Methanol → HCID 86735484, compound

Participants

Reaction Steps

90 parts of an aqueous solution of technical sodium hydrosulfide containing 35 percent NaHS and 4 percent NasS2O3 were added to a mixture comprising 51.6 parts of 2,2'-dimethoxyazoxybenzene in 155 parts methanol at room temperature within 5 hours. Subsequently, the reaction mixture was refluxed at 70° C to 75° C for 2 1/2 hours while the pH was maintained between 8.5 and 9.4. After this period the absence of the starting material was confirmed and the reaction mixture was cooled down to 0° C to 5° C, the reduced product that precipitated filtered off and washed with water until alkali-free. After drying below 70° C, 35 parts of 2,2'-dimethoxyhydrazobenzene of a melting point of 100° C to 102° C were obtained, this representing a commercially acceptible grade in a yield of 72 percent of theory.

Provenance & Evidence