“…These complexes having a vacant site are especially known for their (Lewis acid) catalytic activity. Lewis acid catalysts are important in Knoevenagel condensation, [1][2][3] cyanation, 4 Strecker reaction, 5 Aldol condensation, 6 transesterification, 7 epoxidation, 8 hydrogenation, 9 oxidation, 10 Friedel-Crafts alkylation, 11 Henry reaction, 12 Suzuki-Miyaura cross-coupling, 13,14 and Michael addition. 15 In recent times, there has been a significant focus on the synthesis of coordinatively unsaturated Cd(II) compounds, driven by the desire to understand their catalytic effectiveness.…”