1-HEPTADECENE synthesis
- Product Name:1-HEPTADECENE
- CAS Number:6765-39-5
- Molecular formula:C17H34
- Molecular Weight:238.45
Yield:26741-30-0 38 %Spectr. ，6765-39-5 65 %Spectr.
Reaction Conditions:
with acetic anhydride;potassium iodide;di(rhodium)tetracarbonyl dichloride;1,2-bis-(diphenylphosphino)ethane at 140; for 3 h;Product distribution / selectivity;
Steps:
2-6
Example 2-4 In a 10 mL recovery flask, 568.7 mg of stearic acid (2.0 mmol), 7.8 mg of rhodium catalyst [RhCl (CO)2]2 (0.02 mmol), 31.8 mg of 1,2-bis (diphenylphosphino) ethane (0.08 mmol), 56.9 mg of acetic anhydride (0.2 mmol), 332 mg of potassium iodide (2.0 mmol) were stirred with a stirring bar at 250°C. Immediately after starting to heat, the solid of stearic acid melted to give a uniform solution, and the solution began to bubble. After three hours, stopped heating, the mixture was allowed to cool to a room temperature (25°C) and filtered while washing with ethyl ether. Ethyl ether was distilled off under reduced pressure. To the product was added 105.9 mg of anisole as an internal standard. Similarly as in Example 1-1, the product was measured by 1H-NMR to quantify the starting material and produced materials. A result of GC measurement showed a small amount of starting stearic acid remaining. A result of 1H-NMR measurement showed that an amount of the starting stearic acid remaining was 4%, and the amounts of a terminal olefin and an internal olefin were 8% and 86%, respectively.; Example 2-6 The Example was carried out in the same way as Example 2-4, except that an amount of acetic anhydride and a reaction temperature were changed as shown in Table 7. A result of GC measurement showed a small amount of starting stearic acid remaining. A result of 1H-NMR measurement showed that an amount of the starting stearic acid remaining was 6%, and the amounts of a terminal olefin and an internal olefin were 65% and 38%, respectively.
References:
Kao Corporation EP2325156, 2011, A1 Location in patent:Page/Page column 11; 13; 14
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