Pd-catalysed cross coupling of terminal alkynes to diynes in the absence of a stoichiometric additive |
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Authors: | Fairlamb Ian J S Bäuerlein Patrick S Marrison Lester R Dickinson Julia M |
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Affiliation: | Department of Chemistry, University of York, Heslington, York, UK YO10 5DD. ijsfl@york.ac.uk |
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Abstract: | An efficient, room temperature procedure for the cross-coupling of a range of terminal alkynes, using standard Sonogashira cross-coupling conditions (Pd/Cu) is presented. At higher reaction temperatures, head-to-tail or head-to-head dimerisation affords 1,3- and 1,4-disubstituted enynes, respectively as minor products. |
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