929-75-9,Some common heterocyclic compound, 929-75-9, name is 1,11-Diamino-3,6,9-trioxaundecane, molecular formula is C8H20N2O3, traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, such as complicated route, low yield, poor purity, etc, below Introduce a new synthetic route.
A 1 moles of a double-terminal amine polyether (structure of formula (2), R 2 = R 3 = H, n = 3), 18 moles of dichloroethane and 1 mole of sodium hydroxide (an aqueous solution having a concentration of 20% by weight) were charged into a reaction flask equipped with a cooling apparatus, 4 C, then slowly add 1 mole of acryloyl chloride, the temperature of the addition process does not exceed 15 C, after the addition of acryloyl chloride, the reaction is carried out at 15 C for 3 hours; the resulting reaction is allowed to stand and the organic phase is separated, Washed with saturated aqueous NaCl solution 3 times, dried with anhydrous sodium sulfate, the organic solvent was distilled off to obtain a crude product of orange-red viscous liquid, and the crude product was washed with acetone to obtain the product of polymerization grade. The product of the polymerization stage was confirmed to be a monomer represented by the formula (1) (wherein Ri = R2 = R3 = H, n= 3) using an infrared spectrum.
These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route 1,11-Diamino-3,6,9-trioxaundecane, its application will become more common.
Reference:
Patent; CHINA PETROLEUM & CHEMICAL CORPORATION;.; DRILLINGRESEARCH INSTITUTE OF SINOPEC ZHONGYUAN PETROLEUM ENGINEERING CO., LTD; WANG, ZHONGHUA; (12 pag.)CN104926678; (2017); B;,
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