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1

A one-pot regioselective synthetic route to vinyl sulfones from terminal epoxides in aqueous media

Chawla, Ruchi, Kapoor, Ritu, Singh, Atul K., Yadav, Lal Dhar S.

Journal:

Green Chemistry

Year:

2012

Language:

english

File:

PDF, 139 KB

english, 2012

2

In situ slow release of isocyanates: synthesis and organocatalytic application of N-acylureas

Singh, Atul K., Chawla, Ruchi, Yadav, Lal Dhar S.

Journal:

Tetrahedron Letters

Year:

2013

Language:

english

File:

PDF, 869 KB

english, 2013

3

Aerobic oxysulfonylation of alkenes using thiophenols: an efficient one-pot route to β-ketosulfones

Singh, Atul K., Chawla, Ruchi, Keshari, Twinkle, Yadav, Vinod K., Yadav, Lal Dhar S.

Journal:

Organic & Biomolecular Chemistry

Year:

2014

Language:

english

File:

PDF, 642 KB

english, 2014

4

Retracted article: Convenient access to strained trisubstituted 2-azetines from enals and chloramine-T in aqueous media

Singh, Atul K., Chawla, Ruchi, Yadav, Lal Dhar S.

Journal:

Green Chemistry

Year:

2012

Language:

english

File:

PDF, 117 KB

english, 2012

5

Novel Clay-Catalyzed Cyclization of Salicylaldehyde Semicarbazones to 2H-Benz[e]-1,3-oxazin-2-ones under Microwave Irradiation.

Lal Dhar S. Yadav, Sarvesh Singh, Amrish Singh

Journal:

Year:

2003

File:

PDF, 94 KB

2003

6

One-Pot Annulation of Pyrimidine Ring on Azoles under Microwave Irradiation and Solvent-Free Conditions.

Lal Dhar S. Yadav, Sarvesh Singh

Journal:

Year:

2003

File:

PDF, 128 KB

2003

7

Novel Annulation of the Thiete Ring on Imidazole Nucleus and LiI-Catalyzed Expansion of the Thiete Ring with Carbon Disulfide.

Lal Dhar S. Yadav, Sarvesh Singh

Journal:

Year:

2003

File:

PDF, 140 KB

2003

8

Microwave-Activated Solvent-Free Cascade Reactions Yielding Highly Functionalized 1,3-Thiazines.

Lal Dhar S. Yadav, Amrish Singh

Journal:

Year:

2003

File:

PDF, 87 KB

2003

9

ChemInform Abstract: A One-Pot [Bmim]OH-Mediated Synthesis of 3-Benzamidocoumarins.

Lal Dhar S. Yadav, Santosh Singh, Vijai K. Rai

Journal:

Year:

2009

File:

PDF, 18 KB

2009

10

ChemInform Abstract: A Novel One-Pot Stereoselective Synthesis of N-Protected α-Amino Acids from Morita—Baylis—Hillman Acetates.

Lal Dhar Singh Yadav, Vijai Kumar Rai, Santosh Singh

Journal:

Year:

2009

File:

PDF, 27 KB

2009

11

ChemInform Abstract: Catalyst-Free, Step and Pot Economic, Efficient Mercaptoacetylative Cyclization in H2O: Synthesis of 3-Mercaptocoumarins.

Lal Dhar S. Yadav, Santosh Singh, Vijai K. Rai

Journal:

Year:

2009

File:

PDF, 25 KB

2009

12

ChemInform Abstract: Carbonyl Umpolung Reactivity of Enals: NHC-Catalyzed Synthesis of Aldol Products via Epoxide Ring Opening.

Lal Dhar S. Yadav, Santosh Singh, Vijai K. Rai

Journal:

Year:

2010

File:

PDF, 32 KB

2010

13

ChemInform Abstract: NHC-Catalyzed Efficient Synthesis of β′-Amino Enones via Carbonyl Umpolung Reaction of Enals with Aziridines.

Lal Dhar S. Yadav, Vijai K. Rai, Santosh Singh, Pankaj Singh

Journal:

Year:

2010

File:

PDF, 26 KB

2010

14

ChemInform Abstract: The First One-Pot Synthesis of Morita—Baylis—Hillman Adducts Starting Directly from Alcohols.

Lal Dhar Singh Yadav, Vishnu Prabhakar Srivastava, Rajesh Patel

Journal:

Year:

2010

File:

PDF, 22 KB

2010

15

ChemInform Abstract: Expeditious Synthesis of Functionalized Piperidines by Regioselective Ring Opening of Aziridines by Enals Catalyzed by an N-Heterocyclic Carbene.

Santosh Singh, Vijai K. Rai, Pankaj Singh, Lal Dhar S. Yadav

Journal:

Year:

2011

File:

PDF, 26 KB

2011

16

ChemInform Abstract: N-Heterocyclic Carbene Catalyzed Cross Coupling of Aromatic Aldehydes with Baylis—Hillman Bromides: An Easy Access to α-Arylidene-γ-keto Esters.

Pankaj Singh, Santosh Singh, Vijai K. Rai, Lal Dhar S. Yadav

Journal:

Year:

2011

File:

PDF, 28 KB

2011

17

ChemInform Abstract: Nucleophilic Acylation of α-Haloketones with Aldehydes: An Umpolung Strategy for the Synthesis of 1,3-Diketones.

Santosh Singh, Pankaj Singh, Vijai K. Rai, Ritu Kapoor, Lal Dhar S. Yadav

Journal:

Year:

2011

File:

PDF, 27 KB

2011

18

ChemInform Abstract: Carbohydrate Building Blocks in the Ugi Three-Component Coupling Reaction: Convenient Annulation of Iminosugars on Imidazoles.

Vijai K. Rai, Santosh Singh, Pankaj Singh, Lal Dhar S. Yadav

Journal:

Year:

2011

File:

PDF, 29 KB

2011

19

ChemInform Abstract: Chiral Amine-Triggered Triple Cascade Reactions: A New Approach to Functionalized Decahydroquinolines.

Ankita Rai, Atul K. Singh, Santosh Singh, Lal Dhar S. Yadav

Journal:

Year:

2011

File:

PDF, 33 KB

2011

20

ChemInform Abstract: Stereoselective Cascade Reactions for Construction of Polyfunctionalized Octahydroquinolines via [2C + 2C + 1C,1N] Cyclization.

Ankita Rai, Atul K. Singh, Pankaj Singh, Lal Dhar S. Yadav

Journal:

Year:

2011

File:

PDF, 27 KB

2011

21

ChemInform Abstract: LiBr Catalyzed Solvent-Free Ring Expansion of Epoxides to 1,4-Oxathian-2-ones with α-Mercaptocarboxylic Acids.

Atul K. Singh, Ankita Rai, Lal Dhar S. Yadav

Journal:

Year:

2011

File:

PDF, 33 KB

2011

22

ChemInform Abstract: [2 + 2] Annulation of Aldimines with Sulfonic Acids: A Novel One-Pot cis-Selective Route to β-Sultams.

Ankita Rai, Vijai K. Rai, Atul K. Singh, Lal Dhar S. Yadav

Journal:

Year:

2011

File:

PDF, 33 KB

2011

23

[2 + 2] Annulation of Aldimines with Sulfonic Acids: A Novel One-Pot cis-Selective Route to β-Sultams

Ankita Rai, Vijai K. Rai, Atul K. Singh, Lal Dhar S. Yadav

Journal:

European Journal of Organic Chemistry

Year:

2011

Language:

english

File:

PDF, 135 KB

english, 2011

24

A one-pot [Bmim]OH-mediated synthesis of 3-benzamidocoumarins

Lal Dhar S. Yadav, Santosh Singh, Vijai K. Rai

Journal:

Tetrahedron Letters

Year:

2009

Language:

english

File:

PDF, 1.89 MB

english, 2009

25

NHC-catalyzed efficient synthesis of β′-amino enones via carbonyl umpolung reaction of enals with aziridines

Lal Dhar S. Yadav, Vijai K. Rai, Santosh Singh, Pankaj Singh

Journal:

Tetrahedron Letters

Year:

2010

Language:

english

File:

PDF, 2.69 MB

english, 2010

26

Nucleophilic acylation of α-haloketones with aldehydes: an umpolung strategy for the synthesis of 1,3-diketones

Santosh Singh, Pankaj Singh, Vijai K. Rai, Ritu Kapoor, Lal Dhar S. Yadav

Journal:

Tetrahedron Letters

Year:

2011

Language:

english

File:

PDF, 441 KB

english, 2011

27

Stereoselective cascade reactions for construction of polyfunctionalised octahydroquinolines via [2C+2C+1C,1N] cyclisation

Ankita Rai, Atul K. Singh, Pankaj Singh, Lal Dhar S. Yadav

Journal:

Tetrahedron Letters

Year:

2011

Language:

english

File:

PDF, 433 KB

english, 2011

28

LiBr catalyzed solvent-free ring expansion of epoxides to 1,4-oxathian-2-ones with α-mercaptocarboxylic acids

Atul K. Singh, Ankita Rai, Lal Dhar S. Yadav

Journal:

Tetrahedron Letters

Year:

2011

Language:

english

File:

PDF, 719 KB

english, 2011

29

Novel clay-catalysed cyclisation of salicylaldehyde semicarbazones to 2H-benz[e]-1,3-oxazin-2-ones under microwave irradiation

Lal Dhar S. Yadav, Sarvesh Singh, Amrish Singh

Journal:

Tetrahedron Letters

Year:

2002

Language:

english

File:

PDF, 79 KB

english, 2002

30

Microwave activated solvent-free cascade reactions yielding highly functionalised 1,3-thiazines

Lal Dhar S. Yadav, Amrish Singh

Journal:

Tetrahedron Letters

Year:

2003

Language:

english

File:

PDF, 103 KB

english, 2003

31

Synthesis of new 7H-1,3,4-thiadiazolo[3,2-a] [1,3,5] triazine-7-thiones as potential fungicides

Lal Dhar Singh Yadav, Atma Ram Misra, Harendra Singh

Journal:

Pest Management Science

Year:

1989

Language:

english

File:

PDF, 292 KB

english, 1989

32

Unprecedented dithiolation of enals via their NHC-catalysed umpolung reaction with organic disulfides

Singh, Santosh, Yadav, Lal Dhar S.

Journal:

Organic & Biomolecular Chemistry

Year:

2012

Language:

english

File:

PDF, 411 KB

english, 2012

33

Catalyst-free, step and pot economic, efficient mercaptoacetylative cyclisation in H2O: synthesis of 3-mercaptocoumarins

Yadav, Lal Dhar S., Singh, Santosh, Rai, Vijai K.

Journal:

Green Chemistry

Year:

2009

Language:

english

File:

PDF, 143 KB

english, 2009

34

ChemInform Abstract: Rapid Synthesis of Benzodiazepines by Ring Expansion of Aziridines with Anthranilic Acids by Using a Grinding Technique.

Atul K. Singh, Lal Dhar S. Yadav

Journal:

Year:

2012

File:

PDF, 33 KB

2012

35

ChemInform Abstract: NHC-Catalyzed Diastereoselective Synthesis of Multifunctionalized Piperidines via Cascade Reaction of Enals with Azalactones.

Atul K. Singh, Ruchi Chawla, Ankita Rai, Lal Dhar S. Yadav

Journal:

Year:

2012

File:

PDF, 39 KB

2012

36

An organocatalyzed highly regioselective one-pot approach to the synthesis of tetrahydrobenzofuranones

Ruchi Chawla, Atul K. Singh, Lal Dhar S. Yadav

Journal:

Tetrahedron Letters

Year:

2012

Language:

english

File:

PDF, 269 KB

english, 2012

37

ChemInform Abstract: Unprecedented Dithiolation of Enals via Their NHC-Catalyzed Umpolung Reaction with Organic Disulfides.

Santosh Singh, Lal Dhar S. Yadav

Journal:

Year:

2012

File:

PDF, 33 KB

2012

38

ChemInform Abstract: A One-Pot Regioselective Synthetic Route to Vinyl Sulfones from Terminal Epoxides in Aqueous Media.

Ruchi Chawla, Ritu Kapoor, Atul K. Singh, Lal Dhar S. Yadav

Journal:

Year:

2012

File:

PDF, 26 KB

2012

39

ChemInform Abstract: Organocatalytic Asymmetric Synthesis of 1,2,4-Trisubstituted Azetidines by Reductive Cyclization of Aza-Michael Adducts of Enones.

Ritu Kapoor, Ruchi Chawla, Santosh Singh, Lal Dhar S. Yadav

Journal:

Year:

2012

File:

PDF, 31 KB

2012

40

ChemInform Abstract: An Organocatalyzed Highly Regioselective One-Pot Approach to the Synthesis of Tetrahydrobenzofuranones.

Ruchi Chawla, Atul K. Singh, Lal Dhar S. Yadav

Journal:

Year:

2012

File:

PDF, 28 KB

2012

41

The direct thioesterification of aldehydes with disulfides via NHC-catalyzed carbonyl umpolung strategy

Santosh Singh, Lal Dhar S. Yadav

Journal:

Tetrahedron Letters

Year:

2012

Language:

english

File:

PDF, 612 KB

english, 2012

42

Organocatalyzed stereoselective construction of N-formylpiperidines via a Michael-aza-Henry-hemiaminalization reaction cascade

Ruchi Chawla, Ankita Rai, Atul K. Singh, Lal Dhar S. Yadav

Journal:

Tetrahedron Letters

Year:

2012

Language:

english

File:

PDF, 477 KB

english, 2012

43

Highly regioselective ring-opening of aziridines with arenesulfinates on water: a facile access to β-amino/vinyl sulfones

Chawla, Ruchi, Singh, Atul K., Yadav, Lal Dhar S.

Journal:

Year:

2013

Language:

english

File:

PDF, 316 KB

english, 2013

44

ChemInform Abstract: Click Reaction of Epoxides with Anthranilic Acids Using Neat Grinding to Access Benzoxazepines.

Singh, Atul K., Chawla, Ruchi, Yadav, Lal Dhar S.

Journal:

Year:

2012

File:

PDF, 25 KB

2012

45

ChemInform Abstract: The Direct Thioesterification of Aldehydes with Disulfides via NHC-Catalyzed Carbonyl Umpolung Strategy.

Singh, Santosh, Yadav, Lal Dhar S.

Journal:

Year:

2012

File:

PDF, 27 KB

2012

46

ChemInform Abstract: Organocatalyzed Stereoselective Construction of N-Formylpiperidines via a Michael-Aza-Henry-Hemiaminalization Reaction Cascade.

Chawla, Ruchi, Rai, Ankita, Singh, Atul K., Yadav, Lal Dhar S.

Journal:

Year:

2013

File:

PDF, 33 KB

2013

47

Syntheses of new 1,3,4-oxadiazolo[3,2-d]-1,3,4-dithiazines and 1,3,4-oxadiazolo[3,2-d]thiadiazines with fungicidal action

Yadav, Lal Dhar S., Tripathi, Rajani K., Dwivedi, Rajesh, Singh, Harendra

Journal:

Journal of Agricultural and Food Chemistry

Year:

1991

Language:

english

File:

PDF, 394 KB

english, 1991

48

Organocatalysis in synthesis and reactions of epoxides and aziridines

Chawla, Ruchi, Singh, Atul K., Yadav, Lal Dhar S.

Journal:

Year:

2013

Language:

english

File:

PDF, 896 KB

english, 2013

49

Ring transformation of Michael adducts of 4-benzylidene-5-oxazolones and 2-amino-1,3,4-thiadiazoles to antifungal 6,7-dihydro-5H-thiadiazolo[3,2-a]pyrimidin-5-ones

Singh, Harendra, Yadav, Lal Dhar S., Shukla, Kripa N., Dwivedi, Rajesh

Journal:

Journal of Agricultural and Food Chemistry

Year:

1990

Language:

english

File:

PDF, 390 KB

english, 1990

50

Synthesis of substituted 5-hydrothiazolo[4,3-b]-1,3,4-oxa(thia)diazoles and 5-hydrothiazolo[3,4-b]-1,2,4-triazoles as potential antifungal agents

Singh, Harendra., Yadav, Lal Dhar S., Shukla, Satyendra N., Dwivedi, Rajesh.

Journal:

Journal of Agricultural and Food Chemistry

Year:

1992

Language:

english

File:

PDF, 457 KB

english, 1992

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