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THE PREPARATION, PAPER CHROMATOGRAPHY, AND COLOR REACTIONS OF SEVERAL 5,6-DIHYDROXYINDO...
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THE PREPARATION, PAPER CHROMATOGRAPHY, AND COLOR REACTIONS OF SEVERAL 5,6-DIHYDROXYINDOLES AND 5,6-DIACETOXYINDOLES
作者:
R. A. Heacock,
M. E. Mahon,
B. D. Scott,
期刊:
Canadian Journal of Chemistry
(NRC Available online 1961)
卷期:
Volume 39,
issue 1
页码: 231-246
ISSN:0008-4042
年代: 1961
DOI:10.1139/v61-026
出版商: NRC Research Press
数据来源: NRC
摘要:
The paper chromatographic behavior of several 5,6-dihydroxyindoles has been studied. The colors given by nine dihydroxyindoles with 16 chromogenic reagents are reported. TheRfvalues of this group of compounds on Whatman No.1paper with 2% acetic acid in water orn-butanol/acetic acid/water (6:1:2) as running solvents have been determined. The 5,6-dihydroxyindoles can be chromatographed satisfactorily using Zaffaroni-type systems (i.e. formamide-treated paper and non-polar running solvents). SatisfactoryRfvalues can also be obtained for the 5,6-diacetoxyindoles on formamide-treated paper using a suitable non-polar mobile phase. The preparations of several new 5,6-dihydroxyindoles and 5,6-diacetoxyindoles are described and improved procedures for the syntheses of some known members of these groups are reported.
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