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E-2-Chloro-1-(2,4,6-tri-t-butylphenyl)-1-phospha-ethylene was allowed to react with t-butyllithium as a base to give 2-(2,4,6-tri-t-butylphenyl)-1-phospha-acetylene, suggesting the generation of a phosphorus analogue of isonitrile followed by migration of the phenyl group from phosphorus to carbon.
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Yoshifuji et al. (1988) studied this question.
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