Application of 98-64-6,Some common heterocyclic compound, 98-64-6, name is 4-Chlorobenzenesulfonamide, molecular formula is C6H6ClNO2S, traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, such as complicated route, low yield, poor purity, etc, below Introduce a new synthetic route.
To a solution of the appropriate amount of DMF (N, N-dimethylformamide) in a volume ratio of 3: 1 with ethylene glycol mixture) was added 100 mmol of the compound of the above formula (I), 170 mmol of the compound of the above formula (II) 6 mmol of a catalyst (1.7 mmol of a mixture of Pt(NH3)2(NO2)2 and 4.3 mmol biphenyltetrather), 200 mmol of an oxidizing agent PhI(TFA)2 and 10 mmol of the additives 4,4 ‘,4″,4″-tetra-tert-butylphthalocyanine copper, and then the temperature was raised to 60°C, and the reaction was sufficiently stirred at that temperature for 5 hours, after the reaction, the reaction system is naturally cooled to room temperature, and then filtered to adjust the filtrate pH is neutral, and thenWith saturated sodium carbonate aqueous solution to fully wash, add acetone extraction 2-3 times, combined organic phase, vacuum distillation, the residue over 300-400 mesh silica gel column chromatography to an equal volume of ethyl acetate and methylene chloride mixture followed by rinsing to give a compound of formula (III) in a yield of 98.1percent.
These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route 4-Chlorobenzenesulfonamide, its application will become more common.
Reference:
Patent; Shenzhen Tan Xi Biological Technology Co., Ltd.; Shenzhen Huimeier Technology Co., Ltd.; Zheng Chao; (9 pag.)CN105198791; (2017); B;,
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