New Entry to a Three-Component Pyrimidine Synthesis by TMS−Ynones via Sonogashira Coupling
作者:Alexei S. Karpov、Thomas J. J. Müller
DOI:10.1021/ol035212q
日期:2003.9.1
synthesized in an atom-economical fashion by coupling (het)aroyl chlorides and (TMS)-acetylene with only one equiv (!) of triethylamine under Sonogashira conditions. This mild ynone synthesis is also a suitable entry to 2,4-disubstituted pyrimidines in the sense of a one-pot three-component reaction, i.e., a coupling-addition-cyclocondensation sequence.