METHOD OF PREPARING AROMATIC 4-NITROSO-N-HYDROXYTRIAZENES Russian patent published in 2001 - IPC

Abstract RU 2162074 C2

FIELD: textile industry, more particularly dyeing of fabrics, preparation of analytical reagents for metal ions, and manufacture of porous plastic materials and rubbers. SUBSTANCE: method comprises reacting para-benozoquinone diaxine with corresponding aryldiazonium salt in dimethylformamide in the presence of pyridine catalyst at 0-5 C. EFFECT: high yield and high purity of triazenes. 3 ex, 1 tbl

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RU 2 162 074 C2

Authors

Churkina L.N.

Beljaev E.Ju.

Dates

2001-01-20—Published

1998-07-23—Filed