反应详情

10 g/hour of methyl 3-methoxyvalerate were pumed into an evaporator and passed from there, in gaseous form together with 3 l of nitrogen, at 350° C., over 5 g of an SiO2 catalyst. The gaseous reaction products were condensed, weighed and analysed by gas chromatography. In the course of 6 hours, 53.3 g of the reacted mixture consisting of 30% of methyl 3-pentenoate, 56% of methyl 2-transpentenoate, 8% of methyl 2-cis-pentenoate, 2% of methyl 4-pentenoate and 3% of unconverted methyl 3-methoxyvalerate were obtained. The ratio of 3-pentenoates to 2-pentenoates was accordingly 1:2.2.

1. custom10 g/hour of methyl 3-methoxyvalerate were pumed into an evaporator
2. customat 350° C.
3. customcondensed