Catalytic Oxidative Cleavage of C=N Bond in the Presence of Zeolite H-NaX Supported Cu(NO₃)₂, as a Green Reagent

Table 2

The effect of various solid supports on the oxidative cleavage of benzaldehyde semicarbazone (a mixture of benzaldehyde semicarbazide (0.05 g) and supported reagent (0.25 g) was refluxed in dichloromethane for 2 hour).

Run	Solid acid support	Yield of Benzaldehyde %
1	H-NaX	91
2	NaX	20
3	NaY	24
4	ZSM-5	34
5	MCM-41	12
6	SiO2	14
7	None	—