Synthesis and Reactivity of an Aminocarbene Osmium Complex Formed by Double C–H Activation of a NCH 3  Unit | Zendy

Richter Birgit | Zendy; Werner Helmut | Zendy

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Synthesis and Reactivity of an Aminocarbene Osmium Complex Formed by Double C–H Activation of a NCH 3 Unit

Author(s) -

Richter Birgit,

Werner Helmut

Publication year - 2009

Publication title -

european journal of inorganic chemistry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.667

H-Index - 136

eISSN - 1099-0682

pISSN - 1434-1948

DOI - 10.1002/ejic.200900759

Subject(s) - chemistry , osmium , reactivity (psychology) , medicinal chemistry , double bond , stereochemistry , ligand (biochemistry) , phenylacetylene , chelation , ruthenium , catalysis , polymer chemistry , organic chemistry , medicine , biochemistry , alternative medicine , receptor , pathology

The reaction of [OsCl 2 (PPh 3 ) 3 ] ( 1 ) with i Pr 2 PCH 2 CH 2 NMe 2 in 2‐propanol under reflux affords the Fischer‐type aminocarbene complex cis , cis ‐[OsCl 2 {κ 2 ( C , P )‐CHN(CH 3 )CH 2 CH 2 P i Pr 2 }{κ 2 ( P , N )‐ i Pr 2 PCH 2 CH 2 NMe 2 }] ( 2 ) by double C–H activation of one NCH 3 group. While treatment of 2 with phenylacetylene leads to the vinylidene complex cis , trans ‐[OsCl 2 (C=CHPh){κ 2 ( C , P )‐CHN(CH 3 )CH 2 CH 2 P i Pr 2 }{κ( P )‐ i Pr 2 PCH 2 CH 2 NMe 2 }] ( 3 ) by partial opening of the P , N ‐chelate bond, the reaction of 2 with CO and CN t Bu gives rise to ionic compounds of type [OsCl(L){κ 2 ( C , P )‐CHN(CH 3 )CH 2 CH 2 P i Pr 2 }{κ 2 ( P , N )‐ i Pr 2 PCH 2 CH 2 OMe}]Cl ( 4 : L = CO, 5 : L = CN t Bu) by substitution of one chloro ligand. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2009)

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