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2005
Polyphenylalkene derivatives
Q 0740
Palladium(II) Complexes with P,N- and C,N-Ligands as Catalysts for the Heck
— Phosphine-free palladacycles (I) are found to be efficient catalysts for the
11- 112 Reaction.
Heck reaction of bromide (III) with styrene, exhibiting similar activity to the best catalysts reported in literature. Upon addition of 2.5 mol/l water to the reaction mixture,
no influence on the outcome of the reaction is observed. In contrast, iminophosphine
complexes (II) give slightly lower conversions and yields than complexes (I) in the
absence of water, but a significant loss of activity occurs in the presence of water. —
(SCHULTZ, T.; SCHMEES, N.; PFALTZ*, A.; Appl. Organomet. Chem. 18 (2004)
11, 595-601; Dep. Chem., Univ. Basel, CH-4056 Basel, Switz.; Eng.) — Klein
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