One electron oxidation of dialkyl diselenides and ditellurides is achieved with NO+CF3SO3−. According to ab initio calculations the radical cations have a trans stucture. In the solid state they dimerize to rectangular units [R–Te]42+ and [R–Se]42+. The long Se⋯Se and Te⋯Te bond is obviously due to a π*–π* interaction.
通过 NO+CF3SO3- 实现了二烷基二硒化物和二碲化物的单电子氧化。根据 ab initio 计算,自由基阳离子具有反式结构。在固态下,它们二聚为矩形单元 [R-Te]42+ 和 [R-Se]42+。Se⋯Se 和 Te⋯Te 的长键显然是由于 π*-π* 相互作用造成的。
Dialkylditellurides 3 and dialkyldiselenides 4 were prepared in high yields and in a one-pot procedure by the reduction of elemental tellurium and selenium with phenyl hydrazine in basic medium (NaOH/DMF) followed by treatment with organohalides.
Lie Ken Jie, Marcel S. F.; Yan-Kit, Cheung; Chau, Sherman H., Journal of the Chemical Society. Perkin transactions II, 1991, # 4, p. 501 - 508
作者:Lie Ken Jie, Marcel S. F.、Yan-Kit, Cheung、Chau, Sherman H.、Yan, Bonnie F. Y.
DOI:——
日期:——
Bhasin, K.K.; Gupta, Vijay; Gautam, A., Synthetic Communications, 1990, vol. 20, # 14, p. 2191 - 2195