65412-03-5, Name is 4-(2-Aminoethyl)tetrahydro-2H-pyran, molecular formula is C7H15NO, belongs to Tetrahydropyrans compound, is a common compound. In a patnet, once mentioned the new application about 65412-03-5, Quality Control of: 4-(2-Aminoethyl)tetrahydro-2H-pyran
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)
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Reference£º
Tetrahydropyran – Wikipedia,
Tetrahydropyran – an overview | ScienceDirect Topics