Synthesis of 4-arylcoumarins via Cu-catalyzed hydroarylation with arylboronic acids
(Chemical Equation Presented) In the presence of 2-4 mol % of CuOAc, methyl phenylpropiolates having a MOM-protected hydroxy group at the ortho position underwent hydroarylation with various arylboronic acids in MeOH at ambient temperature, resulting in the formation of 4-arylcoumarins in high yields after the acidic workup. This method was effectively used for the synthesis of biologically active natural and artificial compounds.
Yamamoto, Yoshihiko,Kirai, Naohiro
supporting information; experimental part
p. 5513 - 5516
(2009/05/27)
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