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0.06 Mole of cobalt oxide and 0.11 mole of γ-picoline were put in a 300 ml stainless steel autoclave and 3 hours' reaction was effected under the conditions of the hydrogen pressure being 20 Kg/cm2 and carbon the monoxide pressure being 20 Kg/cm2 at 160°C while stirring. After cooling, hydrogen and carbon monoxide were removed, and then 0.1 mole of decene-1 and 0.125 mole of methanol were added and 4 hours' reaction was effected under the carbon monoxide pressure of 20 Kg/cm2 at 110°C while stirring. As a result, the yield of methyl undecanoate was 62%. By subjecting the reacted mixture to distillation after adding 0.12 mole of undecanoic acid thereto, there was obtained cobalt undecanoate as the distillation residue.

1. customreaction
2. customat 160°C
3. temperatureAfter cooling
4. customhydrogen and carbon monoxide were removed
5. customreaction
6. stirringwhile stirring
7. distillationto distillation