C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
C07C 205/26 (2006.01) C07C 201/12 (2006.01) C07C 213/02 (2006.01)
Patent
CA 2068880
The displacement of halogen from a 1,2,3-trihalo-4;6-dinitroresorcinol can be carried out in an aqueous medium using al- kali metal hydroxide to form 2-halo-4,6-dinitroresorcinol. The product is a useful intermediate in the synthesis of 4,6-diaminores- orcinol; which is a monomer for polybenzoxazole polymers. The process forms part of a useful aqueous process for synthesizing 4,6-diaminoresorcinol.
Smart & Biggar
The Dow Chemical Company
Toyobo Co. Ltd.
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