Reaction of diazonium salts with transition metals. 6. Preparation of mixed acid anhydrides from arenediazonium salts and sodium carboxylates under palladium(0) catalysis
METHOD FOR PRODUCING BENZOYL FORMIC ACID COMPOUND AND PYRIDAZINE COMPOUND
申请人:SUMITOMO CHEMICAL COMPANY, LIMITED
公开号:US20200385328A1
公开(公告)日:2020-12-10
The present invention provides an industrially-advantageous process for preparing a benzoyl formic acid compound, and an efficient process for preparing a pyridazine compound using the same process. Specifically, the present invention provides a process for preparing a compound represented by formula (2), which comprises a step (B): a step of reacting a compound represented by formula (1) with a nitrosyl sulfuric acid in water to produce the compound represented by formula (2).
POLYIMIDE RESIN, METHOD FOR PRODUCING POLYIMIDE RESIN, AND ELECTROLYTE MEMBRANE, CATALYST LAYER, MEMBRANE/ELECTRODE ASSEMBLY AND DEVICE EACH CONTAINING POLYIMIDE RESIN