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Olefin cyclopropanation reactions catalysed by novel ruthenacarborane clusters

✍ Scribed by A. Demonceau; E. Saive; Y. de Froidmont; A.F. Noels; A.J. Hubert; I.T. Chizhevsky; I.A. Lobanova; V.I. Bregadze


Book ID
103405028
Publisher
Elsevier Science
Year
1992
Tongue
French
Weight
232 KB
Volume
33
Category
Article
ISSN
0040-4039

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πŸ“œ SIMILAR VOLUMES


Olefin cyclopropanation catalysed by hal
✍ Oscar Tutusaus; SΓ©bastien Delfosse; Albert Demonceau; Alfred F Noels; Rosario NΓΊ πŸ“‚ Article πŸ“… 2002 πŸ› Elsevier Science 🌐 French βš– 187 KB

Ruthenium complexes of the type [RuX(Cp%)(PPh 3 ) 2 ] (X=Cl and H; Cp%=Cp, Cp\*, indenyl, and carboranyl) efficiently catalyse olefin cyclopropanation with diazoesters, and the cis/trans stereoselectivity of the resulting cyclopropanes strongly depends on the Cp% ligand. With [RuCl(Cp\*)(PAr 3 ) 2 ]

Olefin cyclopropanation catalysed by bis
✍ Dominique Jan; FranΓ§ois Simal; Albert Demonceau; Alfred F. Noels; Konstantin A. πŸ“‚ Article πŸ“… 1999 πŸ› Elsevier Science 🌐 French βš– 282 KB

Bis(imido) chromium(VI) complexes are efficient catalysts for promoting the cyclopropanation of activated monosubstituted olefins with ethyl diazoacetate. 2,2'-Disubstituted activated olefins and non-activated ~-and cyclo-olefins, however, are much less reactive.

Olefin cyclopropanation catalysed by nov
✍ FranΓ§ois Simal; Dominique Jan; Albert Demonceau; Alfred F. Noels πŸ“‚ Article πŸ“… 1999 πŸ› Elsevier Science 🌐 French βš– 268 KB

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. Compa