About this Chemistry article
Olefin Cyclopropanation Catalysed by Novel Ruthenium-arene Complexes Containing Phosphines with Pendent Arenes by François Simal; Dominique Jan; Albert Demonceau; Alfred F. Noels is a Chemistry article available to read on EtoBox.
Ruthenium-arene complexes containing phosphines with pendent aryl groups [RuCI2(rl6-p-cymene) -(PCy2(CH2)3Ar)], Ar = C6H5 and 3,5-(CH3)2-C6H 3 (1 and 3), and the resulting chelating complexes [RuC12(PCy2-(CH2)3-'q6-Ar)] (2 and 4) mediate the cyclopropanation of olefins with ethyl diazoacetate. Comparison of the reactivity patterns of these complexes indicates that p-cymene disengagement is likely the key step in the reactions catalysed by non-chelating complexes 1 and 3.
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- Author
- François Simal; Dominique Jan; Albert Demonceau; Alfred F. Noels
- Publisher
- Elsevier Science; Elsevier ; Elsevier Ltd.; Elsevier BV (ISSN 0040-4039)
- Published
- 1999
- Language
- EN
- Field
- Chemistry (Physical Sciences)