A View [2+2+2] a Kill: For the first time, nickel-catalyzed [2+2+2] cycloaddition reactions of alkynes or diynes with carboryne using 1-iodo-2-lithiocarborane as a precursor have been achieved. The mechanism is proposed after the structural confirmation of the key intermediate, nickelacyclopentene.
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Qiu et al. (2010) studied this question.
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