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I am doing nitration of benzimidazolone by diluted nitric acid to get 5-nitro benzimidazolne. My problem is reaction not get to finish and seems 95% reaction completed while 4 to 5 % unreacted, so...
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I have a process for the making stannous sulfate (SnSo4) as folllow First prepared a SnCl2 by Sn + 2HCl and then SnCl2 solution to be added NaOH after that filter washed and the cake dissolved in...
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I am trying ulmann condensation reaction and used CuCl as a catalyst. The problem is an impurity is form about 20% during the reaction and very long time is required to completion of reaction, so...
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