1. Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, Key Laboratory for Green Organic Synthesis and Application of Hunan Province, College of Chemistry, Xiangtan University, Xiangtan 411105, China
2. College of Chemistry and Materials Engineering, Huaihua University, Huaihua 418000, PR China
3. School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, 453007, P. R. China