- Ethyl acetate as a pro-reducing agent in an one-pot reductive deamination of nitroanilines
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The reductive deamination of various nitro-substituted anilines by the new method (20% H2SO4/NaNO2/ethyl acetate, Method 1) was studied and compared that with a similar procedure previously developed by Pare et al. (i.e., concentrated H2SO4/NaNO2/ethanol, Method 2) for the dediazonization of 4-methyl-2,6-dinitroaniline. The deaminated products derived from the mononitro-substituted anilines were obtained in good-to-high yield by Method 1 depending upon the position of the nitro group to the amino function. The higher yield of the de-aminated products was observed from the substituted meta-nitroanilines. Method 1 was more suitable for the deamination of 3-nitroanilines. Method 2 was more favorable for the de-amination of denitro-substituted anilines than that for the mononitroanilines. Ethyl acetate was more suitable for the reductive deamination of mononitroanilines, while ethanol was more appropriate for dinitroanilines.
- Bacherikov, Valeriy A.,Wang, May-Jane,Cheng, Shu-Yun,Chen, Ching-Huang,Chen, Kuo-Tung,Su, Tsann-Long
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p. 1027 - 1032
(2007/10/03)
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- Method for inhibiting the growth of tobacco suckers
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The growth of tobacco suckers in tobacco plants is inhibited by applying to the tobacco plants an effective amount of a substituted 2,6-dinitroaniline alone or in combination with a surfactant.
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