Efficient One-Pot Synthesis of 3,3-Dimethyl-diphenyl-2,4-dioxa-8,10-diazaspiro[5.5]undecane-1,5-dione-9-thione Derivatives
Xu Zhaohui, Zhou Peng, Liu Deyong
Chin. J. Org. Chem. . 2016, (5): 1099 -1103 .  DOI: 10.6023/cjoc201510009