Caustic-free process for the production of...

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C - Chemistry, Metallurgy

07

D

260/249.85

C07D 251/50 (2006.01) C07D 251/44 (2006.01)

Patent

CA 1092115

A CAUSTIC-FREE PROCESS FOR THE PRODUCTION OF MONOCHLORO-DIAMINO-S-TRIAZINES Abstract of the Disclosure A new and improved process is provided for preparing monochloro-diamino-s-triazines which are useful as herbicides. The process comprises reacting in A first stage cyanuric chloride and a selected primary alkylamine at elevated temperature to give a dichloro-monoalyl- amino-s-triazine and reacting in a second stage this dichloro-monoalkylamino-s-triazine with an excess of a primary alkylamine which may be introduced as a pure liquid, as gas or as a solution in water. The process gives consistent yields in excess of 97% of monochloro- diamino-s-triazines. Because of the anhydrous conditions in the new caustic-free process and the feasibility of recycling the excess of monoalkylamines employed, no serious effluent problems arise.

293466

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