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Remarkable Observations on Triplet-Sensitized Reactions. The Di-π-methane Rearrangement of Acyclic 1,4-Dienes in the Triplet Excited State

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posted on 17.09.2009, 00:00 authored by Diego Armesto, Maria J. Ortiz, Antonia R. Agarrabeitia, Mar Martin-Fontecha, Noureddin El-Boulifi, Gonzalo Duran-Sampedro, Danielle Enma
Previous studies have led to the conclusion that a large majority of acyclic 1,4-dienes do not undergo photochemical di-π-methane (DPM) rearrangement under triplet-sensitized irradiation. The results of a detailed analysis of these processes demonstrate that a series of these compounds do indeed undergo highly efficient DPM rearrangement from their triplet excited states when suitable triplet sensitizers are used.

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