B. Usachev

发表

Synthesis of 3-(trifluoromethyl)indeno[2,1-c]pyran-1,9-diones from 4-aryl-3-carbethoxy-6-(trifluoromethyl)-2-pyrones and their reaction with sodium azide leading to new carbostyril derivatives

V. Y. Sosnovskikh, S. Usachev, B. Usachev, 2014 .

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

G. Röschenthaler, V. Y. Sosnovskikh, B. Usachev, 2005 .

Chemistry of fluoroalkyl cyanides

B. Usachev, 2020 .

Chemistry of fluoroalkyl-substituted 1,2,3-triazoles

B. Usachev, 2018, Journal of Fluorine Chemistry.

1-/2-/3-Fluoroalkyl-substituted indoles, promising medicinally and biologically beneficial compounds: Synthetic routes, significance and potential applications

B. Usachev, 2016 .

6-(Trifluoromethyl)-2H-pyran-2-ones: Promising CF3-bearing conjugated cyclic diene and electrophilic building-blocks

B. Usachev, 2015 .

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

B. Usachev, V. Sosnovskikh, 2004 .

Synthesis of 1-(2-polyfluoroacylaminophenyl)-3-polyfluoroalkylpropane-1,3-diones and 2-polyfluoroalkyl-4-quinolones

A. Y. Sizov, B. Usachev, V. Sosnovskikh, 2002 .

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.

A. Y. Sizov, I. Vorontsov, B. Usachev, 2003, Organic letters.

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

B. Usachev, D. L. Obydennov, V. Sosnovskikh, 2012 .

Regioselective nucleophilic 1,4-trifluoromethylation of 2-polyfluoroalkylchromones with (trifluoromethyl)trimethylsilane. Synthesis of fluorinated analogs of natural 2,2-dimethylchroman-4-ones and 2,2-dimethylchromenes.

G. Röschenthaler, B. Usachev, D. Sevenard, 2003, The Journal of organic chemistry.

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

G. Röschenthaler, B. Usachev, D. Sevenard, 2003 .

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

B. Usachev, R. Irgashev, M. A. Barabanov, 2005 .

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

B. Usachev, R. Irgashev, V. Sosnovskikh, 2009 .

2-(Trifluoromethyl)-4H-pyran-4-ones: Convenient, available and versatile building-blocks for regioselective syntheses of trifluoromethylated organic compounds

B. Usachev, 2015 .

2-Polyfluoroalkylchromones. 10. Synthesis of regioisomeric 3-(2-hydroxyaryl)-5-polyfluoroalkyl- and 5-(2-hydroxyaryl)-3-polyfluoroalkylisoxazoles and determination of their structures by 1H, 19F, and 13C NMR spectroscopy

B. Usachev, V. Sosnovskikh, A. Sizov, 2002 .

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

M. Kodess, B. Usachev, V. Sosnovskikh, 2004 .

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

B. Usachev, M. A. Barabanov, V. Sosnovskikh, 2004 .

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

G. Röschenthaler, B. Usachev, D. Sevenard, 2003 .

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

B. Usachev, V. Sosnovskikh, 2002 .

2-Polyfluoroalkylchromones. 12. Nitration of 5,7-dimethyl-2-polyhaloalkylchromones and complete assignment of signals in the 1H and 13C NMR spectra of 5,7-dimethyl-2-trifluoromethylchromone and its mono- and dinitro derivatives

M. Kodess, B. Usachev, V. Sosnovskikh, 2002 .

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

B. Usachev, V. Sosnovskikh, 2001 .

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

B. Usachev, V. Sosnovskikh, 2000 .

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

B. Usachev, M. Shafeev, V. Sosnovskikh, 2006 .

Synthesis of isomerically pure 3-(5-trifluoromethyl-1,2,3-triazol-4-yl)cinnamic acid derivatives via the reaction of 4-aryl-6-trifluoromethyl-2-pyrones with sodium azide

S. Usachev, B. Usachev, O. Eltsov, 2014 .

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

G. Röschenthaler, B. Usachev, D. L. Obydennov, 2012 .

7-Polyfluoroalkylnorkhellins: synthesis and reactions with alkyl mercaptoacetates

I. Vorontsov, B. Usachev, V. Sosnovskikh, 2003 .

Unexpected synthesis of dihydrothienocoumarin derivatives from 2-trifluoromethylchromones and ethyl mercaptoacetate

G. Röschenthaler, B. Usachev, E. Lork, 2001 .

Convenient synthesis of ethyl 4-aryl-6-(trifluoromethyl)-2-oxo-2H-pyran-3-carboxylates and 4-aryl-6-(trifluoromethyl)-2H-pyran-2-ones: novel highly reactive CF3-containing building blocks.

G. Röschenthaler, B. Usachev, D. L. Obydennov, 2008, Organic letters.

Synthesis and Some Properties of 6-Di(tri)fluoromethyl- (IV) and 5-Di(tri)fluoroacetyl-3-methyl-1-phenylpyrano[2,3-c]pyrazol-4(1H)-ones (XII)/(XIII).

B. Usachev, R. Irgashev, M. A. Barabanov, 2006 .

A novel redox reaction between 8-Aza-5,7-dimethyl-2-trifluoromethylchromone and alkyl mercaptoacetates. Facile synthesis of CF3-containing 2-pyridone derivatives.

B. Usachev, M. A. Barabanov, V. Sosnovskikh, 2003, The Journal of organic chemistry.

A novel redox reaction between 8-aza-5,7-dimethyl-2-trifluoromethylchromone and alkyl mercaptoacetates.

B. Usachev, M. A. Barabanov, V. Sosnovskikh, 2003, Organic letters.

First nucleophilic addition of acetylide to 1,3-diketonate anions: reaction of 1-aryl-4,4,4-trifluorobutane-1,3-diones with sodium acetylide

B. Usachev, 2011 .

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

M. Kodess, B. Usachev, V. Sosnovskikh, 2001 .

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

G. Röschenthaler, B. Usachev, D. Sevenard, 2005 .

A novel synthesis of 2-trichloromethylchromones and 7-trichloromethylnorkhellin

B. Usachev, V. Sosnovskikh, 2002 .

Spiro[4H-chromene-4,5′-isoxazolines] and related compounds: Synthesis and reactivities

M. Kodess, V. A. Anufriev, B. Usachev, 2006 .

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

G. Röschenthaler, B. Usachev, V. Sosnovskikh, 2002 .

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

S. Usachev, B. Usachev, V. Sosnovskikh, 2017, Chemistry of Heterocyclic Compounds.

Reactions of 2-Mono- and 2,6-Disubstituted 4-Pyrones with Phenylhydrazine as General Method for the Synthesis of 3-(N-Phenylpyrazolyl)Indoles

B. Usachev, D. L. Obydennov, V. Sosnovskikh, 2014, Chemistry of Heterocyclic Compounds.

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

M. Kodess, B. Usachev, D. L. Obydennov, 2009 .

Unusual Reaction of 2-(Trifluoromethyl)-1,2-dihydro-3λ6-thieno [2,3-c]chromen-3,3,4-triones with Hydrazine as a New Route to 3-Hydrazinopyridazine Derivatives.

I. Vorontsov, B. Usachev, V. Sosnovskikh, 2003 .

Unusual reaction of 2-(trifluoromethyl)-1,2-dihydro-3lambda(6)-thieno- [2,3-c]chromen-3,3,4-triones with hydrazine as a new route to 3-hydrazinopyridazine derivatives.

I. Vorontsov, B. Usachev, V. Sosnovskikh, 2002, The Journal of organic chemistry.

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

G. Röschenthaler, S. Usachev, B. Usachev, 2011 .

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.

S. Usachev, B. Usachev, G. Roeschenthaler, 2012 .

Convenient synthesis of ethyl 4-aryl-6-(trifluoromethyl)-2-oxo-2H-pyran-3-carboxylates and 4-aryl-6-(trifluoromethyl)-2H-pyran-2-ones: novel highly reactive CF3-containing building blocks.

G. Röschenthaler, B. Usachev, D. L. Obydennov, 2008, Organic letters.

ChemInform Abstract: A Convenient Synthesis of 4(5)-(2-Hydroxyaroyl)-5(4)-trifluoromethyl-1,2,3-triazoles from 2-Trifluoromethylchromones and Chromen-4-imines.

B. Usachev, V. Sosnovskikh, 2002 .

Reactions of 6-(tri- and 6-(difluoromethyl))comanic acids and their ethyl esters with aniline and its 2-substituted derivatives

B. Usachev, D. L. Obydennov, 2012 .

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. Usachev, D. L. Obydennov, V. Sosnovskikh, 2012, Russian Chemical Bulletin.

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

B. Usachev, D. L. Obydennov, V. Sosnovskikh, 2013 .

Trifluoroacetylation of Ethyl 2,4-Dioxopentanoate. The First Synthesis of 4-Oxo-6-(trifluoromethyl)-4H-pyran-2-carboxylic Acid and Its Derivatives.

B. Usachev, V. Sosnovskikh, I. A. Bizenkov, 2008 .

First Synthesis of 4‐Oxo‐6‐trifluoromethyl‐4H‐thiopyran‐2‐carboxylic Acid (III) and Its Derivatives.

S. Usachev, B. Usachev, V. Sosnovskikh, 2011 .

Synthesis of Isomerically Pure 3-(5-Trifluoromethyl-1,2,3-triazol-4-yl)cinnamic Acid Derivatives via the Reaction of 4-Aryl-6-trifluoromethyl-2-pyrones with Sodium Azide.

S. Usachev, B. Usachev, O. Eltsov, 2015 .

A Novel, Two-Step Synthesis of 4-Pyridone-3-carboxamides from 2-Cyano-4-pyrones.

B. Usachev, D. L. Obydennov, V. Sosnovskikh, 2013 .

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.

B. Usachev, M. A. Barabanov, V. Sosnovskikh, 2004 .

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

B. Usachev, M. Shafeev, V. Sosnovskikh, 2004 .

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

B. Usachev, D. L. Obydennov, V. Sosnovskikh, 2012 .

Reactions of 5,7-dimethyl-2-polyfluoroalkyl-8-azachromones with N-nucleophiles

B. Usachev, M. A. Barabanov, V. Sosnovskikh, 2003 .

2-Polyfluoroalkylchromones. 14. Synthesis of 4-chloro-3(5)-(2-hydroxyaryl)-5(3)-polyfluoroalkylpyrazoles

B. Usachev, V. Sosnovskikh, A. Sizov, 2003 .