Photocatalytic hydrogen atom transfer: the philosopher's stone for late-stage functionalization?

An overview about the potentialities of photocatalytic Hydrogen Atom Transfer (HAT) for the Late-Stage Functionalization (LSF) of complex molecules is offered. The examined approach allows the smooth homolytic cleavage of the C-H bonds embedded in the substrate, offering a straightforward access to...

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Bibliographic Details
Published in:Green chemistry : an international journal and green chemistry resource : GC 2020-01, Vol.22 (11), p.3376-3396
Main Authors: Capaldo, Luca, Quadri, Lorenzo Lafayette, Ravelli, Davide
Format: Article
Language:English
Subjects:
Green chemistry
Intermediates
Photocatalysis
Selectivity
Species classification
Substrates
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Summary:An overview about the potentialities of photocatalytic Hydrogen Atom Transfer (HAT) for the Late-Stage Functionalization (LSF) of complex molecules is offered. The examined approach allows the smooth homolytic cleavage of the C-H bonds embedded in the substrate, offering a straightforward access to valuabe C-centred radical intermediates to be exploited for the desired transformations. The examples have been classified according to the species responsible for the activation of the substrate, also showcasing the opportunities in terms of selectivity offered by the different alternatives. Applications of photocatalytic Hydrogen Atom Transfer (HAT) methodologies for the Late-Stage Functionalization (LSF) of complex molecules have been discussed in this perspective.
ISSN:1463-9262
1463-9270
DOI:10.1039/d0gc01035a