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American Chemical Society, Organometallics, 25(26), p. 6346-6353, 2007

DOI: 10.1021/om700724c

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Simple palladacyclic and platinacyclic catalysts for the 1,4-conjugate addition of arylboronic acids and arylsiloxanes to enones

Journal article published in 2007 by Robin B. Bedford, Michael Betham, Jonathan P. H. Charmant, Mairi F. Haddow ORCID, A. Guy Orpen, Lukasz T. Pilarski, Simon J. Coles ORCID, Michael B. Hursthouse
This paper was not found in any repository; the policy of its publisher is unknown or unclear.
This paper was not found in any repository; the policy of its publisher is unknown or unclear.

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Abstract

range of palladacyclic, platinacyclic, and pincer-based catalysts have been tested for activity in 1,4-conjugate addition reactions. -Acidic palladacycles show excellent activity at room temperature in the reaction of enones with arylboronic acids and reasonable activity when the arylboronic acids are replaced by arylsiloxanes. The X-ray structures of three new palladium 3-"PCP"-pincer complexes are presented; surprisingly, these complexes show no activity, despite the fact that notionally related phosphine and carbene adducts of palladacycles do.