An Efficient Synthesis of 2,3-Dihydrothiophene Derivatives from Four-Component Reactions under Catalyst-Free Conditions
Zhang Jinpeng, Gao Yanian, Chen Ming, Jiang Ling, Xia Sheng, Rong Liangce
Chin. J. Org. Chem. . 2014, (9): 1895 -1899 .  DOI: 10.6023/cjoc201404009