Efficient One-Pot Synthesis of 2,2-Dimethyl-2<i>H</i>-chromenes via Pd(II)-Catalyzed Coupling and SiO₂-Promoted Condensation of <i>o</i>-Halophenols with 2-Methyl-3-buten-2-ol

<div><p></p><p>An efficient synthesis of 2,2-dimethyl-2<i>H</i>-chromenes was accomplished by Pd(II)-catalyzed coupling and SiO₂-promoted condensation of <i>o</i>-halophenols with 2-methyl-3-buten-2-ol (1,1-dimethylallyl alcohol) in one pot. The method is very general and can be useful for the synthesis of some natural 2,2-dimethyl-2<i>H</i>-chromenes.</p>