Sulphaguanidine is prepared by the
(A) condensation of N-acetyl sulphanilyl chloride with guanidine
(B) condensation of N-acetyl sulphanilyl bromide with guanidine
(C) condensation of N-acetyl sulphanilyl chloride with acetanilide
(D) condensation of N-acetyl sulphanilyl bromide with acetanilide
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Explanation:
The preparation method of a kind of sulfaguanidine of the present invention, step is as follows: add ammonium nitrate in reactor and dicyandiamide adds heat fusing, be passed through ammonia, prepares Guanidine nitrate (1:1);Concentrated sulphuric acid heating is obtained sulfur trioxide, and prepares chlorosulfonic.13 hours ago
ashik362:
option do
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