7440-05-3 Are organotin reagents derived from bis(trimethylsilyl)picoline suitable precursors for the preparation of cyclometallated complexes?

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The organotin reagents [2-PyC(SiMe3)2SnR3] (R = Me, nBu) were prepared in good yields from the reaction between the lithium salt of 2-bis(trimethylsilyl)picoline and the corresponding trialkyltin chlorides. Reactions of these organotin reagents were carried out with various Pd and Pt complexes including [MCl2(cod)] and [MCl 2(PhCN)2] (M = Pd, Pt). The results show that a Me group is transferred to the metal atom, rather than the 2-bis(trimethylsilyl)picolyl group. The mechanism for this reaction is discussed and reasons why Me group transfer occurs based on DFT computed structural data are given. https://www.lookchem.com/CASDataBase_7440-05-3.htm

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1023-17-2 Syntheses, structures, and catalytic activity in Friedel–Crafts acylations of substituted tetramethylcyclopentadienyl molybdenum carbonyl complexes

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