排序方式： 共有32条查询结果，搜索用时 15 毫秒
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Malysheva S. F. Kuimov V. A. Belogorlova N. A. Khrapova K. O. Apartsin K. A. Gusarova N. K. 《Russian Journal of Organic Chemistry》2022,58(2):192-199
Russian Journal of Organic Chemistry - Alkylphosphinic acids, including long-chain ones, were synthesized in up to 76% yields from red phosphorus and n-AlkBr (Alk = C4–C14) under micellar... 相似文献
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Minkhadzhidinova D. R. Nikiforov G. A. Khrapova N. G. Sharpatyi V. A. 《Russian Chemical Bulletin》1985,34(12):2618-2620
Russian Chemical Bulletin - 相似文献
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Volkov P. A. Khrapova K. O. Telezhkin A. A. Albanov A. I. Apartsin K. A. Trofimov B. A. 《Russian Journal of General Chemistry》2022,92(9):1712-1719
Russian Journal of General Chemistry - The SNHAr reaction of pyridines with bis(polyfluoroalkyl)phosphonates assisted by benzoylphenylacetylene (equimolar reactants ratio, 70–75°С,... 相似文献
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Volkov P. A. Telezhkin A. A. Ivanova N. I. Khrapova K. O. Albanov A. I. Gusarova N. K. Trofimov B. A. 《Russian Journal of Organic Chemistry》2019,55(12):1971-1974
Russian Journal of Organic Chemistry - Three-component SNHAr reaction of quinine, diphenylphosphine oxide, and furoylacetylene chemoselectively afforded the corresponding quinine vinyl ether and 2:... 相似文献
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Volkov P. A. Gusarova N. K. Telezhkin A. A. Khrapova K. O. Ivanova N. I. Albanov A. I. Vakul’skaya T. I. Khutsishvili S. S. Trofimov B. A. 《Russian Chemical Bulletin》2020,69(6):1102-1105
Russian Chemical Bulletin - Isoquinolines react with secondary phosphine oxides without catalyst (70–75 °C, 10–15 h, without solvent or in MeCN) to chemo- and regioselectively form... 相似文献
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N. G. Khrapova I. P. Skibida V. M. Misin 《Russian Journal of Physical Chemistry B, Focus on Physics》2010,4(3):492-496
The total content and activity of natural antioxidants of the phenol type in coconut, palm, corn, and rice oils were measured by the chemiluminescent method. The existence of antioxidants of two types in palm and rice oils was shown. The synergistic action of citric acid in the presence of tocopherol was observed for the example of coconut oil. 相似文献
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L. V. Boguslavskaya O. B. Maksimov N. G. Khrapova N. I. Kulesh 《Russian Chemical Bulletin》1988,37(2):209-213
| 1. | It was found that polyhydroxynaphthoquinones participate in side reactions of consumption of the inhibitor. The applicability of the method of calculating the rate constants based on consumption of the inhibitor was demonstrated for polyphenols which enter into side reactions of consumption (with ROOH, O2) and the products of their transformation retain the capacity to react with RO2 ·. The conditions of the applicability of the method were determined. |
| 2. | The values of the rate constants of the reaction with RO2 · were established for four natural polyhydroxynaphthoquinones, and the activation energies and preexponential factors were calculated. The most promising antioxidants of this class were revealed. |