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《Chemical Research In Chinese Universities》 1992-10
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Studies of Tri (Substituted Silyl methylene)tin Unsaturated Carboxylates

XIE Qing-Lan,XU Xiao-Hua (Institute of Elemento-organic Chemistry,Nankai University,Tianjin,300071)XIE Xiao-Juan,CHEN Chuan-Feng (Department of Chemistry,Anhui Normal University,Wuhu)  
Fourteen tri[(phenyidimethylsilyl)methylene]-(Ⅰ) and tri[(diphenylmethyisilyl) methylene]tin(Ⅱ) unsaturated carboxylates were synthesized by the reaction of corresponding bis(silylmethylene) stannoxanes with unsaturated carboxylic acids.The IR.1H NMR,119Sn NMR and 29Si NMR spectra of these compounds were studied.The data of IR and 119Sn NMR indicate that these compounds are four-coordinated monomeric organotin compounds.The miticide activities of these compounds depended on the substituted silylgroups.Compounds (Ⅰ) have a good acaricidal activity,but which become zero for compounds(Ⅱ).
【Fund】: 国家自然科学基金
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