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.