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2 results on '"Radacki, Krzysztof"'

1. Oxidation, Coordination, and Nickel‐Mediated Deconstruction of a Highly Electron‐Rich Diboron Analogue of 1,3,5‐Hexatriene.

Author

Hermann, Alexander, Fantuzzi, Felipe, Arrowsmith, Merle, Zorn, Theresa, Krummenacher, Ivo, Ritschel, Benedikt, Radacki, Krzysztof, Engels, Bernd, and Braunschweig, Holger

Subjects
*DECONSTRUCTION, *OXIDATION, *NICKEL, *PLATINUM, *CARBENES
Abstract

The reductive coupling of an N‐heterocyclic carbene (NHC) stabilized (dibromo)vinylborane yields a 1,2‐divinyldiborene, which, although isoelectronic to a 1,3,5‐triene, displays no extended π conjugation because of twisting of the C2B2C2 chain. While this divinyldiborene coordinates to copper(I) and platinum(0) in an η2‐B2 and η4‐C2B2 fashion, respectively, it undergoes a complex rearrangement to an η4‐1,3‐diborete upon complexation with nickel(0). [ABSTRACT FROM AUTHOR]

Published
2020
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2. Oxidation, Coordination, and Nickel‐Mediated Deconstruction of a Highly Electron‐Rich Diboron Analogue of 1,3,5‐Hexatriene.

Author

Hermann, Alexander, Fantuzzi, Felipe, Arrowsmith, Merle, Zorn, Theresa, Krummenacher, Ivo, Ritschel, Benedikt, Radacki, Krzysztof, Engels, Bernd, and Braunschweig, Holger

Subjects
*DECONSTRUCTION, *OXIDATION, *NICKEL, *PLATINUM, *CARBENES
Abstract

The reductive coupling of an N‐heterocyclic carbene (NHC) stabilized (dibromo)vinylborane yields a 1,2‐divinyldiborene, which, although isoelectronic to a 1,3,5‐triene, displays no extended π conjugation because of twisting of the C2B2C2 chain. While this divinyldiborene coordinates to copper(I) and platinum(0) in an η2‐B2 and η4‐C2B2 fashion, respectively, it undergoes a complex rearrangement to an η4‐1,3‐diborete upon complexation with nickel(0). [ABSTRACT FROM AUTHOR]

Published
2020
Full Text
View/download PDF

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