Scheme 6.

Comparison of established processes involving chlorine or hydrogen chloride (A1–D1) and the corresponding alternatives utilizing bi‐ or trichloride‐based ILs, respectively (A2–D2). o‐DCB = ortho‐dichlorobenzene.

Comparison of established processes involving chlorine or hydrogen chloride (A1–D1) and the corresponding alternatives utilizing bi‐ or trichloride‐based ILs, respectively (A2–D2). o‐DCB = ortho‐dichlorobenzene.