Analysis reveals the cobalt/organophotoredox system converts aldehydes into alkenes, suggesting a new alternative to traditional methods.
A new cobalt/organophotoredox dual catalytic system is reported for the efficient retro‐hydroformylation of aldehydes. Under the optimized conditions, a wide range of α‐monosubstituted aldehydes are readily transformed into the desired alkenes in a one‐pot two‐step process, via the in situ formation of the corresponding 1,4‐dihydropyridines as key intermediates. This strategy represents a mild alternative to other traditional approaches requiring high temperatures and noble metal catalysts.
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Nouaille et al. (2025) studied this question.
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