Generation of an Organotellurium(II) Cation

Generation of an Organotellurium(II) Cation
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有机碲(II) 阳离子的生成

DOI:
10.1002/ejic.201101313
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发表时间:
2012
期刊:
Eur. J. Inorg. Chem.
影响因子:
--
通讯作者:
K.
K.
中科院分区:
--
文献类型:
--
作者:
Sugamata;K.

文献摘要

相似文献

我们预期低配位碲基阳离子物种的化学捕获产物也可以通过Tbt或Bbt基团动力学稳定。最近,我们报道了Bbt-取代的二碲化物BbtTeBbt的卤化反应,导致形成TeII-TeIV混合价碲基氟,BbtTeTe(F)2Bbt和碲基卤化物,BbtTeX(X = Cl,Br,I)。在这些碲卤化物的脱卤反应期间,合理的假设是形成碲基阳离子物种作为中间体。本文报道了用丁二烯或三苯基膦成功地捕获碲基阳离子物种,并通过二烯加合物的热逆[1+4]环加成再生碲基阳离子物种。
We expected that the chemical trapping products of low‐coordinated tellurenyl cation species can also be kinetically stabilized by the Tbt or Bbt group. Recently, we have reported the halogenation reactions of Bbt‐substituted ditelluride, BbtTeTeBbt, leading to the formation of the TeII–TeIVmixed‐valent tellurenyl fluoride, BbtTeTe(F)2Bbt, and tellurenyl halides, BbtTeX (X = Cl, Br, I). During the dehalogenation reactions of these tellurium halides, it is rational to postulate the formation of a tellurenyl cation species as an intermediate. In this paper, we report the successful trapping of tellurenyl cation species with butadienes or triphenylphosphane, and the regeneration of the tellurenyl cation species by thermal retro [1+4] cycloaddition of the diene adducts.