Structures and pesticidal activities of derivatives of dinitrophenols. Part V. Reactions of certain dinitro-aryl thiocarbamates with potassium hydroxide in methanol and with various nucleophiles
作者:M. Pianka、J. D. Edwards
DOI:10.1039/j39670002290
日期:——
yl chloride and potassium 2,4-dinitrophenoxide, 2-chloro- or 2-methyl-4,6-dinitrophenoxide, or 2,4-dinitro-1-naphthoxide, on heating in acetone, give S-aryl thiocarbamates, whereas potassium nitrophenoxide gives an O-arylthiocarbamate. On treatment with potassium hydroxide in methanol at room temperature the 6-substituted-2,4-dinitrophenyl and 2,4-dinitro-1-naphthyl thiocarbamates and iminothiocarbonates
NN -Dialkylthiocarbamoyl氯离子和钾2,4-二硝基苯酚盐,2-氯-或2-甲基-4,6-二硝基苯酚盐,或2,4-二硝基-1-萘酚,对丙酮加热,给小号-芳基硫代氨基甲酸盐,而硝基苯氧基钾产生O-芳基硫代氨基甲酸酯。关于用在甲醇中的氢氧化钾处理在室温下将6-取代的2,4-二硝基苯和2,4-二硝基-1-萘基硫代氨基甲酸盐和iminothiocarbonates获得高度着色的p -quinonoid钾1,1-宝石二甲氧基ACI -不同稳定性的硝基盐,其中两个甲氧基是等价的。该ACI-盐根据条件在溶液中分解为甲基醚或苯酚钾,或两者兼而有之。2,4-二硝基苯硫代氨基甲酸酯不产生ACI -salt,但用在甲醇中的benzenethiolate氢氧化钾水解。但是,在碱的存在下,丙酮会产生强烈的紫色。在碱存在下,硫代氨基甲酸酯,氨基甲酸酯和亚氨基硫代碳酸酯与各种能够产生RCHX-离子的亲