Efficient ZnBr2-catalyzed reactions of allylic alcohols with indoles, sulfamides and anilines under high-speed vibration milling conditions

Solvent-free reactions of allylic alcohols with various nucleophiles including indoles, sulfamides and anilines were efficiently achieved in the presence of 20% ZnBr2 under high-speed vibration milling conditions, and the products were obtained in good to excellent yields with the formation of water as the only byproduct.