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. 18281-05-5, name is Ethyl icosanoate, A new synthetic method of this compound is introduced below., Computed Properties of C22H44O2
EXAMPLE 111 (+-)-cis,trans-2-[[[[(4-octadecyltetrahydrofuran-2-yl)methoxy]carbonyl]amino]methyl]pyridine Following the procedure described in example 9, but using in place of the compound prepared in example 4b, (+-)-cis,trans-(4-octadecyltetrahydrofuran-2-yl)methanol obtained as in example 70c starting from ethyl eicosanate, the title compound was obtained as a colourless oil and in quantitative yield. Rf: 0.24 (silicagel, hexane:ethyl acetate 1:1); IR (film) v: 3317, 3050, 2913, 2846, 1714, 1588, 1566, 1463, 1211 cm-1; 1 H-NMR (90 MHz, CDCl3) delta: 0.87 (m, 3H), 1.0-2.6 (complex signal, 36 H), 3.40 (m, 1H), 4.08 (m, 4H), 4.50 (d, J=5.4 Hz, 2 H), 5.96 (m, NH), 7.28 (m, 2H), 7.64 (t of d, Ja=7.6 Hz, Jb=1.8 Hz, 1H), 8.51 (d, J=4.6 Hz, 1H).
The basis of chemical reaction formula synthesis, the synthesis route is composed of some specific reactions and combined according to certain logical thinking. We look forward to the emergence of more reaction modes in the future.
Reference:
Patent; J Uriach & Cia S.A.; US4997843; (1991); A;,
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