A straightforward method for cleaving carbon–carbon bonds under metal‐free, base conditions was reported. Efficient synthesis of desired products with 2,3‐fused diaminoindoles scaffold is achieved by reacting 2,2‐disubstituted indolin‐3‐ones with thioureas, leveraging mild reaction conditions and a short reaction time as advantageous features of the method.
Feng et al. (Sat,) studied this question.