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- W1997710634 abstract "The tungsten butatrienylidenes [cis-W(CO)(dppe)2{C═C═C═C(R)(SnMe3)}] (R = SnMe3 (2) and SiMe3 (3); dppe = 1,2-bis(diphenylphosphinoethane)) were prepared from the reactions of [trans-W(CO)(N2)(dppe)2] (1) and the respective butadiynes displaying a 1,4-shift of the respective SnMe3 groups along the butadiyne chains. Stannyl deprotection of 2 with NBu4F·3H2O led to the anionic butadiyne derivative [trans-W(CO)(dppe)2(C≡CC≡CH)][NBu4] (10). The reaction of 1 with stannylated acetylenes gave the vinylidene derivatives [cis-W(CO)(dppe)2{C═C(SnMe3)(R)}] (R = Ph (5) or SnMe3 (6)), which lost a SnMe3 group, yielding W(I) acetylides of the type [trans-W(CO)(dppe)2(C≡CR)] (R = Ph (7), SnMe3 (8), and SiMe3 (9)). They were studied by cyclic voltammetry and EPR spectroscopy." @default.
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- W1997710634 date "2010-11-15" @default.
- W1997710634 modified "2023-09-29" @default.
- W1997710634 title "[W(CO)(dppe)2] Cumulenylidene and Acetylide Complexes Accessed via Stannylated Acetylenes and Butadiynes" @default.
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- W1997710634 doi "https://doi.org/10.1021/om100702x" @default.
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