Syntheses, structures and bioactivities of fluorine-containing phenylimino-thia(oxa)zolidine derivatives as agricultural bioregulators
                                
                                    
                                        作者:Xuhong Qian、Xiaoyong Xu、Zhibin Li、Zhong Li、Gonghua Song                                    
                                    
                                        DOI:10.1016/j.jfluchem.2004.09.002
                                    
                                    
                                        日期:2004.11
                                    
                                    From insight into the structure of trehazolin as trehalase inhibitor, six series of fluorine-containing phenylimino-thiazolidines (oxazolidines) derivatives were designed and prepared through a convenient synthesis of fluoroaryl isothiocyanate and a one-pot facile synthesis in high yield of fluorophenyl aminobenzoxazoles by cyclodesulfurization. The structures of the target compounds were confirmed with using IR, NMR, MS and elemental analysis. Their X-ray crystal analysis suggested that there were novel intermolecular (sp(2)CF(...)H(3)C-) and intramolecular (sp(2)CF(...)HN) hydrogen bonds between the fluorine atom on benzene ring and hydrogen atom of methyl group or amino group on five-membered heterocycle. Their fungicidal activities against Rhizoctonia solani and Pyricuraria oryzae at 100 ppm were determined. (C) 2004 Elsevier B.V. All rights reserved.