Efficient catalysts for telomerization of butadiene with amines
作者:Anne Grotevendt、Maribel Bartolome、David J. Nielsen、Anke Spannenberg、Ralf Jackstell、Kingsley J. Cavell、Luis A. Oro、Matthias Beller
DOI:10.1016/j.tetlet.2007.10.076
日期:2007.12
In situ-generated N-heterocyclic carbene (NHC) palladium catalysts and isolated NHC-palladium complexes have been tested for the telomerization reaction of 1,3-butadiene with primary and secondary amines. Superior catalyst activity (TON up to 400.000) and selectivity are obtained. Applying optimized conditions a variety of octa-2,7-dienylamines were prepared in high yield and excellent selectivity. (c) 2007 Elsevier Ltd. All rights reserved.