反应详情

温度

70 °C

Approximately 360 g of the 1,2-mixed pentadecanedioloctadecanediol (obtained from Viking Chemical Co. as Vikol 158 containing about 28% 1,2-pentadecanediol, about 28% 1,2-hexadecanediol, about 28% 1,2-heptadecanediol and about 16% 1,2-octadecanediol) were charged to a glass reactor equipped with heater, agitator, Dean-Stark tube with condenser and provision for blanketing the vapor space with nitrogen. The contents were heated to 70° C. to liquify and 55 g of dimethyl hydrogen phosphite were slowly added. The reaction mixture was heated to 110° C. and held for 2 hours, held at 120° C. for 1 hour, and held at 130° C. for 1 hour. During this reaction period, methanol distilled over and condensed into the trap. The crude product was vacuum stripped at 150° C. to remove volatile materials. 379 g of finished additive were produced. The product was an amber fluid which became waxy on cooling.

1. customequipped with heater, agitator, Dean-Stark tube with condenser
2. temperatureThe reaction mixture was heated to 110° C.
3. waitheld at 120° C. for 1 hour
4. waitheld at 130° C. for 1 hour
5. distillationdistilled over and
6. customcondensed into the trap
7. customstripped at 150° C.
8. customto remove volatile materials
9. custom379 g of finished additive were produced
10. temperatureon cooling