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α-偶氮苯基-β-氨基萘作为醛鉴定的试剂
α-PHENYLAZO-β-NAPHTHYLAMINE AS A REAGENT FOR THE IDENTIFICATION OF ALDEHYDES
【摘要】 <正> Goldschmidt等曾用α-偶氮苯基-β-氮基萘和醛类在醇溶液中作用,得无色产物。他认为此产物是三氮杂苯类(triazines),并制得其盐酸盐以及氯铂酸盐。后来Fischer找出这一反应在醋酸溶液中亦同样可以进行,并在加压下用氢碘酸还原由α-偶氮苯基-β-氨基萘与醛类作用所得产物,可以获得相应的伯胺和咪唑,因而证实此产物为咪唑而不是三氮杂苯。Crippa找出在浓盐酸的催化作用下,α-偶氮苯基-β-氨基萘能与苯乙酮作用生成苯骈喹噁啉(benzoquinoxaline)。我们考虑到α-氮苯基-β-氨基萘易和醛类作用生成萘骈咪唑,而此萘骈咪唑又能与盐酸形成盐酸盐,其盐酸盐又能进一步和氯化铂反应形成复盐,并且大多数萘骈咪唑具萤光。这些性质对于用作分析试剂都有利。若能选择适当条件,使α-偶氮苯基-β-氨基
【Abstract】 α-Phenylazo-β-naphthylamine was found to be a satisfactory reagent for the identification of aldehydes. This reagent does not react with acetone, acetophenone, cyclohexanone, and other ketones tested. Solid derivatives of twenty eight aldehydes were prepared, the melting points ranging from 179 to 273°. The 1-anilino-2-alkyl-α-naphthoimidazoles react with hydrochloric acid to form salts, which in turn react with platinic chloride to form complex salts. With four exceptions all the 1-anilino-2-alkyl-α-naphthoimidazoles are fluorescent under ultra-violet light.
- 【文献出处】 化学学报 ,Acta Chimica Sinica , 编辑部邮箱 ,1965年04期
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