Different reaction modes of supermesitylphosphaalkyne with [W(CO)5thf]-unusual C-H-activation forming an indanyl substituent

DOI to cite this document:: 10.5283/epub.15486

Kramkowski, Peter ; Scheer, Manfred ; Baum, Gerhard

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Date of publication of this fulltext: 21 Jun 2010 12:45

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Abstract

Treatment of the phosphaalkyne P6-point triple bond; length half of m-dashCAr′ 1 with [W(CO)5(thf)] leads to the complex [W(CO)2{η2-PCAr′)W(CO)5}2] 2 (Ar′=C6H2tBu3-2,4,6) with two side-on coordinated phosphaalkyne moieties. In the presence of equimolar amounts of [W2(OtBu)6], however, the formation of [W(CO)4P(R′)C(Ar′)P{W(CO)5}] 3 (R′=2,4-tBu2-7-Me2-indanyl) is observed. 3 is a product of a ...