研究了强碱氢氧化钾加入量和溶剂等对反应的影响,发现随着碱浓度的增加,邻硝基甲苯的转化率增加,邻硝基苯甲醛的收率先增后降。
The effect of strong base, KOH, was studied and it was found that the conversion of o-nitrotoluene increased if the amount of KOH increased.
实验结果表明,季铵盐a1对于高锰酸钾氧化邻硝基甲苯合成邻硝基苯甲酸,是1种优良的相转移催化剂。
The experiment results show that a 1 is a good PTC for synthesis of ONBA with o nitrotoluene by oxidation of potassium permanganate.
研究了作为制备新型内硝基冠醚原料的中间体2-硝基-1,3-苯二酚(NB)及多甘醇双对甲苯磺酸酯(OEDT)的合成。
Synthesis of 2 nitro 1,3 benzenediol( NB) and oligoethyleneglycol ditosylate(OEDT) used as material for inner nitrocrown ether are studied.
据福克斯新闻报道,美国科罗拉多州立大学的研究人员对一种植物进行生物性改造,这样空气中只要稍有三硝基甲苯的气味,它就可以变白。
American researchers at Colorado State University have biologically engineered a plant that turns white when it detects even trace amounts of TNT in the air, Fox News reports.
据福克斯新闻报道,美国科罗拉多州立大学的研究人员对一种植物进行生物性改造,这样空气中只要稍有三硝基甲苯的气味,它就可以变白。
American researchers at Colorado State University have biologically engineered a plant that turns white when it detects even trace amounts of TNT in the air, Fox News reports.
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