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Gold plated rings: N-Propargylcarboxamides (1) when reacted with a gold complex containing the IPr N-heterocyclic carbene ligand, delivers the first isolable vinylgold intermediates obtained from alkynes. [see Scheme; IPr=1,3-bis(2,6-diisopropylphenyl)imidazol-2-ylide]
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Hashmi et al. (2009) studied this question.
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