Authors: Sanjay L. Gaikwad; Ankita P. Angre; Vishal A. Naik; Jyotsna G. Pargaonkar; Priya A. Patil; Kamlesh V. Chandekar; Archana U. Chavan; Paresh S. Gaikar
Greener route for the synthesis of photo- and thermochromic spiropyrans using a highly efficient, reusable, and biocompatible choline hydroxide in an aqueous medium