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141.
142.
Tolstikov G. A. Khalilov L. M. Baltina L. A. Kondratenko R. M. Panasenko A. A. Vasil'eva E. V. 《Chemistry of Natural Compounds》1985,21(5):605-612
The13C NMR spectra of 22 derivatives of 18α- and 18β-glycyrrhetic acids that have been investigated and an assignment of the signals has been made. It has been shown that a modification of the carboxy group of glycyrrhetic acid leads mainly to a change in the chemical shifts of the α-, β-, and γ-carbon atoms of ring E. The assignment of a number of signals has been confirmed by the use of the shift reagent Eu(fod)s. It has been established that the C28 and C16 signals are the most sensitive to a change in the C18 configuration in the spectra of glycyrrhetic acid derivatives.
相似文献143.
144.
U. M. Dzhemilev M. M. Sirazova R. V. Kunakova A. A. Panasenko L. M. Khalilov 《Russian Chemical Bulletin》1985,34(2):339-343
Conclusions The catalyzed (by palladium complexes) telomerization of butadiene with butane- and p-toluenesulfonamides, which leads to difficult-to-obtain N-substituted unsaturated sulfonamides in high yields, was realized.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 2, pp. 372–376, February, 1985. 相似文献
145.
Sulfur ylides. 3. Synthesis of keto-group stabilized amino-containing sulfur ylides from amino acids
G. A. Tolstikov F. Z. Galin S. N. Lakeev L. M. Khalilov V. S. Sultanova 《Russian Chemical Bulletin》1990,39(3):535-541
An effective path of synthesis was developed of new synthetic intermediates, the optically active, keto-group stabilized amino-substituted sulfur ylides.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 3, pp. 612–620, March, 1990. 相似文献
146.
147.
L. M. Khalilov A. A. Fatykhov V. S. Sultanova F. Z. Makaev F. Z. Galin G. A. Tolstikov A. A. Panasenko 《Chemistry of Natural Compounds》1989,25(2):231-236
The13C spectra of 25 new substituted cyclopropanes of the pyrethoid series have been investigated and a stereochemical assignment has been made of the stereoisomers formed. As the criterion for stereochemical assignment it is proposed to use the values of the chemical shifts for the -carbon atoms of the substituents in the cyclopropane ring.Institute of Chemistry, Bashkir Branch, USSR Academy of Sciences, Ufa. Translated from Khimiya Prirodnykh Soedinenii, No. 2, pp. 266–272, March–April, 1989. 相似文献
148.
U. M. Dzhemilev A. G. Ibragimov E. V. Gribanova L. M. Khalilov 《Russian Chemical Bulletin》1988,37(2):347-349
Conclusions Organomagnesium compounds have been prepared by the direct metallation of cyclopentadiene, indene, fluorene, and cyclooctatetraene and by highly reactive magnesium. Their crosscombination with allyl and propargyl electrophiles in the presence of metal complex catalysts has been studied, this leading to the allyl and propargyl substituted hydrocarbons being obtained in high yields.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 2, pp. 428–431, February, 1988. 相似文献
149.
V. N. Odinokov R. G. Savchenko S. R. Afon’kina L. M. Khalilov 《Russian Journal of Organic Chemistry》2005,41(3):376-385
Ozonolysis of 24,25/25,26-anhydro derivatives of 20-hydroxy-2,3:20,22-di-O-isopropylidene-ecdysone and 2,3-di-O-acetyl-20-hydroxy-20,22-O-isopropylideneecdysone, followed by trifluoromethylation of the corresponding 25-oxo derivatives afforded 2,3:20,22-di-O-isopropylidene- and 20,22-O-isopropylidene-27,27, 27-trifluoro-20-hydroxyecdysones.__________Translated from Zhurnal Organicheskoi Khimii, Vol. 41, No. 3, 2005, pp. 387–395.Original Russian Text Copyright © 2005 by Odinokov, Savchenko, Afon’kina, Khalilov.For communication LXVI, see [1]. 相似文献
150.
L. F. Chertanova F. A. Akbutina S. A. Torosyan L. M. Khalilov M. S. Miftakhov 《Russian Chemical Bulletin》1997,46(11):1875-1877
In the crystal, the 5Z-carboxymethylene-2-chloro-4,4-dimethoxy-3-N,N-dimethyl-aminocyclopent-2-en-1-one molecule has an intramolecular hydrogen bond (stabilized in the chelate form) between
the proton of the carboxy group and the oxygen atom of the keto group. The methoxy groups are in an antiperiplanar conformation
and are synclinal with respect to the dimethylamino group and the double bond of the carboxylmethylene fragment.
Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 11, pp. 1979–1981, November, 1997. 相似文献