A Simple Method of Cyclization of the 2'-Hydroxychalcone with Polystyrene-Pyridine Resine under Mild Conditions
The satisfying cyclization of 2’-hydroxy chalcone to flavanone using polystyrene-pyridine resine as catalyst and methanol as solvent under mild conditions is reported here. The method is appropriate for 2’-hydroxy chalcone derivatives with electron group in B-ring.
Pengcheng Wang, Liqun Ai, Yungang Li, Xiaoming Sang and Jinglong Bu
X. X. Zheng et al., "A Simple Method of Cyclization of the 2'-Hydroxychalcone with Polystyrene-Pyridine Resine under Mild Conditions", Advanced Materials Research, Vols. 295-297, pp. 1156-1159, 2011