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

DOI to cite this document:: 10.5283/epub.15102

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

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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)(5)W(X2PBH2 center dot NMe3)] (2a: X = Cl, 2b: X = Br) and [(CO) W-5(X2AsBH2 center dot NMe3)] (3a: X = Cl, 3b: X = Br), respectively, are obtained. The new products were ...