Tri-lacunary polyoxometalates of Na 8 H [PW 9 O 34] as heterogeneous Lewis base catalysts for Knoevenagel condensation, cyanosilylation and the synthesis of …

~94%

~87%

~10%

~97%

~95%

~94%

~95%

~%

~98%

~95%

~99%

~95%

~98%

~96%

~95%

~93%

~10%