Diazotization reactions

  • Thread starter Summ
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Hi,
I was wondering if anyone can help me understanding how these reactions work.
What is happening by adding CuSO4-5H2O, [NH4+][OH-] and HONH2-HCl (hydroxylammonium chloride) together in an aqueous solution? Is it forming a diazonium salt solution?
And when we are mixing the above solution with another diazonium salt [(HO-Benzenering-N-=-N-+)(Cl-)] in a diethyl ether solution what product are we expected to have? Will be azo coupling reaction occurred?
I am trying to synthesize a dihydroxyazobenzene and I found this synthetic procedure from a patent.
Any idea will be well accepted and appreciated!!
Thank you in advance!
 

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