
Citazione:
F. Estevan et al., "Synthesis and x-ray structure of metalated rhodium(II) catalysts with a chiral phospholane", EUR J INORG, (1), 2001, pp. 105-109

Abstract

The reaction of Rh-2(O2CR)(4) (R = CH3, CF3) with the chiral phosphane (2S,5S)-2,5-dimethyl-1-phcnylphospholane (PC* H), results in the formation of two diastereoisomers of Rh-2(O2CCR)(2)(PC*)(2), with (P) and (M) configuration. These can easily be isolated by chromatographic methods to obtain enantiomerically pure Rh-II compounds. Preliminary catalytic studies have shownthat they induce moderate asymmetry in the cyclization of 5-aryl-1-diazo-2-pentanones and 1-diazo-5-hexen-2-one. X-ray analysis of the (M) diastereoisomer with formula Rh-2(O2CCCH3)(2)(PC*)(2) is reported. The crystallographic parameters are as follows: space group P2(1)2(1)2 (orthorhombic) with a = 12.1347(11) Angstrom, b = 14.5870(13) Angstrom, c = 9.8171(9) Angstrom.

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Documento generato il 07/04/20 alle ore 22:32:24