Ruthenium carbonyl complexes with alpha-substituted oxime derivatives of terpenes as ligands

Ruthenium carbonyl complexes with alpha-substituted oxime derivatives of terpenes as ligands Full article

Journal

Russian Chemical Bulletin
ISSN: 1066-5285 , E-ISSN: 1573-9171

Output data

Year: 2009, Volume: 58, Number: 7, Pages: 1371-1382 Pages count : 12 DOI: 10.1007/s11172-009-0183-3

Tags

ruthenium; carbonyl complexes; terpenoids; oxime; ligans; stereochemical non-rigidity; X-ray analysis

Authors

Kirin V.P. ¹ , Prikhod'ko I.Yu. ¹ , Maksakov V.A. ¹ , Virovets A.V. ¹ , Agafontsev A.M. ² , Golovin B.A. ³

Affiliations

1	(Данные Web of science) Russian Acad Sci, Siberian Branch, AV Nikolaev Inst Inorgan Chem, Novosibirsk 630090, Russia
2	(Данные Web of science) Russian Acad Sci, Siberian Branch, NN Vorozhtsov Inst Organ Chem, Novosibirsk 630090, Russia
3	(Данные Web of science) Novosibirsk State Univ, Novosibirsk 630090, Russia

The reactions of Ru-3(CO)(12) with oximes of alpha-substituted caran-4-one, lemonen-5- and pinan-3-one derivatives were studied. The reactions at elevated temperatures yield binu-clear complexes Ru-2(CO)(4)L-2, with two ruthenium atoms bridging two terpenoid ligands (L) through the oxime groups and coordinated additionally to a nitrogen or sulfur atom of the NR2 or SR groups respectively. The reactions carried out at room temperature in the presense of Me3NO yield trinuclear complexes Ru-3(CO)(8)L-2 with analogous coordination of the terpenoid ligands. In a solution at room temperature these clusters readily transform to binuclear complexes. The NMR spectroscopy shows the stereochemical nonrigidity of the complexes with the S-CH2-Ph fragment: at room temperature in a solution the benzyl radical undergoes slow rotation about the S-C bond and a change of the conformation of carane and pinane carbocycles occurs more rapidly. The reactions with pinane and carane derivatives are stereospecific yielding only one of the possible diastereoisomers. More flexible limonene derivative form both diastereoisomers.

Kirin V.P. , Prikhod'ko I.Y. , Maksakov V.A. , Virovets A.V. , Agafontsev A.M. , Golovin B.A.
Ruthenium carbonyl complexes with alpha-substituted oxime derivatives of terpenes as ligands
Russian Chemical Bulletin. 2009. V.58. N7. P.1371-1382. DOI: 10.1007/s11172-009-0183-3 WOS Scopus РИНЦ

Published print:	Jul 1, 2009
Published online:	May 27, 2010

Web of science	WOS:000278121700007
Scopus	2-s2.0-77955760106
Elibrary	15296633
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