Abstract
The solvent-free one pot synthesis of spiropyranyl-oxindole in the presence of NaHCO3 under grinding has been achieved. This process is simple, fast, efficient and environmentally benign.
ACKNOWLEDGMENTS
Thanks go to the National Natural Science Foundation of China (Nos. 20872088 and 21072126) and the Leading Academic Discipline Project of Shanghai Municipal Education Commission (Grant No. J50102) for financial support.