We have developed a one‐pot cascade N–S bond formation reaction of free NH‐sulfoximines with thiophenols to produce diverse N‐sulfenyl sulfoximines in moderate to excellent yields. This reaction provides a straightforward, practical way to prepare N‐sulfenyl sulfoximine derivatives
A novel and efficient method for the synthesis of N-S substituted sulfoximines has been established with h-BN-supported copper(II) nanomaterial as the catalyst. Catalyzed by this heterogeneous catalyst, the desired products were obtained with wide scope of substrates, good to excellent yields, free ligand and low-toxicity solvent. Moreover, after being reused ten times, there is almost no significant loss of its catalytic activity.