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90005-62-2

2-pyridin-3-yl-propionic acid synthesis

4synthesis methods
-

Yield:90005-62-2 89 %Chromat.

Reaction Conditions:

with iron(II) fluoride;2C2F3O2(1-)*Pd(2+)*C34H28FeP2;water in toluene at 140; under 22502.3 Torr; for 20 h;Sealed tube;

Steps:

12 Example 12: Preparation of (2-pyridin-3-yl)propionic acid and 3-(3-pyridyl) propionic acid from 3-vinylpyridine (12)

Under a nitrogen atmosphere, catalyst 1 (5 mol%, 2.3 mg) and magnetons were added. Ferrous fluoride (2 mol%, 1.9 mg) and magnetons were added to a 5 mL glass tube. Toluene (2 mL), 3-vinylpyridine (1 mmol, 151 mg), and distilled water (2 mmol, 36 mg) were subsequently added. Place the reaction tube in the reaction kettle, seal the reaction kettle, remove the air in the reaction kettle and wash it with carbon monoxide three times, and finally pressurize the carbon monoxide to 30 bar. After the addition was completed, the reaction kettle was placed in a metal module preheated to 140 degrees Celsius in advance and stirred for 20 hours. After the reaction is completed, the reaction system is cooled to room temperature and the pressure is slowly released. Using dodecane as an internal standard, the yield of 89% was determined by the working curve of gas chromatography, and the branched / straight chain was> 99/1.

References:

CN110294659,2019,A Location in patent:Paragraph 0062-0064