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Selective halogenation at the pnictogen atom in Lewis-acid/base-stabilised phosphanylboranes and arsanylboranes

Schwan, Karl-Christian ; Adolf, Ariane ; Vogel, Ulf ; Thoms, Christine ; Zabel, Manfred ; Timoshkin, Alexey Y. ; Scheer, Manfred
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Date of publication of this fulltext: 07 Jun 2010 12:20


Abstract

The halogenation of Lewis-acid/base-stabilised phosphanylboranes ( 1a) and arsanylboranes ( 1b) with CX4 (X = Cl, Br) leads selectively to the substitution of both protons at the pentel atom and the new compounds [(CO)5W(X2PBH2·NMe3)] ( 2a: X = Cl, 2b: X = Br) and [(CO)5W(X2AsBH2·NMe3)] ( 3a: X = Cl, 3b: X = Br), respectively, are obtained. The new products were comprehensively characterised by ...

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