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

Table 1

Effect of catalyst amount.

Amount of catalyst (g)	Conversion (%)	Yield (%)
		Epoxide 2	Verbenol 3	Verbenone 4	Myrtenol 5	Myrtenal 6
0.02	16	Trace	Trace	5.7	9	Trace
0.05	78.5	Trace	36.6	27.4	Trace	Trace
0.1	82	Trace	27	28	10	Trace
0.15	98	Trace	13	41	17	11

Reaction conditions: 0.5 mL α-pinene and 1.3 mL H₂O₂; 60°C; acetonitrile (5 ml); 24 h. Yields are determined by GC using dodecane as internal standard.