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Issue 3, 2003
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Organoruthenium(II) and (III) amidinates, (η5-C5Me5)Ru(η-amidinate) and (η5-C5Me5)RuCl(η-amidinate), as unique redox catalysts for the intramolecular Kharasch reactions: Facile access to a pyrrolizidine alkaloid skeleton under mild conditions

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Abstract

A novel organoruthenium(III) amidinate, (η5-C5Me5)RuCl(η-iPrN[double bond, length as m-dash]C(Me)NiPr) (2), has been prepared by oxidation of organoruthenium amidinate, (η5-C5Me5)Ru(η-iPrN[double bond, length as m-dash]C(Me)NiPr) (1), by organic chlorides; both 1 and 2 are found to be good catalysts for atom-transfer cyclization of N-allyltrichloroacetamides which are useful for successful preparation of a pyrrolizidine alkaloid skeleton under mild conditions.

Graphical abstract: Organoruthenium(ii) and (iii) amidinates, (η5-C5Me5)Ru(η-amidinate) and (η5-C5Me5)RuCl(η-amidinate), as unique redox catalysts for the intramolecular Kharasch reactions: Facile access to a pyrrolizidine alkaloid skeleton under mild conditions

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Publication details

The article was received on 25 Sep 2002, accepted on 13 Dec 2002 and first published on 14 Jan 2003


Article type: Communication
DOI: 10.1039/B209369C
Citation: Chem. Commun., 2003,0, 442-443
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    Organoruthenium(II) and (III) amidinates, (η5-C5Me5)Ru(η-amidinate) and (η5-C5Me5)RuCl(η-amidinate), as unique redox catalysts for the intramolecular Kharasch reactions: Facile access to a pyrrolizidine alkaloid skeleton under mild conditions

    H. Nagashima, M. Gondo, S. Masuda, H. Kondo, Y. Yamaguchi and K. Matsubara, Chem. Commun., 2003, 0, 442
    DOI: 10.1039/B209369C

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