反应详情

The procedure was the same as in Example 2 except that the diluent solvent was 10 g of tetraline and the starting reactants were 226 g (1.0 mole) of 3,7,11-trimethyl-1-dodecen-3-ol and 101 g (1.2 moles) of diketene. 6,10,14-Trimethyl-5-pentadecen-2-one with the boiling point of 123° to 125°C/1 mmHg and the refractive index of 1.4560 at 20°C was obtained in an amount of 212 g corresponding to 84.7% yield based on 3,7,11-trimethyl-1-dodecen-3-ol.