Novel method for producing (E) -1-amino-2- (fluoromethylene) -4- (p-fluorophenyl) butane, novel method for producing its intermediate, and its novel intermediate and diformyl A new method for preparing alkali metal salts of amides

摘要

The present invention relates to a novel process for preparing alkali metal salts of diformylamide, and a novel crystalline form of sodium diformylamide.