Acetone, hexane, dichloromethane, chloroform, ethyl acetate ... C and added dropwise to the reaction mixture, maintaining this temperature for 1 h. After this period, the temperature was raised to ...
Tetrahydrofuran (THF) (Wako Chemical, Osaka, Japan, 99%) and pyridine (Kanto Chemical, Tokyo, Japan, 99.5%) were distilled over sodium wire before use. Other materials were used without any ...