Solvent-free Synthesis of Thio-alkylxanthines from Alkylxanthines Using Microwave Irradiation
摘要:
An expeditious, solvent-free procedure for the conversion of the xanthine bases theophylline, 8-methyltheophylline, caffeine, and theobromine to the corresponding 6-thio and 2,6-dithio derivatives using Lawesson's reagent under microwave irradiation is proposed.