4-Amino-2,1,3-benzothiadiazole as a Removable Bidentate Directing Group for the Pd(II)-Catalyzed Arylation/Oxygenation of sp<sup>2</sup>/sp<sup>3</sup> β-C–H Bonds of Carboxamides
(ABTD) as a new bidentate directing group for the Pd(II)-catalyzed sp2/sp3 C–H activation/functionalization of various aliphatic/alicyclic/aromatic carboxamide systems. The Pd(II)-catalyzed, ABTD-directed sp3 C–H arylation/acetoxylation of aliphatic- and alicyclic carboxamides afforded the corresponding β-C–H arylated/acetoxylated carboxamides. The Pd(II)-catalyzed, ABTD-directed sp3 C–H arylation of c