Synthetic Route of 2062-98-8, In the next few decades, the world population will flourish. As the population grows rapidly and people all over the world use more and more resources, all industries must consider their environmental impact. 2062-98-8, name is Perfluoro(2-methyl-3-oxahexanoyl) fluoride belongs to ethers-buliding-blocks compound, it is a common compound, a new synthetic route is introduced below.
Example 2; Example 2-1; [0175] Example for Preparation of CH2CHCH(OCH3) CH2OCOCF (CF3)OCF2CF2CF3; [0176] CH2CHCH(OCH3)CH2OH (270 g) was charged together with NaF (334 g) into a 2 L pressure resistant reactor equipped with a reflux condenser in which a coolant at 20 C. circulated, and stirred at -10 C. While discharging by-product HF formed by the reaction out of the system from the reflux condenser on the upper portion by bubbling nitrogen gas to the reactor, FCOCF(CF3)OCF2CF2CF3 (1055 g) was dropwise added over a period of 1.5 hours. At this time, the temperature was adjusted so that the internal temperature of the reactor would be at most 0 C. After completion of the dropwise addition, stirring was carried out at 30 C. for 18 hours and then the reaction was terminated. [0177] NaF contained in the crude liquid after completion of the reaction was collected by filtration to obtain a crude product (981 g) (yield 86.4%). As a result of the analysis by NMR, the above-identified mixture was obtained as a liquid mixture with FCOCF(CF3)OCF2CF2CF3. The results of analysis of the above-identified compound are as follows. [0178] 1H-NMR(300.4 MHz, solvent:CDl3, standard:TMS) delta (ppm):3.29(s, 3H), 3.85-3.90(m, 1H), 4.24-4.45(m, 2H), 5.34(s, 1H), 5.39(d,J=8.4 Hz, 1H), 5.59-5.71(m, 1H). [0179] 19F-NMR(282.7 MHz, solvent:CDCl3, standard:CFCl3) delta (ppm): -81. 8(3F), -82.6(3F), -79.9-87.5(2F), -130.2(2F), -132.3(1F).
In the field of chemistry, the synthetic routes of compounds are constantly being developed and updated. I will also mention this compound in other articles, Perfluoro(2-methyl-3-oxahexanoyl) fluoride, other downstream synthetic routes, hurry up and to see.
Reference:
Patent; ASAHI GLASS COMPANY LIMITED; US2003/216595; (2003); A1;,
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