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Phosphate Derivatives of Natural Lactones. I. Synthesis of Novel Isoalantolactone Dialkylphosphonates |
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| Authors: | R. I. Dzhalmakhanbetova B. B. Rakhimova N. A. Talzhanov G. K. Rustembekova A. T. Kulyyasov S. M. Adekenov |
| Affiliation: | (1) Institute of Phytochemistry, Ministry of Education and Science, Republic of Kazakhstan, Karaganda, ul. M. Gazalieva 4 |
| Abstract: | Novel isoalantolactone dialkylphosphonates were synthesized in 70-87% yields by reacting this eudesmanolide with dialkylphosphites. Their structures were proved by spectral analysis using IR, PMR, 13C and 31P NMR, and two-dimensional 1H-1H (COSY) spectroscopy. The reaction of isoalantolactone with dialkylphosphites is highly stereoselective. |
| Keywords: | isoalantolactone phosphorylation PMR 13C and 31P NMR 2D 1H-1H NMR (COSY) |
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