Related Products of 444335-16-4, The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature.444335-16-4, Name is (R)-3-(4-Bromo-3-fluorophenyl)-5-(hydroxymethyl)oxazolidin-2-one, molecular formula is C10H9BrFNO3. In a Patent£¬once mentioned of 444335-16-4
Method for recycling precious metal catalyst in preparation process of intermediate (by machine translation)
The invention relates to a recovery method, in particular to a recovery method of a precious metal catalyst in a preparation process of a. The method comprises the following steps a, reacting compound 1, bisboronic acid pinacol, catalyst bis (di-t-butylphenylphosphine) palladium dichloride (II), potassium carbonate and stirring to tetrahydrofuran, and then 50 – 60 C filtering the reaction liquid to remove residual potassium carbonate, adding an organic solvent after concentrating the filtrate, and cooling the residue 60 – 70 C unitarily and centrifu, 5 – 6 hours after concentrating the filtrate 20 – 30 C into an organic solvent, and adding the organic solvent. The compound 2; b, the remaining mother liquor after the centrifugation is collected and concentrated to dryness, and the crude 5-fold tetrahydrofuran, di-tert-butylphenylphosphine and auxiliary, 50 – 65 C which are 1 – 2 hours concentrated, are added to obtain the catalyst bis (di-tert-butylphenylphosphine) dipalladium (II). The preparation process is simple, the reaction yield is high, the production cost is greatly reduced, and the method is suitable for industrial production. (by machine translation)
We¡¯ll also look at important developments in the pharmaceutical industry because understanding organic chemistry is important in understanding health, medicine, the role of 444335-16-4, and how the biochemistry of the body works.Related Products of 444335-16-4
Reference£º
Oxazolidine – Wikipedia,
Oxazolidine | C3H2681NO – PubChem