Ts. Li et al., Montmorillonite clays catalysis IX: A mild and efficient method for removal of tetrahydropyranyl ethers, SYN COMMUN, 29(2), 1999, pp. 181-188
A variety of tetrahydropyranyl ethers of alcohols and phenols are easily re
moved in the presence of catalytic of amount of montmorillonite days in met
hanol at 4850 degrees C in excellent yield.