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A 4 – (2 – aminoethyl) tetrahydropyranylation synthetic method (by machine translation)
The invention belongs to the chemical pharmaceutical intermediates synthesis technology field, in particular to a pharmaceutical bei Fu citalopram intermediate 4 – (2 – aminoethyl) tetrahydropyranylation synthetic method. The method comprises the following steps: (1) 4 – chlorine four hydrogen pyranes with cyanoacetic acid methyl ester reaction to obtain the 2 – cyano – 2 – (tetrahydro – 4 – pyranyl) acetic acid methyl ester; (2) 2 – cyano – 2 – (tetrahydro – 4 – pyranyl) methyl acetate obtained with protective cover (tetrahydro – 4 – pyranyl) – b nitriles; (3) (tetrahydro – 4 – pyranyl) – b nitrile C hydrogenation reaction to obtain 4 – (2 – aminoethyl) tetrahydropyran. The method adopts the 4 – chlorine four hydrogen pyranes, cyanoacetic acid methyl ester as the raw material, the method has short reaction time, low cost, easily available raw materials, non-toxic control and not stable chemical raw materials, safe and effective, the yield is high, less impurities. (by machine translation)
Balanced chemical reaction does not necessarily reveal either the individual elementary reactions by which a reaction occurs or its rate law.Recommanded Product: 1768-64-5. In my other articles, you can also check out more blogs about 1768-64-5
Reference：
Tetrahydropyran – Wikipedia,
Tetrahydropyran – an overview | ScienceDirect Topics