A highly efficient and simple protocol for the construction of 2‐haloaromatic isothiocyanates from their respective amines in the presence of cheap, readily available and air stable iron catalyst is described. All the reactions were carried out under moderate reaction conditions could give their target products in good to excellent yields in shorter reaction time

Scheme 8. Proposed mechanism for the synthesis of (2-Oxy/Thio)benzothiazole. Scheme 9. Bulk Scale Synthesis of Substituted benzothiazoles.

No abstract

The synthesis of 2‐aminobenzothiazoles has been demonstrated in the presence of transition metal under mild reaction conditions. In this paper, disubstituted thioureas have also been reported from isothiocyanates at room temperature. Subsequently, C−S cross‐coupling reaction was described for the construction of benzothiazoles using cheap, readily available and air stable Iron catalyst. Moreover, no other byproducts could be observed except target products. Furthermore, control experiments were performed for reveal the mechanism. In addition, a broad range of substrate scope has been explored.