Каскадні реакції альдольного приєднання та циклізації на основі хірального комплексу Ni(II) основи Шифа гліцину
Using platform of a new type of chiral Ni(II) complex of glycine Schiff base we designed addition-cyclization reaction cascade to explore aspects of kinetic/thermodynamic formation of the corresponding (S)(2S,3S)/(S)(2S,3R) diastereomers. It was found that the final lactone products reflect the the...
Збережено в:
Дата: | 2021 |
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Автори: | , , , , , , |
Формат: | Стаття |
Мова: | English |
Опубліковано: |
V.P. Kukhar Institute of Bioorganic Chemistry and Petrochemistry of the National Academy of Sciences of Ukraine
2021
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Теми: | |
Онлайн доступ: | https://bioorganica.com.ua/index.php/journal/article/view/42 |
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Назва журналу: | Ukrainica Bioorganica Acta |
Репозитарії
Ukrainica Bioorganica ActaРезюме: | Using platform of a new type of chiral Ni(II) complex of glycine Schiff base we designed addition-cyclization reaction cascade to explore aspects of kinetic/thermodynamic formation of the corresponding (S)(2S,3S)/(S)(2S,3R) diastereomers. It was found that the final lactone products reflect the thermodynamic stereocontrol due to much greater rates of the reversible aldol addition vs. subsequent cyclization step. The observed 4/1 (S)(2S,3S)/(S)(2S,3R) diastereoselectivity in the reactions of new type of (S)-Ni(II) complexes constitute an improvement over the previously reported 1.7/1 ratio. |
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