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

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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Details

Item type:	Article
Journal or Publication Title:	Journal of Organometallic Chemistry
Publisher:	Elsevier
Volume:	553
Number of Issue or Book Chapter:	1-2
Page Range:	pp. 511-516
Date:	25 February 1998
Institutions:	Chemistry and Pharmacy > Institut für Anorganische Chemie > Chair Prof. Dr. Manfred Scheer
Identification Number:	Value Type 10.1016/S0022-328X(97)00641-4 DOI
Keywords:	Supermesitylphosphaalkyne; Tungsten complexes; Dimerisation; Phosphinidene complexes; C–H-Activation
Dewey Decimal Classification:	500 Science > 540 Chemistry & allied sciences
Status:	Published
Refereed:	Unknown
Created at the University of Regensburg:	Unknown
Item ID:	15486

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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 ...

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 ‘head-to-tail' dimerisation of the former phosphaalkynes 1 to give a novel phosphinidene complex containing an indanyl substituent formed via C–H-activation.

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Metadata last modified: 03 Jun 2018 15:42

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