Derivatives of p‐Diethoxybenzene: II. 1,4‐diethoxy‐2‐aminobenzene‐5‐diazoniumborofluoride

Abstract

The preparation of 1,4-diethoxy-2-aminobenzene-5-diazoniumborofluoride is described and the structure is proved.room temperature in the dark for 24 hours. The yellow product is then filtered off and dried in a vacuum exsiccator above phosphorus pentoxide. The yield is about 25 g (85 70). 4.8 g is dissolved in a mixture of 25 ml alcohol and 5 ml water at 60" C; a little charcoal is added and the solution filtered; the filtrate is cooled in ice-water and the precipitated diazonium compound filtered off and washed with a little cold alcohol.The yield is 3.5 of fine, yellow crystals. Analysis: Found: C 39.70; H 4.88; N 13.98. Calculated for C,,H,,0,N,BF4(294.96): ,, 40.68; ,, 4.78; ,, 13.92. Eindhoven, October 1952. December 4fh 1952), (Received

On the Syntheses of 2‐Nitro‐3,6‐diethoxy‐bromobenzene and 2‐Nitro‐3,6‐diethoxy‐morpholinobenzene

“…Aus dem Verhaltnis der int,egrierten Intensitaten der aromatischen Protonen ergibt sich eine Verteilung von 34% Pa und 66% 4b. 116°C [GI) 4-Nitro-2,5-diethoxy-acetanilid und 4-Nitro-2,5-diethoxy-anilin wurden nach [6] hergestellt.…”