Author/Authors :
Bigi، نويسنده , , Franca and Conforti، نويسنده , , Maria Lina and Maggi، نويسنده , , Raimondo and Mazzacani، نويسنده , , Alessandro A. Sartori، نويسنده , , Giovanni، نويسنده ,
Abstract :
ortho-Regioselective de-tert-butylation of poly-tert-butylphenols is performed by treatment with montmorillonite KSF as a cheap, green and reusable catalyst. The procedure can be utilised for converting an equimolecular mixture of 2,4-di-tert-butylphenol and phenol into the more precious 4-tert-butylphenol (77% yield, 93% selectivity).