Nitric Acid → 5-Chloro-2-ethoxalylamino-3-nitrobenzotrifluoride

참여 물질

반응 단계

A solution of N-ethoxalyl-4-chloro-2-trifluoromethylaniline in concentrated sulphuric acid (125 ml) was added to a stirred mixture of 100% nitric acid (120 ml) and concentrated sulphuric acid (240 ml). The temperature was kept between 8°-10° C. during the addition. After the addition was completed, the solution was stirred for additionally 20 min. without external cooling, whereafter it was poured onto icewater. This afforded precipitation of the title compound as an oil, which crystallized as light yellow crystals upon standing. The crystals were filtered off and washed extensively with water. M.p. 100°-101° C.

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