Synthetic Route of 112-70-9, Researchers who often do experiments know that organic synthesis is a process of preparing more complex target molecules from simple raw materials through one or more chemical reactions. Generally, it requires fewer steps,and cheap raw materials. 112-70-9, name is 1-Tridecanol. A new synthetic method of this compound is introduced below.
EXAMPLE 2 [00076] The following Example describes the condensation esterification of DDDA using p-toluenesulfonic acid catalyst and the preparation of DDDA diester using a mixture of 50 mole % Telomer alcohol and 50 mole % Exxal 13 followed by a ?dewaxing? hexane extraction to remove the symmetrically fluorinated component from the mixed ester product. [00077] A mixture of 230.3 g DDDA (1.0 mole), 474.64 g Telomer alcohol (1.05 mole), 207.91 g Exxal 13 (1.05 mole), and 1.9 g p-toluenesulfonic acid (0.01 mole) were charged to a reactor fitted with a Dean-Stark trap and condenser. The Dean-Stark trap was filled with additional Exxal 13. The reaction was heated and sparged with nitrogen to remove water. The nitrogen sparge was removed and the reaction heated to 280 C. under vacuum (0.07 kPa). A portion of the crude ester (610 g) was stirred with 1700 g hexane. The hexane solution was decanted and filtered from undissolved, highly fluorinated material. The hexane solution was treated with activated charcoal and filtered, then with basic alumina and filtered again. Hexane was removed by distillation. Elemental analysis of the residue showed 29.56% F, in good agreement with 28.3% F by 1H NMR analysis. [00078] FIG. 3 shows the wear performance of this high-F-content material in 150N oil. The range of fluorine concentrations shown in FIG. 3 corresponds to weight concentrations of diester ranging up to 1%. Samples of 150N containing 0.25% diester (equivalent to 0.07%F) or more were hazy at ambient temperature, due to the limited solubility of the highly fluorinated diester component, RfO(O)C-(CH2)x-C(O)ORf, but were homogeneous at the 80 C. BOCLE test temperature. The response is very non-linear. A very strong anti-wear effect is obtained with only very small concentrations of the additive. The properties of the mixture of 150N oil and additive are much better than the properties expected based on simple linear effects and overall composition. The anti-wear performance achieved in FIG. 3, through use of the non-symmetrical, partially fluorinated diesters of the present invention, without other additives, is comparable to that of fully formulated motor oil.
At the same time, in my other blogs, there are other synthetic methods of this type of compound,112-70-9, 1-Tridecanol, and friends who are interested can also refer to it.
Reference:
Patent; E. I. du Pont de Nemours and Company; US6734320; (2004); B2;,
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