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

Table 4

Effect of solvent.

Solvent	Conversion (%)	Yield (%)
		Epoxide 2	Verbenol 3	Verbenone 4	Myrtenol 5	Myrtenal 6
Free solvent	100	7	16	30	6	Trace
Ethanol	100	5	31	37	6	2
Methanol	94	15	59	13	Trace	2
Chloroforme	40	11	25	5	Trace	Trace
Acetone	98	7	6	46	3	14
Acetonitrile	100	2	12	50	7	20

Reaction conditions: 0.5 mL α-pinene, 1.3 mL H₂O₂; catalyst 0.1 g; 80°C; 24 h. Yields are determined by GC using dodecane as internal standard.