1.1: sodium hydroxide; N-benzyl-N,N,N-triethylammonium chloride / methanol; water / 0.5 h / |Reflux 1.2: 12 h / 40 °C 2.1: L-CSA*1H2O / toluene / 49 h / 20 - 50 °C / |Resolution of racemate 2.2: 6 h / |Resolution of racemate; |Reflux View Scheme
Sadhukhan, Arghya; Saravanan; Khan, Noor-Ul H.; Kureshy, Rukhsana I.; Abdi, Sayed H. R.; Bajaj, Hari C.
Journal of Organic Chemistry, 2012 , vol. 77, # 16 p. 7076 - 7080
