This work describes a mild and robust double hydroarylation strategy for the synthesis of
symmetrical/unsymmetrical diaryl‐and triarylmethanes in excellent yields using Lambert salt
(0.2–1.0 mol%). Despite the anticipated challenges associated with controlling selective
product formation, unsymmetrical diaryl‐and triarylmethanes products are obtained
unprecedentedly. A highly efficient gram scale reaction has also been reported (TON for
symmetrical product= 475 and for unsymmetrical product= 390). The synthetic utility of the …

With a wide variety of commercially available drugs having unsymmetrical di and triaryl
methane pharmacophore, the synthesis of such molecules from common feedstock are
considered a useful synthetic task. Though various metal-catalyzed cross-coupling methods
are known to achieve the task, reported concerns with the use of such costly and toxic metal
catalysts limit the usefulness of such protocols.[1-3] The title work describes a sustainable
and robust metal-free double hydroarylation strategy for the synthesis of symmetrical …