1730-45-6Relevant academic research and scientific papers
Synthesizing method of phenothiazine compound serving as medical intermediate
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Paragraph 0054; 0055; 0056-0058; 0060; 0061; 0065-0066, (2017/08/25)
The invention relates to a synthesizing method of a phenothiazine compound which can serve as a medical intermediate and is shown as the formula (III) (please see the formula in the description). The method comprises the steps that at room temperature, a compound shown as the formula (I) (please see the formula in the description), a compound shown as the formula (II) (please see the formula in the description), a catalyst, a ligand, alkali and auxiliaries are added into an organic solvent, the temperature is increased to 70 DEG C to 90 DEG C, reacting under stirring is conducted for 7 hours to 10 hours, aftertreatment is conducted after reacting is finished, and then the compound shown as the formula (III) is obtained, wherein R1 and R2 are selected from H, C1-C6 alkyl groups, C1-C6 alkoxy groups and halogen separately, and X is halogen. According to the method, through usage of the appropriate reactants and comprehensive selection and synergistic promotion of the catalyst, the ligand, the alkali, the auxiliaries and the organic solvent, the target product can be obtained at a high yield, and a good application prospect and the industrialized production potential are achieved.
