Two visible-light-mediated O–H insertion protocols involving oximes and aryldiazoacetates leading to different products depending on the solvent employed are reported. In DCM, direct O–H insertion takes place. In THF, there is the additional incorporation of the ring-opened form of this solvent into the structure of the product. These metal-free protocols are mild and tolerant to air and moisture. The preparation of an acaricide has been developed as an example of synthetic application.

No abstract

A reaction for H-F bond insertion onto diazo compounds is reported. The protocol describes a simple reaction set-up employing commercially available HF.pyr (Olah Reagent) as the fluorine source. The method...