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Pd-catalysed conjugate addition of arylboronic acids to α,β-unsaturated ketones under microwave irradiation

  • Viera Poláčková EMAIL logo , Vladimír Bariak , Radovan Šebesta and Štefan Toma
Published/Copyright: March 16, 2011
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Abstract

The Pd-catalysed conjugate addition of arylboronic acids to α,β-unsaturated cyclic ketones was studied under controlled microwave irradiation conditions. A variety of catalysts, bases and solvents was explored in order to achieve optimum yields in the shortest possible reaction time. Under optimised conditions (Pd(OAc)2/2,2′-bipyridine and KF in a mixture of toluene, water, and acetic acid and 10 min microwave irradiation), a range of arylboronic acids was successfully added to several cyclic enones. With chiral phosphane ligands, a promising enantioselectivity was obtained (85 % ee).

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Published Online: 2011-3-16
Published in Print: 2011-6-1

© 2011 Institute of Chemistry, Slovak Academy of Sciences

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