Vinod F. Patel

TL;DR: In this paper, photolytic homolysis of the alkyl cobalt salophens in the presence of radical trapping agents e.g. O 2, TEMPO, NO, SO 2, PhSSPh, PhSeSePh, MeSO 2 Cl, BrCCl 3 and I 2, leading to oxygen, nitrogen, sulphur, selenium and halogen functionalised products, is used to demonstrate the versatility of cobalt-mediated radical reactions in synthesis.

TL;DR: Acylcobalt salophens (2) undergo homolytic cleavage (Δ, sunlamp) producing acyl radicals (10) which undergo oxidative additions to activated carbon-to-carbon double bonds leading to enones and functionalised ring systems e.g..

TL;DR: Acylcobalt salophens (6) undergo homolytic cleavage in the presence of light from a conventional 300 W sunlamp to give acyl radicals (24) which then undergo additions to activated carbon-to-carbon double bonds, leading to enones, viz., following dehydrocobaltation from presumed organocobalt intermediates, or saturated ketones, following H-quenching of intermediates as discussed by the authors.

TL;DR: In this paper, the CoI species derived from cobalt (III) salen (11) or cobalt(II) salophen (12) and (Oallyl) or (O-but-3-enyl) iodophenols lead to isolatable cobalt complexes, viz.

TL;DR: In this article, reactions between the Co(I) species derived from cobalt(III) ‘salen’ and (O -allyl) or ( O -but-3-enyl) iodophenol, leads to isolatable cobalt complexes, viz (2), (13), which can be converted into substituted benzofurans, i.e. (5), (6) and benzopyrans.