Hypervalent Iodine Reagents Enable C(sp2)-H Amidation of (Hetero)arenes with Iminophenylacetic Acids.
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DOI: 10.1021/acs.orglett.2c02751
Abstract: Sulfonamide-containing (hetero)arenes are widely present in bioactive molecules. Here, we report the sulfonamidyl (hetero)arenes synthesis by the C(sp2)-H amidation from bench-stable amidyl-iminophenylacetic acids. The hypervalent iodine reagents covalently activated iminophenylacetic acids for the facile sulfonamidyl… read more here.
Keywords: hypervalent iodine; iodine reagents; iminophenylacetic acids; hetero arenes ... See more keywords
Experimental and computational studies on H2O-promoted, Rh-catalyzed transient-ligand-free ortho-C(sp2)-H amidation of benzaldehydes with dioxazolones.
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DOI: 10.1039/c8cc04904a
Abstract: An efficient and convenient ligand-free, rhodium-catalyzed ortho-C(sp2)-H amidation of benzaldehydes with dioxazolones using H2O as the key promoter is described. Using this protocol, a wide range of benzaldehyde substrates were selectively amidated in good to… read more here.
Keywords: ligand free; benzaldehydes dioxazolones; sp2 amidation; amidation benzaldehydes ... See more keywords