Recent progress in catalytic oxygenation of aromatic C–H groups with the environmentally benign oxidants H2O2 and O2

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Abstract

Developing efficient approaches for the selective oxygenation of aromatic C–H groups has been a challenging goal, interesting from both fundamental and practical perspectives. Designing catalyst systems for the direct production of phenol from benzene holds significant practical promise; on the contrary, novel strategies for the late-stage selective introduction of oxygen into aromatic rings of complex organic molecules could be useful for the synthesis of fine chemicals, including biologically active compounds. Another aspect of the overall picture is toughening environmental constraints, resulting in a steady increase in the number of catalyst systems relying on environmentally benign oxidants such as H2O2 and O2. Overall, today, the realm of selective catalytic aromatic C–H oxidations is developing rapidly. This review summarizes the progress made in homo- and heterogeneous catalyst systems of aromatic C–H oxygenations with hydrogen peroxide and molecular oxygen, achieved in the last decade.

Original languageEnglish
Article numbere5900
Number of pages25
JournalApplied Organometallic Chemistry
Volume34
Issue number11
DOIs
Publication statusPublished - 1 Nov 2020

Keywords

  • aromatic oxidation, C–H activation, electrophilic substitution, hydrogen peroxide, oxygen, vitamin K
  • SELECTIVE OXIDATION
  • ONE-POT SYNTHESIS
  • hydrogen peroxide
  • vitamin K-3
  • electrophilic substitution
  • BENZENE HYDROXYLATION
  • P-BENZOQUINONES
  • C-H activation
  • EFFICIENT OXIDATION
  • PHASE HYDROXYLATION
  • aromatic oxidation
  • AEROBIC OXIDATION
  • HYDROGEN-PEROXIDE
  • DIRECT HYDROXYLATION
  • oxygen
  • HETEROGENEOUS CATALYST

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