meso‐Cumulenic 2H‐Corroles from meso‐Ethynyl‐3H‐corroles

Angewchem
meso‐Cumulenic 2H‐Corroles from meso‐Ethynyl‐3H‐corroles: Alkynyl‐substituted 3H‐corrole 9 a was converted to [3]cumulenic 2H‐corrole 10 a by treatment with trimethylsilyl chloride (TMSCl), and 1,3‐butadiyne‐bridged 3H‐corrole dimer 11 b was transformed into [5]cumulene-bridged 2H-corrole dimer 12 b by oxidation with PbO2.

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