The structure of a new anti-viral antibiotic, julimycin B-II, has been established as a derivative of β,β'-bianthraquinonyl by spectroscopic and degrative experiments.
Gas-chromatographic identification of products formed in iodination of methyl phenols by retention indices
作者:I. V. Gruzdev、I. M. Kuzivanov、I. G. Zenkevich、B. M. Kondratenok
DOI:10.1134/s1070427212090108
日期:2012.9
Iodination reaction followed by conversion of iodine-substituted methylphenols to the corresponding trifluoroacetates was suggested for improving the sensitivity of the gas-chromatographic determination of phenol and its methyl-substituted derivatives (al isomers of mono-and diethylphenols, 2,3,5-, 2,3,6-, and 3,4,5-trimethylphenols) in aqueous media. Acylation products of iodo methylphenols (104 compounds) were identified by linear-logarithmic retention indices on a standard nonpolar polydimethylsiloxane stationary phase, and the pattern of their variation with the number and nature of substituents were characterized. A procedure for identification of methyl-substituted phenols in water in their gas-chromatographic determination with an electron-capture detector was developed.