An iron‐catalyzed electrophilicamination of sodium sulfinates with anthranils to generate N‐(2‐carbonylaryl) benzenesulfonamides with high atom efficiency under redox‐neutral conditions has been developed.
Ruthenium-Catalyzed Direct CH Amidation of Arenes Including Weakly Coordinating Aromatic Ketones
作者:Jiyu Kim、Jinwoo Kim、Sukbok Chang
DOI:10.1002/chem.201301025
日期:2013.6.3
CH activation: The ruthenium‐catalyzed direct sp2 CHamidation of arenes by using sulfonyl azides as the amino source is presented (see scheme). A wide range of substrates were readily amidated including arenes bearing weakly coordinating groups. Synthetic utility of the thus obtained products was demonstrated in the preparation of biologically active heterocycles.
A convenient and efficient Cu(OAc)(2)-mediated N-heteroannulation reaction of [60]fullerene with N-sulfonylated o-amino-aromatic methyl ketones or O-alkyl oximes has been reported for the synthesis of novel and scarce [60]fullerene-fused tetrahydroazepinones and -azepinonimines in a highly, selective manner. Moreover, a possible mechanism involving two pathways is proposed on the basis of the experimental observations.