4-Bromophenacyl Esters of Gibberellins, Useful Derivatives for High Performance Liquid Chromatography
Authors:
- 1 January 1978
- journal article
- research article
- Published by Taylor & Francis in Analytical Letters
- Vol. 11 (1) , 73-83
Abstract
The 4-bromophenacyl esters of six gibberellins were prepared by crown-ether catalyzed reaction between the potassium salts of the gibberellins and 4-bromophenacyl bromide under mild non-aqueous conditions. The derivatives were stable, possessed high UV absorbance and were well separated by HPLC on μC18 or cyanopropyl silica. The esters (and the corresponding TMS ethers) gave well-defined mass spectra with easily identifiable molecular ions. The combination of chromatographic and mass spectroscopic properties suggests that the derivatives may be very useful for analysis of naturally-occurring gibberellins.Keywords
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