全文获取类型
收费全文 | 119篇 |
免费 | 0篇 |
专业分类
化学 | 118篇 |
物理学 | 1篇 |
出版年
2022年 | 3篇 |
2021年 | 1篇 |
2019年 | 1篇 |
2017年 | 1篇 |
2016年 | 2篇 |
2015年 | 2篇 |
2014年 | 4篇 |
2013年 | 4篇 |
2011年 | 1篇 |
2010年 | 7篇 |
2009年 | 7篇 |
2008年 | 1篇 |
2007年 | 3篇 |
2006年 | 10篇 |
2005年 | 5篇 |
2004年 | 2篇 |
2003年 | 3篇 |
2002年 | 2篇 |
2001年 | 3篇 |
2000年 | 3篇 |
1999年 | 4篇 |
1998年 | 4篇 |
1997年 | 2篇 |
1996年 | 4篇 |
1994年 | 1篇 |
1993年 | 4篇 |
1992年 | 6篇 |
1991年 | 11篇 |
1990年 | 8篇 |
1989年 | 6篇 |
1987年 | 1篇 |
1986年 | 1篇 |
1985年 | 1篇 |
1984年 | 1篇 |
排序方式: 共有119条查询结果,搜索用时 31 毫秒
1.
Nurkenov O. A. Gazaliev A. M. Turdybekov K. M. Bukeeva A. B. Kulakov I. V. 《Russian Journal of General Chemistry》2003,73(6):961-963
Alkylation of cytisine and d-pseudoephedrine alkaloids with chloroacetone was performed. The target product of the reaction with cytisine is aminoacetone and of the reaction with d-pseudoephedrine, a morpholine derivative. 相似文献
2.
K. M. Turdybekov S. M. Adekenov S. V. Lindeman Yu. T. Struchkov 《Chemistry of Natural Compounds》1990,25(6):669-671
An x-ray structural study has been made of the sesquiterpene lactone austricin: diffractometer, MoK radiation, 1147 reflections, direct method, R=0.045. The spatial structure of the molecule has been determined. The conformation of the pentane carbocycle is 1-envelope, of the heptane ring 1,10, 7-chair, and of the lactone ring 7-envelope. The lactone ring is trans-linked with the guaiane skeleton.Institute of Organic Synthesis and Coal Chemistry, Kazakh SSR Academy of Sciences, Karaganda. A. N. Nesmeyanov Institute of Heteroorganic Compounds, USSR Academy of Sciences, Moscow. Translated from Khimiya Prirodnykh Soedinenii, No. 6, pp. 788–791, November–December, 1989. 相似文献
3.
D. M. Turdybekov K. M. Turdybekov E. V. Burdel'naya A. Zh. Turmukhambetov S. M. Adekenov Yu. V. Gatilov 《Chemistry of Natural Compounds》2003,39(1):19-21
The structure of lappacontine hydrobromide hydrate was solved by an x-ray structure analysis. 相似文献
4.
A. M. Gazaliev M. Zh. Zhurinov O. A. Nurkenov K. M. Turdybekov S. V. Lindeman Yu. T. Struchkov 《Chemistry of Natural Compounds》1991,26(3):321-323
The results of an x-ray structural investigation of 2e-diethylamino-3e,4e-dimethyl-5e-phenyl-2a-thio-1,3,2-oxazaphospholane are discussed. It has been shown that the conformation of the 5-membered ring is that of a half-chair.Institute of Organic Synthesis and Coal Chemistry, Kazkh SSR Academy of Sciences, Karganda. A. N. Nesmeyanov Institute of Heteroorganic Compounds, USSR Academy of Sciences, Moscow. Translated from Khimiya Prirodnykh Soedinenii, No. 3, pp. 386–389, May–June, 1990. 相似文献
5.
S. M. Adekenov K. A. Aituganov K. M. Turdybekov S. V. Lindeman Yu. T. Struchkov 《Chemistry of Natural Compounds》1991,27(5):575-579
The new germacranolide argolide has been isolated from the epigeal part ofArtemisia glabella, and its structure has been shown by its conversion into oxopelenolide B. From the results of an x-ray investigation it is
suggested that argolide has the spatial structure of 3-oxo-4α,7α,6β(H)-germacra-1(10),11(13)-dien-6,12-olide.
Institute of Organic Synthesis and Coal Chemistry, Kazakh Academy of Sciences, Karaganda. A. N. Nesmeyanov Institute of Organometallic
Chemistry, Russian Academy of Sciences, Moscow. Translated from Khimiya Prirodnykh Soedinenii, No. 5, pp. 653–657, September–October,
1991. 相似文献
6.
K. M. Turdybekov T. T. Edil'baeva V. A. Raldugin M. M. Shakirov A. T. Kulyyasov S. M. Adekenov 《Chemistry of Natural Compounds》1998,34(2):141-144
A new sesquiterpene lactone having the structure 3-acetoxy-1-hydroxy-6, 7(H)-germacra-4,10(14), 11(13)-trien-6, 12-olide has been isolated fromArtemisia subchrysolepis Filat. and has been called subchrysin. Its stereochemistry has been established by x-ray structural analysis.Translated from Khimiya Prirodnykh Soedinenii, No. 2, pp. 176–180, March–April, 1998. 相似文献
7.
S. M. Adekenov K. M. Turdybekov K. A. Aituganoav S. V. Lindeman Yu. T. Struchkov S. N. Shaltakov 《Chemistry of Natural Compounds》1994,29(6):735-739
The new sesquiterpene lactone 1,10-dihydroxydihydroxyarglabin has been isolated from the epigeal part ofArtemisia glabella Kar. et Kir., and its structure has been established on the basis of spectral characteristics, independent synthesis, arglabin, and an x-ray structural investigation.Institute of the Chemistry of Plant Substances, Uzbekistan Academy of Sciences, Tashkent. Translated from Khimiya Prirodnykh Soedinenii, No. 6, pp. 825–830, November–December, 1993. 相似文献
8.
Stereoisomers of 1,5,6,7(H)- and 1,5,6,7(H)-guai-11(13)-en-6,12-olides are calculated using molecular mechanics. The possibility of forming various conformations in the 7-membered ring is examined as a function of the fusion to the 5-membered C-ring. The effect of the methyl orientation on the conformation of the 7-membered ring and the relative stability of the conformers are discussed.Insitute of Phytochemistry, Karaganda, fax (3212)-43-37-73. Translated from Khimiya Prirodnykh Soedinenii, No. 1, pp. 54–56, January–February, 2000. 相似文献
9.
T. S. Zhivotova A. M. Gazaliev S. D. Fazylov A. B. Karimova D. M. Turdybekov K. M. Turdybekov 《Russian Journal of Organic Chemistry》2005,41(6):898-900
2-Propynyl, ethyl, and isopropyl cytisinyl(β-chloro-β-phenylvinyl)phosphinates were synthesized, and their structure was determined by X-ray analysis.__________Translated from Zhurnal Organicheskoi Khimii, Vol. 41, No. 6, 2005, pp. 917–919.Original Russian Text Copyright © 2005 by Zhivotova, Gazaliev, Fazylov, Karimova, D. Turdybekov, K. Turdybekov. 相似文献
10.
A. Zh. Turmukhambetov S. M. Adekenov K. M. Turdybekov Yu. V. Gatilov 《Chemistry of Natural Compounds》1991,27(3):292-295
By extraction with acetone and chromatography of the resin on a column of type KSK silica gel the epigeal part ofArtemisia gracilescens has yielded the new sesquiterpene lactone gracilin, for which the structure of 1-oxo-6, 7,11(H)-eudesm-4(5)-en-6,12-olide is proposed.Institute of Organic Synthesis and Coal Chemistry, Academy of Sciences of the Kazakh SSR, Karaganda. Translated from Khimiya Prirodnykh Soedinenii, No. 3, pp. 339–343, May–June, 1991. 相似文献