Selective Allylic Oxidation of Terpenic Olefins Using Co-Ag Supported on SiO₂ as a Novel, Efficient, and Recyclable Catalyst

Table 3

Effect of reaction temperature.

Temperature (°C)	Conversion (%)	Yield (%)
		Epoxide 2	Verbenol 3	Verbenone 4	Myrtenol 5	Myrtenal 6
R.T	0	0	0	0	0	0
60	80	4	20	29	3	4
80	100	2	12	50	7	20
100	95	4	7	33	6	8
120	96	4	12	44	2	5

Reaction conditions: 0.5 mL α-pinene, 1.3 mL H₂O₂; catalyst 0.1 g; 24 h; acetonitrile (5 ml). Yields are determined by GC using dodecane as internal standard.