Výsledky vyhledávání - "Dimitry V Avilov"

Synthesis of Coumarins, 4-Hydroxycoumarins, and 4-Hydroxyquinolinones by Tellurium-Triggered Cyclizations1

Autor: Donald C. Dittmer, Dimitry V. Avilov, Qun Li

Publikováno v: The Journal of Organic Chemistry. 70:4682-4686

Coumarins, 4-hydroxycoumarins, and 4-hydroxyquinolin-2(1H)-ones can be conveniently prepared by treatment of alpha-halocarboxylic acid esters of salicylaldehyde, o-hydroxyacetophenone, methyl salicylate, and methyl N-methyl- or N-phenylanthranilates

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ac5d037a2d2498e0ffa546b51f7d1d80
https://doi.org/10.1021/jo050070u

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Highly diastereoselective aza-aldol reactions of a chiral Ni(II) complex of glycine with imines. An efficient asymmetric approach to 3-perfluoroalkyl-2,3-diamino acids

Autor: Valery P. Kukhar, Dimitry V Avilov, N Mischenko, Vadim A. Soloshonok, Luc Van Meervelt

Publikováno v: Tetrahedron Letters. 38:4671-4674

The LiCl/base-assisted asymmetric aldol-type addition reaction between the N-(p-methoxyphenyl)imine of trifluoroacetaldehyde and the chiral non-racemic Ni(II) complex of the Schiff base of glycine with (S)-o-[N-(N-benzylprolyl)amino]benzophenone was

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::32ab24c4c35414f517bd61241d0d43f2
https://doi.org/10.1016/s0040-4039(97)00963-5

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Transition Metal/Base-Catalyzed Aldol Reactions of Isocyanoacetic Acid Derivatives with Prochiral Ketones, a Straightforward Approach to Stereochemically Defined β,β-Disubstituted-β-hydroxy-α-amino Acids.1 Scope and Limitations

Autor: Vadim A. Soloshonok, Kohki Ishikawa, Alexey D. Kacharov, Nobuya Nagashima, Dimitry V Avilov, Tamio Hayashi

Publikováno v: The Journal of Organic Chemistry. 62:3470-3479

A systematic study of the transition metal/base-catalyzed aldol reactions of methyl isocyanoacetate with a wide range of prochiral ketones, giving rise to the 4-(methoxycarbonyl)-5,5-disubstituted-...

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https://doi.org/10.1021/jo9623402

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Transition metal-catalyzed diastereoselective aldol reactions of prochiral ketones with methyl isocyanoacetate

Autor: Dimitry V Avilov, Alexey D. Kacharov, Vadim A. Soloshonok, Tamio Hayashi

Publikováno v: Tetrahedron Letters. 37:7845-7848

Systematic study of the transition metal-catalyzed aldol reactions of certain prochiral ketones with methyl isocyanoacetate has been made. High diastereoselectivity (80–98% de) of these condensations, leading to methyl (4R∗,5R∗)-4,5-dihydro-5,5

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https://doi.org/10.1016/0040-4039(96)01746-7

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Asymmetric aldol reactions of trifluoromethyl ketones with a chiral Ni(II) complex of glycine: Stereocontrolling effect of the trifluoromethyl group

Autor: Vadim A. Soloshonok, Dimitry V Avilov, Valery P. Kukhar

Publikováno v: Tetrahedron. 52:12433-12442

Asymmetric aldol reactions between trifluoromethyl ketones and a Ni(II) complex of the Schiff base of glycine with (S)-o-[N-(N-benzylprolyl)amino]benzophenone (BPB) have been studied. Sterically demanding aryl and sec-alkyl trifluoromethyl ketones, a

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https://doi.org/10.1016/0040-4020(96)00741-7

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Highly diastereoselective asymmetric aldol reactions of chiral Ni(II)-complex of glycine with alkyl trifluoromethyl ketones

Autor: Dimitry V Avilov, Valery P. Kukhar, Vadim A. Soloshonok

Publikováno v: Tetrahedron: Asymmetry. 7:1547-1550

Asymmetric aldol reactions between prochiral trifluoromethyl ketones and Ni(II)-complex of monochiral Schiff base of glycine with ( S )- o -[ N -( N -benzylprolyl)amino]benzophenone (BBP) are described. General stereodirecting features of the trifluo

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https://doi.org/10.1016/0957-4166(96)00177-2

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Asymmetric aldol reactions of chiral Ni(II)-complex of glycine with aliphatic aldehydes. Stereodivergent synthesis of syn-(2S)- and syn-(2R)-β-alkylserines

Autor: Nicolai S. Ikonnikov, Yuri N. Belokon, Vadim A. Soloshonok, Tatiana F. Savel'eva, Valery P. Kukhar, Konstantin A. Kochetkov, Nikolai I. Raevsky, Vitali I. Tararov, Yuri T. Struchkov, Alexander P. Pysarevsky, Dimitry V Avilov, T. D. Churkina, S. A. Orlova

Publikováno v: Tetrahedron: Asymmetry. 6:1741-1756

Stereoselectivity of aldol reactions between aliphatic aldehydes and Ni(II)-complex of chiral non-racemic Schiff base of glycine with ( S )- o -[ N -( N -benzylprolyl)amino]benzophenone (BPB) in the presence of excess of MeONa, has been studied as a

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https://doi.org/10.1016/0957-4166(95)00220-j

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