In stead of using butyl nitrite and absolute ethyl-ether as reagents,in an improved method,cupferron.(aminoium N-nitroso-phenylhydroxy amine)was synthesized by using ethyl nitrite and chlorobenzene.

• 本文介绍了以亚硝酸乙酯代替亚硝酸丁酯,用氯苯代替无水乙醚合成铜铁试剂的新工艺。