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Generation of an Organotellurium(II) Cation
Author(s) -
Sugamata Koh,
Sasamori Takahiro,
Tokitoh Norihiro
Publication year - 2012
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201101313
Subject(s) - chemistry , halogenation , halide , tellurium , adduct , cycloaddition , medicinal chemistry , fluoride , halogen , inorganic chemistry , organic chemistry , catalysis , alkyl
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 Te II –Te IV mixed‐valent tellurenyl fluoride, BbtTeTe(F) 2 Bbt, 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.