Herein we report a platinum‐catalyzed isomerization of cyclopropenes to 1,3‐dienes. Diverse dienylated alcohols were obtained in 42–98 % yield. The synthetic potential of the products was demonstrated by their use in Diels–Alder cycloadditions with various dienophiles. Isotope labelling studies provide strong support for a mechanism involving pericyclic [1,5]‐σ‐bond rearrangement of a vinyl platinum carbene intermediate.
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Smyrnov et al. (2024) studied this question.
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