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Synlett 2007(1): 0043-0046
DOI: 10.1055/s-2006-958443
DOI: 10.1055/s-2006-958443
LETTER
© Georg Thieme Verlag Stuttgart · New York
Synthesis of 5-Aroyldihydropyrimidinones via Liebeskind-Srogl Thiol Ester-Boronic Acid Cross-Couplings
Further Information
Received
6 August 2006
Publication Date:
20 December 2006 (online)
Publication History
Publication Date:
20 December 2006 (online)
Abstract
A novel and efficient two-step synthesis of 5-aroyl-3,4-dihydropyrimidin-2-ones is reported. These privileged ketone structures are readily generated by microwave-assisted Liebeskind-Srogl-type coupling of boronic acids with the corresponding pyrimidone thiol esters. The thiol esters themselves are easily prepared using Biginelli multicomponent chemistry.
Key words
transition metals - cross-coupling - catalysis - ketones - heterocycles
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References and Notes
For base-catalyzed Suzuki reactions of 3-bromophenyl-DHPMs with boronic acids, see ref. 12e.