反应详情

温度

45 °C

409.0 g of 3,6,7-trimethyl-6-octen-1-in-3-yl acetate and 20.0 g of Lindlar catalyst (5% Pd+3.5% Pb on CaCO3) are put in an autoclave and heated under nitrogen to a temperature of 45° C. Nitrogen is exchanged by hydrogen (H2) and the reaction mixture put at an absolute pressure of 2 bar. After the calculated amount of hydrogen has been consumed the reaction mixture is filtered and distilled (2 mbar, 130° C.) to obtain 3,6,7-trimethyl-6-octen-3-yl acetate (=compound of formula (Ib)).

1. customAfter the calculated amount of hydrogen has been consumed the reaction mixture
2. filtrationis filtered
3. distillationdistilled (2 mbar, 130° C.)