Zobrazeno 1 - 10
of 22
pro vyhledávání: '"Z. A. Bredikhina"'
Autor:
A. A. Bredikhin, Alexander V. Pashagin, Z. A. Bredikhina, Olga A. Antonovich, Alexey V. Kurenkov
Publikováno v:
Tetrahedron: Asymmetry. 25:1015-1021
Asymmetric dihydroxylation of mono nitrophenyl allyl ethers leads to the corresponding non-racemic 3-(nitrophenoxy)-propane-1,2-diols 1a – c . As this takes place, regardless of the reagent used (AD-mix-α or AD-mix-β), the configuration of the pr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::523be20146214e027243df1ef9a6c57b
https://doi.org/10.1016/j.tetasy.2014.05.008
https://doi.org/10.1016/j.tetasy.2014.05.008
Autor:
Dmitry V. Zakharychev, Z. A. Bredikhina, Robert R. Fayzullin, A. A. Bredikhin, A. V. Pashagin, Aidar T. Gubaidullin
Publikováno v:
Crystal Growth & Design. 14:1676-1683
A synthetic precursor of the chiral drug timolol, 4-[4-(oxiran-2-ylmethoxy)-1,2,5-thiadiazol-3-yl]-morpholine (2) represents a rare case of conglomerate with partial solid solution. This fact was e...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::24956a1db518ef7bbc674a9b34c47d23
https://doi.org/10.1021/cg4017905
https://doi.org/10.1021/cg4017905
Autor:
V. G. Novikova, Z. A. Bredikhina, Dilyara R. Sharafutdinova, Yu. Ya. Efremov, A. A. Bredikhin
Publikováno v:
Russian Chemical Bulletin. 57:2320-2323
Effective methods for the synthesis of nonracemic 4- and 2-methoxyphenyl glycerol ethers from nonracemic 3-chloropropanediols and by direct resolution of the racemate, respectively, were developed. Some existing discrepancies related to the to chirop
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ff60ea49bc2de0a26cde2c8cb86dd0ed
https://doi.org/10.1007/s11172-008-0328-9
https://doi.org/10.1007/s11172-008-0328-9
Autor:
Olga A. Antonovich, Alexander V. Pashagin, Alexey V. Kurenkov, Z. A. Bredikhina, A. A. Bredikhin
Publikováno v:
ChemInform. 46
Regardless of the reagent used (AD-mix-α or AD-mix-β), the configuration of the predominant enantiomer formed in the Sharpless asymmetric dihydroxylation of p- and m-nitrophenyl allyl ethers is opposite to the configuration of the product derived f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eff67426d623f57f761c994a70c09131
https://doi.org/10.1002/chin.201508024
https://doi.org/10.1002/chin.201508024
Autor:
Nail M. Azancheev, E. I. Strunskaya, Dilyara R. Sharafutdinova, A. A. Bredikhin, V. G. Novikova, Z. A. Bredikhina
Publikováno v:
Russian Chemical Bulletin. 53:213-218
The enantioselective partial hydrolysis of a number of racemic aryl glycidyl ethers in the presence of chiral Co(salen)-catalyst was studied. The enantiomeric composition of the isolated (R)-aryl glycidyl ethers was analyzed by 31P NMR using opticall
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c4a86611e6db56bd9c15fd3675e9b7e8
https://doi.org/10.1023/b:rucb.0000024851.29744.21
https://doi.org/10.1023/b:rucb.0000024851.29744.21
Publikováno v:
Russian Journal of Organic Chemistry. 37:1330-1334
3-Aryloxy-1,2,5-thiadiazoles were synthesized by the Ullmann reaction either from 3-chloro-1,2,5- thiadiazoles and phenols having donor substituents or from 3-hydroxy-1,2,5-thiadiazoles and chlorobenzenes containing acceptor substituents.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::62680da271e97894927669433f5d1aa3
https://doi.org/10.1023/a:1013148125019
https://doi.org/10.1023/a:1013148125019
Publikováno v:
Russian Chemical Bulletin. 49:1753-1756
The reactions of 4-chloromethyl-1,3,2-dioxathiolane 2-oxides with PhONa in EtOH are accompanied by ring opening under the action of the ethoxide ion rather than leading to a rearrangement of the starting molecule as has been assumed previously. Under
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ee4b95586fb6ac4b5fe92bc909dba1b5
https://doi.org/10.1007/bf02496348
https://doi.org/10.1007/bf02496348
Autor:
A. A. Bredikhin, Z. A. Bredikhina, Alexander V. Pashagin, E. I. Strunskaya, Igor A. Litvinov, A. T. Gubaydullin
Publikováno v:
Russian Chemical Bulletin. 48:2086-2090
2,3-Epoxy alcohols (glycidols) react with carboxylic acid dichlorides to form cyclic esters of 3-chloro-1,2-diols. The reaction proceeds with complete retention of the configuration of the C(2) atom of the initial glycidol and with predominant (but n
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6ffd2148c391d8d5843a84f7fb4c9a24
https://doi.org/10.1007/bf02494853
https://doi.org/10.1007/bf02494853
Publikováno v:
ChemInform. 23
The condensation of thiosemicarbazones with bromopyruvic acid gives thiazolylhydrazone hydrobromides, which were converted to the free bases. The question of the site of protonation was studied by PMR spectroscopy. The possibility of self-protonation
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4a96368ee965364ee37411431d7b50bb
https://doi.org/10.1002/chin.199238153
https://doi.org/10.1002/chin.199238153
Autor:
Z. A. Bredikhina, B. I. Buzykin
Publikováno v:
ChemInform. 24
A series of different 1,3,5-trisubstituted 1,2,4-triazoles 9 have been readily prepared by simple oxidation of corresponding N-alkylamide arylhydrazones (amidrazones) 5 with hydrogen peroxide or potassium permanganate
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::04715517da982959c607b50f694b3ba2
https://doi.org/10.1002/chin.199338187
https://doi.org/10.1002/chin.199338187