Synthesis and Spectroscopic Investigations of Some New Organotelluronium Salts Based on Dicyclohexyl Telluride

Journal of the Korean Chemical Society

Kahtan A Asker¹  Ali Z Al Rubaie¹  Ali H Al Mowali¹  Dhafir M H Al Mudhaffar¹ 

关键词: Tetraphenylborate;    Dicyclohexyl telluride;    Telluronium salts;    Reductive elimination;    Oxidative addition;    Tetraphenylborate;   

DOI  :  

学科分类：化学（综合）

来源: Korean Chemical Society

【 摘 要 】

Dicyclohexyl telluride was obtained in a high yield by the reaction of cyclohexyl bromide with NaTeH(prepared in situ) in an aqueous ethanolic solution. A series of new organotelluronium salts of the general formula (cyclo-C6H11)2Te(R)X (where R = CH3, X = I (1); R = C2H5, X = Br(2); R = C2H5, X = I (3); R = C3H5, X = Br (4)) were prepared by the reaction of (cyclo-C6H11)2Te with the corresponding alkyl halide. Reaction of 1 with NaBPh4 gave compound 5 ( i.e. R = CH3, X = BPh4 ?) in 78% yield. Reaction of (cyclo-C6H11)2Te with benzyl bromide and 4-bromophenacyl bromide gave unexpectedly dibenzylcyclohexyltelluronium bromide (6) and bis(4-bromophenacyl)cyclohexyltelluronium bromide (7), respectively. Reaction of 6 with NaBPh4 gave the corresponding tetraphenylborate derivative (8) in high yield. 1H NMR studies revealed that in CDCl3solution compound 1 eliminated alkyl halide. Conductivity, IR, 1H and 13C NMR and thermal data for the new compounds are presented and discussed.

【 授权许可】

Unknown