Rapid and Efficient Ultrasound-Assisted Method for the Synthesis of 2-Thioxo-2 H-thiopyran and 2-Amino-6-thioxodihydropyridine Derivatives
Lin Wei, Zheng Yongxiang, Huang Zhibin, Shi Daqing
Chin. J. Org. Chem. . 2017, (2): 508 -513 .  DOI: 10.6023/cjoc201608017