ZrOCl2·8H2O as an efficient catalyst for the synthesis of dibenzo [b,i]xanthene-tetraones and fluorescent hydroxyl naphthalene-1,4-diones

Article abstract of DOI:10.1007/s11164-013-1413-8

Abstract An efficient and environmentally benign protocol for the synthesis of dibenzo [b,i]xanthene-tetraones and fluorescent hydroxyl naphthalene-1,4-diones in the presence of a catalytic amount of ZrOCl₂·8H₂O as an inexpensive and eco-friendly catalyst with high catalytic activity under solvent-free conditions is reported. Graphical abstract: [Figure not available: see fulltext.]