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Article Abstract
A high-valent Ir(III)-catalyzed C-H bond functionalization is carried out for the first time on water for the synthesis of a biologically relevant chromone moiety. The C-H activation and annulation of salicylaldehydes with diazo-compounds provided the desired chromones. The synthesis of C3-substitution-free chromones has also been demonstrated by a one-pot decarboxylation by employing tert-butyl diazoester. C3 and C5 C-H activations of the product chromone are also carried out under different conditions for further diversification.
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| http://dx.doi.org/10.1021/acs.joc.9b00418 | DOI Listing |
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