Cp*Rh(III)-Catalyzed Low Temperature C–H Allylation of N‑Aryl-trichloro Acetimidamide

The readily synthesized trichloro acetimidamide was found to be an excellent directing group for the directed C–H-allylation reactions. Depending on the allylating agent used, selectively either mono- or diallylated products were readily synthesized. Moreover, the trichloro acetimidamide directing group was found to be highly efficient even at lower temperature for the C–H-allylation reaction. Due to mildness of the reaction conditions, double bond isomerization or cyclization to indole side product was not observed.