排序方式: 共有66条查询结果,搜索用时 31 毫秒
1.
E. A. Dikusar N. G. Kozlov V. I. Potkin T. D. Zvereva A. P. Yuvchenko M. P. Bei N. V. Kovganko 《Chemistry of Natural Compounds》2006,42(5):539-542
Previously unreported esters 1b–20b were synthesized from natural terpene alcohols, sterols, plant phenols, and camphar oxime (1a–20a) by reaction with o-carborane-C-carboxylic acid chloride.
__________
Translated from Khimiya Prirodnykh Soedinenii, No. 5, pp. 434–436, September–October, 2006. 相似文献
2.
Dikusar E. A. Zhukovskaya N. A. Moiseichuk K. L. Yuvchenko A. P. 《Russian Journal of Organic Chemistry》2002,38(2):153-157
A synthesis was developed of 2,5-dimethyl-2-tert-alkylperoxy-5-lithiumoxy-3-undecynes by treating the corresponding peroxyalkynes with butyllithium followed by reaction of the arising lithium peroxyacetylides with 2-octanone. The lithium peroxyalcoholates undergo hydrolysis with water to furnish peroxy bond containing alcohols. They also react with methyl and ethyl iodides, alkyl and benzyl bromides in the presence of hexamethylphosphoramide to afford the corresponding 2,5-dimethyl-2-tert-alkylperoxy-5-alkyl(benzyl)oxy-3-undecynes, with benzoyl chloride they yield peroxy bond containing benzoates. The thermal stability of the peroxides obtained was estimated by derivatography. 相似文献
3.
E. A. Dikusar V. I. Potkin T. D. Zvereva N. A. Zhukovskaya S. K. Petkevich A. S. Pavlyuchenkova M. Yu. Murashova A. P. Polikarpov A. A. Shunkevich A. P. Yuvchenko R. M. Zolotar’ 《Russian Journal of Organic Chemistry》2013,49(2):221-227
By the condensation of substituted aldehydes of vanillin series with 1,3-propanediol in boiling benzene in the presence of sulfo cation exchanger FIBAN K-1 as catalyst functionally 2-R-substituted 1,3-dioxanes were synthesized. 相似文献
4.
5.
6.
E. A. Dikusar A. P. Yuvchenko N. G. Kozlov V. K. Ol’khovik V. I. Potkin 《Russian Journal of General Chemistry》2004,74(8):1259-1263
A preparative synthesis of functionally substituted esters of dehydroabietic and 4,4-biphenylcarboxylic acids by the reaction of chlorides of these acids with alcohols in the presence of pyridine is developed. 4,4-Biphenyldicarbonyl dichloride reacts with hydroperoxides to form peroxy esters and with lithium alcoholates, which allows preparation of the corresponding ethers derived from secondary and tertiary alcohols.Translated from Zhurnal Obshchei Khimii, Vol. 74, No. 8, 2004, pp. 1360–1364.Original Russian Text Copyright © 2004 by Dikusar, Yuvchenko, Kozlov, Olkhovik, Potkin.This revised version was published online in April 2005 with a corrected cover date. 相似文献
7.
We have used two-dimensional correlation NMR spectroscopy to study the structure of a new derivative of resin acids isolated
from a rosin–itaconic acid adduct. We have established that the synthesized compound is the product of addition of citraconic
anhydride to levopimaric acid, the structure of which is close to the structure of maleopimaric acid. 相似文献
8.
E. A. Dikusar T. D. Zvereva N. G. Kozlov V. I. Potkin A. P. Yuvchenko N. V. Kovganko 《Russian Journal of General Chemistry》2005,75(4):575-579
m-Carborane-1,7-dicarbonyl dichloride was reacted with functionally substituted alcohols and phenols to obtain previously unknown esters, peroxy-containing inclusive.__________Translated from Zhurnal Obshchei Khimii, Vol. 75, No. 4, 2005, pp. 614–618.Original Russian Text Copyright © 2005 by Dikusar, Zvereva, Kozlov, Potkin, Yuvchenko, Kovganko. 相似文献
9.
Krivoguz Yu. M. Yuvchenko A. P. Pesetskii S. S. Bei M. P. 《Russian Journal of Applied Chemistry》2004,77(6):976-982
Peroxy-containing rosin-maleic and rosin-terpene-maleic resins were prepared and grafted to low-density polyethylene macromolecules by reactive extrusion. The morphology and mechanical properties of blends of functionalized polyethylene with polyamide 6 were determined. 相似文献
10.
L. A. Vlasukova F. F. Komarov V. N. Yuvchenko V. A. Skuratov A. Yu. Didyk D. V. Plyakin 《Bulletin of the Russian Academy of Sciences: Physics》2010,74(2):206-208
The morphology of the tracks of swift ions revealed in amorphous silicon nitride after treatment in an HF solution is studied.
The Si3N4/Si structures were irradiated with Fe, Kr, and W ions in the electron energy loss regime. Discontinuous tracks were recorded
upon exposure to W only, with an electron energy loss of 20.4 keV nm−1 being maximal for the conditions of our experiment. The results from calculations of the track formation in Si3N4 based on the thermal spike model are presented. 相似文献