Synthesis of Heterogeneous Copper Catalyst Based on Amino-Functionalized Triazine Rings Supported by Silica-Gel for Oxidation of Alcohols

Table 3

Oxidation of various alcohols using H₂O₂ catalyzed by AT-silica supported Cu(OAc)_2a.

Entry	Alcohol	Product	Time (min)^c	Yield (%)^d,e
1			35	80
2			30	71
3^b			75	83
4			2	98
5			2	98
6			5	98
7			30	81
8			30	46
9			45	60
10			30	53
11			2	98
12			80	67

^aReaction conditions: alcohols = 1 mmol, amount of catalysis = 0.15 g, H₂O₂ = 3 mmol, solvent = 𝑛-hexane, all reactions were carried out in reflux condition, except entries 5, 9, 11, which were performed in room temperature.
^bAcetone was used as a solvent.
^cTime of maximum conversion (determined by TLC and/or GC).
^dIsolated yield.
^eAll of the reactions give corresponding aldehyde in 100% selectivity.