化学性质:白色粉末状结晶
用途:
生产方法: 由邻甲苯胺与乙酰乙酸乙酯反应而得。也可使邻甲苯胺与双乙烯酮反应:向四口圆底烧瓶中加入400ml蒸馏水,开动搅拌并降温至10-15℃。用50ml滴定管均匀地按一定流量比同时滴加32.1g邻甲苯胺和26.5g双乙烯酮(滴后10分钟即有产品析出),在1.5小时内滴完,然后于10-15℃搅拌1小时。经吸滤、吸干而得,产率为90.5%-90.9%。曾以邻甲氧基苯胺代替邻甲苯胺,在相同条件下进行反应得到白色细粒状的产品,收率为92%-94.2%。 工业上生产1000kg产品单耗:邻甲苯胺620kg、乙酰乙酸酯760kg。
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中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | 2-(Bis-ethylsulfanyl-methylene)-3-oxo-N-o-tolyl-butyramide | 850998-07-1 | C16H21NO2S2 | 323.48 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | ω-bromoacetoacet-ortho-toluidide | 23976-47-8 | C11H12BrNO2 | 270.126 |
—— | 2,α-Dimethylacetoacetanilid | 30016-04-7 | C12H15NO2 | 205.257 |
—— | 3-hydroxy-butyric acid o-toluidide | 103854-29-1 | C11H15NO2 | 193.246 |
(2Z)-2-(羟基亚胺)-N-(2-甲基苯基)-3-氧代丁酰胺 | 2-hydroximinoacetoacet-o-toluidide | 3014-32-2 | C11H12N2O3 | 220.228 |
—— | 2,2-difluoro-3-oxo-N-(o-tolyl)butanamide | 1439365-69-1 | C11H11F2NO2 | 227.211 |
乙酰乙酸-(2-甲基-4-硝基-苯胺) | acetoacetic acid-(2-methyl-4-nitro-anilide) | 104295-67-2 | C11H12N2O4 | 236.227 |
—— | 3-anilino-3-thioxo-N-2-tolylpropanamide | 1149747-98-7 | C16H16N2OS | 284.382 |
—— | acetoacet-o-toluididethiosemicarbazide | 329069-76-3 | C12H16N4OS | 264.351 |
2,2-二氯-N-(2-甲基苯基)乙酰胺 | 2,2-dichloro-N-(2-methylphenyl)acetamide | 14985-83-2 | C9H9Cl2NO | 218.083 |
—— | 2-benzylidene-N-(2-methylphenyl)-3-oxobutanamide | 499184-85-9 | C18H17NO2 | 279.338 |
—— | methyl N-(2-methylphenyl)oxamate | —— | C10H11NO3 | 193.202 |
—— | 2-(Bis-ethylsulfanyl-methylene)-3-oxo-N-o-tolyl-butyramide | 850998-07-1 | C16H21NO2S2 | 323.48 |
—— | 2-(1,3-dithiolan-2-ylidene)-3-oxo-N-o-tolylbutanamide | 877304-51-3 | C14H15NO2S2 | 293.411 |
Methods of preparing 2,3-dioximes of various substituted acetoacetamides are presented. The dissociation constants of these compounds and the stability constants of their metal chelates were determined by potentiometric pH measurements. The influence of the substituents of the amide group on the change of stability is discussed.