First Gewald reaction ignited by sodium polysulfide: greener ultrasound-promoted synthesis of substituted 2-aminothiophenes in the absence of catalyst

Author： Liang Chengyuan   Lei Dong   Wang Xiuzhen   Zhang Qingqing   Yao Qizheng  

Publisher： Taylor & Francis Ltd

ISSN： 1741-5993

Source： Journal of Sulfur Chemistry, Vol.34, Iss.5, 2013-10, pp. : 458-463

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