Chemistry is traditionally divided into organic and inorganic chemistry. category: benzothiophene, The former is the study of compounds containing at least one carbon-hydrogen bonds.In a patent£¬Which mentioned a new discovery about 17402-83-4
The present invention provides a new method for preparing according to […], which belongs to the technical field of pharmaceutical and chemical synthesis. It solves the problem that the existing according to[…] of the preparation method of the impurity is high, the yield is low, the problem of serious pollution. This method, in order to 4-hydroxybenzene and thiophene as the starting material 4 is prepared by the step of reaction intermediates V, to 7-hydroxy-2-quinolone by 2 VII is prepared by the step of reaction intermediates, intermediate V and intermediates prepared by condensation VII clinical medicine […]according to. The raw materials of this invention is easy to obtain, the price is low, the operation is simple, mild reaction conditions, has excellent industrial application value. (by machine translation)
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Reference£º
Benzothiophene – Wikipedia,
Benzothiophene | C8H6S – PubChem