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Synthesis, characterisation and catalytic investigation of a new type of PC(sp(3))P pincer Pd(II) complex

In English

Författare

Summary, in English

The diphosphine cis-1,3-bis[(di-tert-butylphosphino)methyl]cyclohexane (2) has been synthesised and its complexation in palladium chemistry has been investigated. Ligand 2 is capable of tricoordination, for instance as demonstrated by an X-ray crystal structure determination of the complex [Pd(2)I], and it is a rare example of a PC(sp(3))P pincer ligand. A catalytic study of the Heck reaction revealed that the bis-chelated complex [Pd(2)(CO2CF3)] is a highly active, air-stable precatalyst in the olefination of iodo- and bromo-benzenes. It is evident that, in comparison with the analogous aromatic PC(sp(2))P system, by switching the hybridisation of the central carbon donor atom from sp(2) to sp(3) improvement in terms of catalytic activity is achieved.

Publiceringsår

2002

Språk

Engelska

Sidor

1396-1400

Publikation/Tidskrift/Serie

Journal of the Chemical Society. Dalton Transactions

Issue

7

Dokumenttyp

Artikel i tidskrift

Förlag

Royal Society of Chemistry

Ämne

  • Inorganic Chemistry

Status

Published

ISBN/ISSN/Övrigt

  • ISSN: 1472-7773