Heterogeneous Metal Catalysts for Oxidation Reactions

Table 5

Catalysts for alkyl benzene oxidation.

Name of catalysts	Substrate	Oxidant	Reaction time (h)	Reaction temperature; (°C)/solvent	Preparation method	Main product	Selectivity (%)	References
Fe nanocatalysts on the surface SiO2/Al2O3		TBHP	24	50/—	Immobilization	Acetophenone	89	[18]
Ag/SBA-15		TBHP	5	90/—	Impregnation	Acetophenone	99	[35]
Nickel substituted Cu chromite spinel		TBHP	8	70/CH3CN	Coprecipitation	Acetophenone	69	[9]
Silica supported cobalt, NHPI		O2	24	100/CH3COOH	Immobilization	Acetophenone	91	[70]
Au/SBA-15	Ethylbenzene	TBHP	36	70/CH3CN	In situ impregnation	Acetophenone	93	[40]
Mn-containing MCM-41U		O2	—	350/	Impregnation	Acetophenone	93.6	[72]
Fe(tpa) (MeCN)2(ClO4)2		O2	24	75°C/2-butanone	—	Acetophenone	54	[135]
^aTPFPPFeCl		O2	24	100/—	—	Acetophenone	82.8	[18]
Fe/MgO, ^bNHPI		O2	20	25/—	—	Acetophenone	52	[18]
Fe (salen)-^cPOM		H2O2	5	80/CH3CN	—	Acetophenone	100	[18]

Fe (5, 10, 15, 20-tetrakis (pentafluorophenyl)) porphyrin; ^bN-hydroxyphthalimide; ^cKegging type polyoxometalate (K8SiW11O39) [17]. U = unwashed.