Polyethylene Glycol (PEG‐200): An Efficient, Green and Biocompatible Reaction Medium for the Metal‐Free Synthesis of Functionalized 1,4‐Benzothiazines.

Abstract An efficient, simple and biocompatible one‐pot two‐component PEG‐200 catalysed approach for the synthesis of bioactive and medicinally important 1, 4‐benzothiazine derivatives from 2‐aminobenzothiols and 1, 3‐dicarbonyl compound has been demonstrated. Polyethylene glycol (PEG‐200) has proved to be a new class of green and biocompatible reaction media for the metal free organic synthesis.