Usachev, N. Ya.: search on Z-Library

The world's largest scientific articles store. 70,000,000+ articles for free.

1

A simple and convenient synthesis of 3-[5-(trifluoromethyl)-1,2,3-triazol-4-yl]cinnamic acids from 4-aryl-6-(trifluoromethyl)-2H-pyran-2-ones and sodium azide

Boris I. Usachev, Sergey A. Usachev, Gerd-Volker Röschenthaler, Vyacheslav Ya. Sosnovskikh

Journal:

Tetrahedron Letters

Year:

2011

Language:

english

File:

PDF, 270 KB

english, 2011

2

2-Polyfluoroalkylchromones. 8. 2-Trifluoromethyl- and 6-nitro-2-trifluoromethylchromones in reactions with amines

V. Ya. Sosnovskikh, B. I. Usachev

Journal:

Russian Chemical Bulletin

Year:

2001

Language:

english

File:

PDF, 252 KB

english, 2001

3

Novel chemical modifications at the 4-position of chromones. Synthesis and reactivity of 4H-chromene-4-spiro-5′-isoxazolines and related compounds

Vyacheslav Ya. Sosnovskikh, Boris I. Usachev, Aleksei Yu. Sizov, Mikhail I. Kodess

Journal:

Tetrahedron Letters

Year:

2004

Language:

english

File:

PDF, 269 KB

english, 2004

4

Regioselective synthesis of trifluoromethylated 3-(pyrazolyl)indoles on the basis of 6-(trifluoromethyl)comanic acid

Boris I. Usachev, Dmitrii L. Obydennov, Vyacheslav Ya. Sosnovskikh

Journal:

Journal of Fluorine Chemistry

Year:

2012

Language:

english

File:

PDF, 512 KB

english, 2012

5

New derivatives of 6-phenylcomanic acid

B. I. Usachev, D. L. Obydennov, M. I. Kodess, G. -V. Röschenthaler, V. Ya. Sosnovskikh

Journal:

Russian Chemical Bulletin

Year:

2009

Language:

english

File:

PDF, 264 KB

english, 2009

6

Photochemical properties of photosystem 1 immobilized in a mesoporous semiconductor matrix

V. V. Nikandrov, Ya. V. Borisova, E. A. Bocharov, M. A. Usachev, G. V. Nizova, V. A. Nadtochenko, E. P. Lukashev, B. V. Trubitsin, A. N. Tikhonov, V. N. Kurashov, M. D. Mamedov, A. Yu. Semenov

Journal:

High Energy Chemistry

Year:

2012

Language:

english

File:

PDF, 316 KB

english, 2012

7

A Novel Redox Reaction between 8-Aza-5,7-dimethyl-2-trifluoromethylchromone and Alkyl Mercaptoacetates

Sosnovskikh, Vyacheslav Ya., Barabanov, Mikhail A., Usachev, Boris I.

Journal:

Organic Letters

Year:

2003

Language:

english

File:

PDF, 69 KB

english, 2003

8

Oxidative dehydrogenation of ethane to ethylene in a system with circulating microspherical metal oxide oxygen carrier: 1. Synthesis and study of the catalytic system

Khadzhiev, S. N., Usachev, N. Ya., Gerzeliev, I. M., Belanova, E. P., Kalinin, V. P., Kharlamov, V. V., Kazakov, A. V., Kanaev, S. A., Starostina, T. S., Popov, A. Yu.

Journal:

Petroleum Chemistry

Year:

2015

Language:

english

File:

PDF, 261 KB

english, 2015

9

Synthesis of 6H,7H-pyrido[2,1-a]isoquinolinium zwitterions from 6-nitro-2-polyfluoroalkylchromones and 1,3,3-trimethyl-3,4-dihydroisoquinolines

Sosnovskikh, V. Ya., Usachev, B. I., Vshivkova, T. S., Shklyaev, Yu. V.

Journal:

Russian Chemical Bulletin

Year:

2014

Language:

english

File:

PDF, 334 KB

english, 2014

10

Trifluoroacetylation of 2-acetyldimedone

V. Ya. Sosnovskikh, B. I. Usachev, E. A. Bogdanov

Journal:

Russian Chemical Bulletin

Year:

2001

Language:

english

File:

PDF, 228 KB

english, 2001

11

Synthesis and some properties of 6-di(tri)fluoromethyl-and 5-di(tri)fluoroacetyl-3-methyl-1-phenylpyrano[2,3-c]pyrazol-4(1H)-ones

V. Ya. Sosnovskikh, M. A. Barabanov, B. I. Usachev, R. A. Irgashev, V. S. Moshkin

Journal:

Russian Chemical Bulletin

Year:

2005

Language:

english

File:

PDF, 429 KB

english, 2005

12

First example of regioselective nucleophilic 1,6-addition of trimethyl(trifluoromethyl)silane to 4H-chromene derivatives

V. Ya. Sosnovskikh, B. I. Usachev, M. N. Permyakov, D. V. Sevenard, G.-V. Röschenthaler

Journal:

Russian Chemical Bulletin

Year:

2006

Language:

english

File:

PDF, 342 KB

english, 2006

13

Reactions of aromatic methyl ketimines with halonitriles as a new route to pyrimidines with two polyhaloalkyl groups

Vyacheslav Ya Sosnovskikh, Boris I Usachev, Gerd-Volker Röschenthaler

Journal:

Year:

2002

Language:

english

File:

PDF, 106 KB

english, 2002

14

Synthesis of 6-hydroxy-5,6-dihydro-2-pyrones and -pyridones by reaction of 4-aryl-6-trifluoromethyl-2-pyrones with water, hydrazine, and hydroxylamine

Usachev, Sergey A., Usachev, Boris I., Sosnovskikh, Vyacheslav Ya.

Journal:

Chemistry of Heterocyclic Compounds

Year:

2018

Language:

english

File:

PDF, 544 KB

english, 2018

15

Trifluoroacetylation of ethyl 2,4-dioxopentanoate. The first synthesis of 4-oxo-6-(trifluoromethyl)-4H-pyran-2-carboxylic acid and its derivatives

B. I. Usachev, I. A. Bizenkov, V. Ya. Sosnovskikh

Journal:

Russian Chemical Bulletin

Year:

2007

Language:

english

File:

PDF, 222 KB

english, 2007

16

Synthesis and some properties of 2-(polyfluoroalkyl)chroman-4-ols and 2-(polyfluoroalkyl)chroman-4-ones

V. Ya. Sosnovskikh, R. A. Irgashev, B. I. Usachev

Journal:

Russian Chemical Bulletin

Year:

2009

Language:

english

File:

PDF, 339 KB

english, 2009

17

Synthesis of 2-aroylmethyl-2-polyfluoroalkylchroman-4-ones

V. Ya. Sosnovskikh, B. I. Usachev, A. Yu. Sizov

Journal:

Russian Chemical Bulletin

Year:

2004

Language:

english

File:

PDF, 231 KB

english, 2004

18

New derivatives of dehydroacetic acid: synthesis of 2-polyfluoroalkyl-7-methylpyrano[4,3-b]pyran-4,5-diones

Vyacheslav Ya. Sosnovskikh, Boris I. Usachev, Andrei G. Blinov, Mikhail I. Kodess

Journal:

Mendeleev Communications

Year:

2001

Language:

english

File:

PDF, 109 KB

english, 2001

19

A Novel and Simple Synthesis of 2-(Trifluoromethyl)-4 H -thiochromen-4-ones

Usachev, Boris I., Sosnovskikh, Vyacheslav Ya., Shafeev, Mikhail A., Röschenthaler, Gerd-Volker

Journal:

Phosphorus Sulfur and Silicon and the Related Elements

Year:

2005

Language:

english

File:

PDF, 115 KB

english, 2005

20

Synthesis and reactivity of 2-polyfluoroalkylchromene-4(4H)-thiones

B. I. Usachev, M. A. Shafeev, V. Ya. Sosnovskikh

Journal:

Russian Chemical Bulletin

Year:

2004

Language:

english

File:

PDF, 436 KB

english, 2004

21

Regioselective solvent-sensitive reactions of 6-(trifluoromethyl)comanic acid and its derivatives with phenylhydrazine

Boris I. Usachev, Dmitrii L. Obydennov, Mikhail I. Kodess, Vyacheslav Ya. Sosnovskikh

Journal:

Tetrahedron Letters

Year:

2009

Language:

english

File:

PDF, 291 KB

english, 2009

22

Synthesis of γ-pyrone precursors by condensation of acetyl ketene dithioacetals with ethyl polyfluorocarboxylates and diethyl oxalate

Usachev, Sergey A., Sosnovskikh, Vyacheslav Ya.

Journal:

Chemistry of Heterocyclic Compounds

Year:

2016

Language:

english

File:

PDF, 314 KB

english, 2016

23

First synthesis of 4-oxo-6-trifluoromethyl-4H-thiopyran-2-carboxylic acid and its derivatives

B. I. Usachev, S. A. Usachev, G.-V. Röschenthaler, V. Ya. Sosnovskikh

Journal:

Russian Chemical Bulletin

Year:

2010

Language:

english

File:

PDF, 214 KB

english, 2010

24

A simple and highly efficient synthesis of N-phenyl-2-polyfluoroalkyl-4-quinolones from 2-anilinoacetophenone and RFCO2Et

Boris I. Usachev, Vyacheslav Ya. Sosnovskikh

Journal:

Journal of Fluorine Chemistry

Year:

2004

Language:

english

File:

PDF, 81 KB

english, 2004

25

A Simple One-Pot Synthesis of 2,6-Disubstituted 4-(Polyfluoroalkyl)pyridines and -pyrimidines by Reaction of 2-Polyfluoroalkylchromones with Aromatic Methyl Ketimines and Amidines

Sosnovskikh, Vyacheslav Ya., Usachev, Boris I., Sizov, Aleksei Yu., Barabanov, Mikhail A.

Journal:

Year:

2004

Language:

english

File:

PDF, 93 KB

english, 2004

26

ChemInform Abstract: 2-Polyfluoroalkylchromones. Part 8. 2-Trifluoromethyl- and 6-Nitro-2-trifluoromethylchromones in Reactions with Amines.

V. Ya. Sosnovskikh, B. I. Usachev

Journal:

Year:

2002

File:

PDF, 30 KB

2002

27

2-Polyfluoroalkylchromones. 5. Nitration and chlorination of 2-trifluoromethylchromones

V. Ya. Sosnovskikh, B. I. Usachev

Journal:

Russian Chemical Bulletin

Year:

2000

Language:

english

File:

PDF, 234 KB

english, 2000

28

Synthesis of 4-aryl-6-methyl-7a-(trifluoromethyl)-2,4a,5,6,7,7a-hexahydropyrano[2,3-c]pyrrol-2-ones from 4-aryl-6-(trifluoromethyl)-2-pyrones, sarcosine, and formaldehyde

Usachev, Sergey A., Popova, Natal’ya V., Moshkin, Vladimir S., Sosnovskikh, Vyacheslav Ya.

Journal:

Chemistry of Heterocyclic Compounds

Year:

2015

Language:

english

File:

PDF, 274 KB

english, 2015

29

Synthesis of 2-(trifluoromethyl)-1,2-dihydro-4H-thieno[2,3-c]chromen-4-ones and 2-(trifluoromethyl)-4H-thieno[2,3-c]chromen-4-ones from 2-trifluoromethylchromones and ethyl mercaptoacetate

Vyacheslav Ya Sosnovskikh, Boris I Usachev, Dmitri V Sevenard, Gerd-Volker Röschenthaler

Journal:

Year:

2003

Language:

english

File:

PDF, 199 KB

english, 2003

30

2-Cyano-6-(trifluoromethyl)-4H-pyran-4-one: A novel versatile CF3-containing building block

Boris I. Usachev, Dmitrii L. Obydennov, Gerd-Volker Röschenthaler, Vyacheslav Ya. Sosnovskikh

Journal:

Journal of Fluorine Chemistry

Year:

2012

Language:

english

File:

PDF, 314 KB

english, 2012

31

Convenient Synthesis of Ethyl 4-Aryl-6-(trifluoromethyl)-2-oxo-2 H -pyran-3-carboxylates and 4-Aryl-6-(trifluoromethyl)-2 H -pyran-2-ones: Novel Highly Reactive CF 3 -Containing Building Blocks

Usachev, Boris I., Obydennov, Dmitrii L., Röschenthaler, Gerd-Volker, Sosnovskikh, Vyacheslav Ya.

Journal:

Organic Letters

Year:

2008

Language:

english

File:

PDF, 107 KB

english, 2008

32

A Novel Redox Reaction between 8-Aza-5,7-dimethyl-2-trifluoromethylchromone and Alkyl Mercaptoacetates. Facile Synthesis of CF 3 -Containing 2-Pyridone Derivatives

Sosnovskikh, Vyacheslav Ya., Barabanov, Mikhail A., Usachev, Boris I.

Journal:

Journal of Organic Chemistry

Year:

2004

Language:

english

File:

PDF, 183 KB

english, 2004

33

Nucleophilic trifluoromethylation of RF-containing 4-quinolones, 8-aza- and 1-thiochromones with (trifluoromethyl)trimethylsilane

Vyacheslav Ya. Sosnovskikh, Boris I. Usachev, Dmitri V. Sevenard, Gerd-Volker Röschenthaler

Journal:

Journal of Fluorine Chemistry

Year:

2005

Language:

english

File:

PDF, 221 KB

english, 2005

34

2-Polyfluoroalkylchromones. 6. Synthesis of substituted 2-morpholino-2-trifluoromethylchroman-4-ones

V. Ya. Sosnovskikh, B. I. Usachev

Journal:

Russian Chemical Bulletin

Year:

2001

Language:

english

File:

PDF, 240 KB

english, 2001

35

A convenient synthesis of 4(5)-(2-hydroxyaroyl)-5(4)-trifluoromethyl-1,2,3-triazoles from 2-trifluoromethylchromones and chromen-4-imines

Vyacheslav Ya. Sosnovskikh, Boris I. Usachev

Journal:

Mendeleev Communications

Year:

2002

Language:

english

File:

PDF, 96 KB

english, 2002

36

2-Polyfluoroalkylchromones. 7. Reactions of 6-substituted 2-tetra- and 2-pentafluoroethylchromones with 2-aminoethanol

V. Ya. Sosnovskikh, B. I. Usachev, A. P. Safronov

Journal:

Russian Chemical Bulletin

Year:

2001

Language:

english

File:

PDF, 247 KB

english, 2001

37

Reaction of 2-Polyfluoroalkylchromones with 1,3,3-Trimethyl-3,4-dihydroisoquinolines and Methylketimines as a Direct Route to Zwitterionic Axially Chiral 6,7-Dihydrobenzo[ a ]quinolizinium Derivatives and 2,6-Diaryl-4-polyfluoroalkylpyridines

Sosnovskikh, Vyacheslav Ya., Usachev, Boris I., Sizov, Aleksei Yu., Vorontsov, Ivan I., Shklyaev, Yurii V.

Journal:

Organic Letters

Year:

2003

Language:

english

File:

PDF, 74 KB

english, 2003

38

A novel, two-step synthesis of 4-pyridone-3-carboxamides from 2-cyano-4-pyrones

Obydennov, Dmitrii L., Sidorova, Ekaterina S., Usachev, Boris I., Sosnovskikh, Vyacheslav Ya.

Journal:

Tetrahedron Letters

Year:

2013

Language:

english

File:

PDF, 294 KB

english, 2013

39

A Novel Synthesis of 2-Trichloromethylchromones and 7-Trichloromethylnorkhellin

Sosnovskikh, Vyacheslav Ya., Usachev, Boris I.

Journal:

Year:

2002

Language:

english

File:

PDF, 53 KB

english, 2002

40

7-Polyfluoroalkylnorkhellins: synthesis and reactions with alkyl mercaptoacetates

Vyacheslav Ya Sosnovskikh, Boris I Usachev, Ivan I Vorontsov

Journal:

Year:

2003

Language:

english

File:

PDF, 290 KB

english, 2003

41

Unusual Reaction of 2-(Trifluoromethyl)-1,2-dihydro-3λ 6 -thieno- [2,3- c ]chromen-3,3,4-triones with Hydrazine as a New Route to 3-Hydrazinopyridazine Derivatives

Sosnovskikh, Vyacheslav Ya., Usachev, Boris I., Vorontsov, Ivan I.

Journal:

Journal of Organic Chemistry

Year:

2002

Language:

english

File:

PDF, 130 KB

english, 2002

42

Partial oxidation of lower alkanes by active lattice oxygen of metal oxide systems: 2. Synthesis of solid contacts and syngas production in a pilot plant with a riser reactor

I. M. Gerzeliev, N. Ya. Usachev, A. Yu. Popov, S. N. Khadzhiev

Journal:

Petroleum Chemistry

Year:

2012

Language:

english

File:

PDF, 258 KB

english, 2012

43

A Novel and Simple Synthesis of Substituted Anilines by Reaction of 2-Polyfluoroalkylchromones with (Isopropylidene)isopropylamine

Sosnovskikh, Vyacheslav Ya., Usachev, Boris I., Sizov, Aleksei Yu.

Journal:

Year:

2004

Language:

english

File:

PDF, 56 KB

english, 2004

44

A Simple and Efficient Synthesis of 2-Methyl-2-trifluoromethylchroman-4-ones from 2-Trifluoromethyl-4 H -chromen-4-imines and Malonic Acid

Sosnovskikh, Vyacheslav Ya., Usachev, Boris I.

Journal:

Year:

2002

Language:

english

File:

PDF, 55 KB

english, 2002

45

2-Trif luoromethyl-4H-thiochromen-4-one and 2-trif luoromethyl-4H-thiochromene-4-thione: Synthesis and reactivities

B. I. Usachev, M. A. Shafeev, V. Ya. Sosnovskikh

Journal:

Russian Chemical Bulletin

Year:

2006

Language:

english

File:

PDF, 319 KB

english, 2006

46

Unexpected influence of tetra- and pentafluoroethyl groups on the direction of reactions of 2-polyfluoroalkylchromones with 2-aminoethanol

Vyacheslav Ya. Sosnovskikh, Boris I. Usachev

Journal:

Mendeleev Communications

Year:

2000

Language:

english

File:

PDF, 151 KB

english, 2000

47

Regioselective synthesis of 2- and 5-trifluoromethyl-or 2- and 5-difluoromethylpyrazolo[1,5-c]pyrimidines based on 7,7,7-trifluoro-or 7,7-difluoro-2,4,6-trioxoheptanoic and 6-trifluoromethyl-or 6-difluoromethylcomanic acids

B. I. Usachev, D. L. Obydennov, V. Ya. Sosnovskikh

Journal:

Russian Chemical Bulletin

Year:

2012

Language:

english

File:

PDF, 367 KB

english, 2012

48

The first example of a preparative 1,4-perfluoroalkylation using (perfluoroalkyl)trimethylsilanes

V.Ya Sosnovskikh, D.V Sevenard, B.I Usachev, G.-V Röschenthaler

Journal:

Tetrahedron Letters

Year:

2003

Language:

english

File:

PDF, 141 KB

english, 2003

49

2-Polyfluoroalkylchromones. 13. Synthesis and nitration of 6,8-dibromo-2-trifluoromethylchromone

V. Ya. Sosnovskikh, B. I. Usachev

Journal:

Russian Chemical Bulletin

Year:

2002

Language:

english

File:

PDF, 236 KB

english, 2002

50

Reactions of 1,3,3-trimethyl-3,4-dihydroisoquinolines with polyhaloalkanonitriles

V. Ya. Sosnovskikh, B. I. Usachev, Yu. V. Shklyaev

Journal:

Russian Chemical Bulletin

Year:

2004

Language:

english

File:

PDF, 283 KB

english, 2004

To build up a library is to create a life. It’s never just a random collection of books.

— Carlos María Domínguez

Official channel

Z-Library Desktop Launcher

Z-Library Since 2009 support@1delivery.pm

EnglishРусскийEspañolItalianoελληνικάاللغة العربيةBahasa IndonesiaBahasa Malaysiaहिन्दीDeutschFrançaisPortuguêsУкраїнськаPolski中文繁體中文日本語Tiếng ViệtAzərbaycan DiliՀայոց լեզուภาษาไทยTürk Diliქართველიবাংলাپښتوతెలుగుاردو한국어SrpskiБългарски