Km. Kim et al., A CONVENIENT SYNTHESIS OF 2-ALKYL-2-METHYLTETRAHYDROFURANS FROM 4-METHYLALK-4-EN-1-OLS CATALYZED BY IODINE, Synthesis, (6), 1998, pp. 835-836
Cyclization of 4-methylalk-4-en-1-ols in the presence of a catalytic a
mount of iodine in dichloromethane gave exclusively 2-alkyl-2-methylte
trahydrofurans under mild conditions in high yields.