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1

Stereoselective Synthesis of 1,2-Annulated Sugars Having Substituted Tetrahydropyran/(-furan) Scaffolds Using Prins Reaction

Chennaiah, Ande, Dubbu, Sateesh, Parasuraman, Kadigachalam, Vankar, Yashwant D

Journal:

European Journal of Organic Chemistry

Year:

2018

Language:

english

File:

PDF, 1.39 MB

english, 2018

2

Preparation of 3-trifluoromethyl-2-cycloalkenones by the oxidative rearrangement of trifluoromethylated tertiary allylic alcohols with pyridinium chlorochromate

G.K.Surya Prakash, Emily C. Tongco, Thomas Mathew, Yashwant D. Vankar, George A. Olah

Journal:

Journal of Fluorine Chemistry

Year:

2000

Language:

english

File:

PDF, 129 KB

english, 2000

3

Synthetic methods and reactions. 63. Pyridinium poly(hydrogen fluoride) (30% pyridine-70% hydrogen fluoride): a convenient reagent for organic fluorination reactions

Olah, George A., Welch, John T., Vankar, Yashwant D., Nojima, Mosatomo, Kerekes, Istvan, Olah, Judith A.

Journal:

Journal of Organic Chemistry

Year:

1979

Language:

english

File:

PDF, 1.31 MB

english, 1979

4

Synthesis of 2-Nitroglycals from Glycals Using the Tetrabutylammonium Nitrate–Trifluoroacetic Anhydride–Triethylamine Reagent System and Base-Catalyzed Ferrier Rearrangement of Acetylated 2-Nitroglycals

Dharuman, Suresh, Gupta, Preeti, Kancharla, Pavan K., Vankar, Yashwant D.

Journal:

Journal of Organic Chemistry

Year:

2013

Language:

english

File:

PDF, 770 KB

english, 2013

5

Bicyclic Hybrid Sugars as Glycosidase Inhibitors: Synthesis and Comparative Study of Inhibitory Activities of Fused Oxa-Oxa, Oxa-Aza, and Oxa-Carbasugar Hybrid Molecules

Ansari, Alafia A., Rajasekaran, Parasuraman, Khan, M. Musawwer, Vankar, Yashwant D.

Journal:

Journal of Organic Chemistry

Year:

2014

Language:

english

File:

PDF, 808 KB

english, 2014

6

Gold(III) Chloride and Phenylacetylene: A Catalyst System for the Ferrier Rearrangement, and O -Glycosylation of 1- O -Acetyl Sugars as Glycosyl Donors

Roy, Rashmi, Rajasekaran, Parasuraman, Mallick, Asadulla, Vankar, Yashwant D.

Journal:

European Journal of Organic Chemistry

Year:

2014

Language:

english

File:

PDF, 369 KB

english, 2014

7

A Convenient Synthesis of Vinyl Epoxides from Glycidic Esters via α-Hydroxy- β ,γ-unsaturated Esters

Bhattacharya, Indrani, Shah, Kavita, Vankar, Padma S., Vankar, Yashwant D.

Journal:

Synthetic Communications

Year:

1993

Language:

english

File:

PDF, 292 KB

english, 1993

8

Synthetic Methods and Reactions; 52 1 . Preparation of Nitriles from Aldoximes via Dehydration with Trimethylamine/Sulfur Dioxide Complex

OLAH, George A., VANKAR, Yashwant D.

Journal:

Year:

1978

File:

PDF, 100 KB

1978

9

Au III -Halide/Phenylacetylene-Catalysed Glycosylations Using 1- O -Acetylfuranoses and Pyranose 1,2-Orthoesters as Glycosyl Donors

Mallick, Asadulla, Mallikharjunarao, Yakkala, Rajasekaran, Parasuraman, Roy, Rashmi, Vankar, Yashwant D.

Journal:

European Journal of Organic Chemistry

Year:

2016

Language:

english

File:

PDF, 1.88 MB

english, 2016

10

A Stereoselective Synthesis of an Imino Glycal: Application in the Synthesis of (-)-1- epi -Adenophorine and a Homoimindosugar

Chennaiah, Ande, Dahiya, Amit, Dubbu, Sateesh, Vankar, Yashwant D.

Journal:

European Journal of Organic Chemistry

Year:

2019

Language:

english

File:

PDF, 195 KB

english, 2019

11

An Easy Route to 2-Amino-β-C-Glycosides by Conjugate Addition to 2-Nitroglycals

Kandasamy Pachamuthu, Anuradha Gupta, Jagattaran Das, Richard R. Schmidt, Yashwant D. Vankar

Journal:

European Journal of Organic Chemistry

Year:

2002

Language:

english

File:

PDF, 287 KB

english, 2002

12

Ameisensäureanhydrid

Prof. Dr. George A. Olah, Dr. Yashwant D. Vankar, Massoud Arvanaghi, Prof. Dr. Jean Sommer

Journal:

Angewandte Chemie

Year:

1979

File:

PDF, 137 KB

1979

13

Synthese, NMR-Spektroskopie und eine ab-initio/IGLO/GIAO-MP2-Studie der protonierten Fluorameisensäure und des Fluorcarbonyl-Kations

Prof. Dr. George A. Olah, Arwed Burrichter, Dr. Thomas Mathew, Prof. Dr. Yashwant D. Vankar, Prof. Dr. Golam Rasul, Prof. Dr. G. K. Surya Prakash

Journal:

Angewandte Chemie

Year:

1997

File:

PDF, 475 KB

1997

14

The Synthesis of Hybrids of D-Galactose with 1-Deoxynojirimycin Analogues as Glycosidase Inhibitors

B. Gopal Reddy, Yashwant D. Vankar

Journal:

Angewandte Chemie

Year:

2005

Language:

english

File:

PDF, 126 KB

english, 2005

15

Formic Anhydride

Prof. Dr. George A. Olah, Dr. Yashwant D. Vankar, Massoud Arvanaghi, Prof. Jean Sommer

Journal:

Angewandte Chemie International Edition

Year:

1979

Language:

english

File:

PDF, 134 KB

english, 1979

16

Preparation, NMR, and Ab Initio/IGLO/GIAO-MP2 Study of the Elusive Protonated Fluroformic Acid and Fluorocarbonyl Cation

Prof. Dr. George A. Olah, Dr. Arwed Burrichter, Dr. Thomas Methew, Prof. Dr. Yashwant D. Vankar, Prof. Dr. Golam Rasul, Prof. Dr. G. K. Surya Prakash

Journal:

Angewandte Chemie International Edition

Year:

1997

Language:

english

File:

PDF, 351 KB

english, 1997

17

The Synthesis of Hybrids of D-Galactose with 1-Deoxynojirimycin Analogues as Glycosidase Inhibitors

B. Gopal Reddy, Yashwant D. Vankar

Journal:

Angewandte Chemie International Edition

Year:

2005

Language:

english

File:

PDF, 126 KB

english, 2005

18

ChemInform Abstract: General Synthetic Methods. Part 12. Zeolite (H-ZSM 5) Catalyzed Regio- and Stereoselective Reduction of 2,3-Epoxy Alcohols to 1,2-Diols and Vinylic Epoxides to Homoallylic Alcohols with Sodium Cyanoborohydride.

Anuradha Gupta, Yashwant D. Vankar

Journal:

Year:

1999

File:

PDF, 37 KB

1999

19

ChemInform Abstract: Studies in Asymmetric Synthesis. Part 4. Studies in Lewis Acid and LiClO4 (or Nafion-H) Catalyzed Ionic Diels—Alder Reactions of Chiral and Achiral Olefinic Acetals Respectively.

R. Kumareswaran, Padma S. Vankar, M. Venkat Ram Reddy, Sangeeta V. Pitre, Raja Roy, Yashwant D. Vankar

Journal:

Year:

1999

Language:

english

File:

PDF, 38 KB

english, 1999

20

ChemInform Abstract: Synthetic Methods and Reactions. Part 199. Nafion-H Catalyzed Isomerization of Glycidic to α-Hydroxy-β,γ-Unsaturated Esters: Application in the Synthesis of a Trifluoromethylated Vinylic Epoxide.

Mohammed Hachoumy, Thomas Mathew, Emily C. Tongco, Yashwant D. Vankar, G. K. Surya Prakash, George A. Olah

Journal:

Year:

1999

File:

PDF, 35 KB

1999

21

ChemInform Abstract: Chemistry of Nitro Compounds. Part 9. Trimethylsilylnitrate—Chromium Trioxide and Trimethylsilylnitrate—DMSO: Novel Reagent Systems for One Step Conversion of Olefins into α-Nitro Ketones and Cyclic Ethers into Lactones.

Shatrughan P. Shahi, Anuradha Gupta, Sangeeta V. Pitre, M. Venkat Ram Reddy, R. Kumareswaran, Yashwant D. Vankar

Journal:

Year:

1999

Language:

english

File:

PDF, 37 KB

english, 1999

22

ChemInform Abstract: Ionic Diels—Alder Reaction: Recent Developments

Rashmi Sanghi, Padma S. Vankar, Yashwant D. Vankar

Journal:

Year:

1999

File:

PDF, 24 KB

1999

23

ChemInform Abstract: Chemistry of Nitro Compounds. Part 10. Nef Reaction of Benzylic and Secondary Nitro Compounds Using Bis(trimethylsilyl)peroxide.

Shatrughan P. Shahi, Yashwant D. Vankar

Journal:

Year:

2000

File:

PDF, 28 KB

2000

24

ChemInform Abstract: Considered Synthetic Methods and Reactions. Part 204. Preparation of 3-Trifluoromethyl-2-cycloalkenones by the Oxidative Rearrangement of Trifluoromethylated Tertiary Allylic Alcohols with Pyridinium Chlorochromate.

G. K. Surya Prakash, Emily C. Tongco, Thomas Mathew, Yashwant D. Vankar, George A. Olah

Journal:

Year:

2000

File:

PDF, 30 KB

2000

25

ChemInform Abstract: Chemistry of Glycosphingolipids — Carbohydrate Molecules of Biological Significance

Yashwant D. Vankar, Richard R. Schmidt

Journal:

Year:

2000

File:

PDF, 25 KB

2000

26

ChemInform Abstract: Transformation in Carbohydrate Chemistry. Part 1. Synthesis of C-2 Methylene O- and C-Glycosides and Sugar Derived α-Methylene-δ-valerolactones from C-2-Acetoxymethyl Glycals.

Anuradha Gupta, Yashwant D. Vankar

Journal:

Year:

2001

File:

PDF, 41 KB

2001

27

ChemInform Abstract: Ceric Ammonium Nitrate Catalyzed Tetrahydropyranylation of Alcohols and Synthesis of 2-Deoxy-O-glycosides.

Kandasamy Pachamuthu, Yashwant D. Vankar

Journal:

Year:

2002

File:

PDF, 32 KB

2002

28

ChemInform Abstract: An Easy Route to 2-Amino-β-C-glycosides by Conjugate Addition to 2-Nitroglycals.

Kandasamy Pachamuthu, Anuradha Gupta, Jagattaran Das, Richard R. Schmidt, Yashwant D. Vankar

Journal:

Year:

2002

File:

PDF, 34 KB

2002

29

Transformations in Carbohydrate Chemistry. Part 5. An Efficient One Step Dihydroxylation of 1,2-Glycals with Oxone in Acetone.

Shikha Rani, Yashwant D. Vankar

Journal:

Year:

2003

File:

PDF, 146 KB

2003

30

Transformations in Carbohydrate Chemistry. Part 7. LaCl3×7H2O/NaI/Benzyl Alcohol: A Novel Reagent System for Regioselective Hydration of Glycals: Application in the Synthesis of 1,6-Dideoxynojirimycin.

Shikha Rani, Aditi Agarwal, Yashwant D. Vankar

Journal:

Year:

2003

File:

PDF, 116 KB

2003

31

Selective Deprotection of tert-Butyldimethylsilyl Ethers Using Nafion-H®/Sodium Iodide (or Bromodimethylsulfonium Bromide) in Methanol.

Shikha Rani, J. Lokesh Babu, Yashwant D. Vankar

Journal:

Year:

2004

File:

PDF, 129 KB

2004

32

Chemistry of Nitro Compounds. Part 11. NaNO2—Ceric Ammonium Nitrate Mediated Conversion of Acrylic Esters and Baylis—Hillman Derived Acrylic Esters into Corresponding β-Nitro Acrylic Esters.

K. Jayakanthan, K. P. Madhusudanan, Yashwant D. Vankar

Journal:

Year:

2004

File:

PDF, 208 KB

2004

33

Trimethylsilylnitrate—Trimethylsilyl Azide: A Novel Reagent System for the Synthesis of 2-Deoxyglycosyl Azides from Glycals. Application in the Synthesis of 2-Deoxy-β-N-glycopeptides.

B. Gopal Reddy, K. P. Madhusudanan, Yashwant D. Vankar

Journal:

Year:

2004

File:

PDF, 183 KB

2004

34

Protic Acid (HClO4 Supported on Silica Gel)-Mediated Synthesis of 2,3-Unsaturated-O-glucosides and a Chiral Furan Diol from 2,3-Glycals.

Aditi Agarwal, Shikha Rani, Yashwant D. Vankar

Journal:

Year:

2005

File:

PDF, 34 KB

2005

35

ChemInform Abstract: Regio- and Stereocontrolled Selective Debenzylation and Substitution Reactions of C-2 Formyl Glycals. Application in the Synthesis of Constrained β-Sugar Amino Acids.

Girish K. Rawal, Shikha Rani, Nitee Kumari, Yashwant D. Vankar

Journal:

Year:

2010

Language:

english

File:

PDF, 50 KB

english, 2010

36

ChemInform Abstract: Molecular Iodine Promoted N- and C-Glycosylation of 1-C-Alkyl (or Phenyl)-glycopyranoses.

A. P. John Pal, Asadulla Mallick, Y. Suman Reddy, Yashwant D. Vankar

Journal:

Year:

2011

File:

PDF, 28 KB

2011

37

Synthesis of Pyrrolidine-Based Imino Sugars as Glycosidase Inhibitors

Venkata Ramana Doddi, Yashwant D. Vankar

Journal:

European Journal of Organic Chemistry

Year:

2007

Language:

english

File:

PDF, 206 KB

english, 2007

38

Total Synthesis of L-(+)-Swainsonine and Other Indolizidine Azasugars from D-Glucose

Mohammad Abrar Alam, Amit Kumar, Yashwant D. Vankar

Journal:

European Journal of Organic Chemistry

Year:

2008

Language:

english

File:

PDF, 306 KB

english, 2008

39

Synthesis of Hybrids of D-Glucose and D-Galactose with Pyrrolidine-Based Iminosugars as Glycosidase Inhibitors

Venkata Ramana Doddi, Hari Prasad Kokatla, A. P. John Pal, Ranjan K. Basak, Yashwant D. Vankar

Journal:

European Journal of Organic Chemistry

Year:

2008

Language:

english

File:

PDF, 250 KB

english, 2008

40

Efficient and Stereodivergent Syntheses of D- and L-Fagomines and Their Analogues

Nitee Kumari, B. Gopal Reddy, Yashwant D. Vankar

Journal:

European Journal of Organic Chemistry

Year:

2009

Language:

english

File:

PDF, 286 KB

english, 2009

41

Facile Aza-Claisen Rearrangement of Glycals: Application in the Synthesis of 1-Deoxy-L-iminosugars

Preeti Gupta, Yashwant D. Vankar

Journal:

European Journal of Organic Chemistry

Year:

2009

Language:

english

File:

PDF, 261 KB

english, 2009

42

Synthesis of Fused Oxa-Aza Spiro Sugars from D-Glucose-Derived δ-Lactone as Glycosidase Inhibitors

A. P. John Pal, Preeti Gupta, Y. Suman Reddy, Yashwant D. Vankar

Journal:

European Journal of Organic Chemistry

Year:

2010

Language:

english

File:

PDF, 662 KB

english, 2010

43

Synthesis of Aminocyclitols and Trihydroxylated Indolizidinone from a D-Mannitol-Derived Common Building Block

Preeti Gupta, A. P. John Pal, Y. Suman Reddy, Yashwant D. Vankar

Journal:

European Journal of Organic Chemistry

Year:

2011

Language:

english

File:

PDF, 710 KB

english, 2011

44

Palladium catalysed conversion of vinyl bromo allylic alcohols into vinylic carbonyl compounds and oxidation of secondary alcohols to ketones

Sangeeta V. Pitre, Padma S. Vankar, Yashwant D. Vankar

Journal:

Year:

1996

Language:

english

File:

PDF, 350 KB

english, 1996

45

A novel one pot nitroacetamidation of olefins using ceric ammonium nitrate-sodium nitrite-acetonitrile reagent system

M. Venkat Ram Reddy, Bharat Mehrotra, Yashwant D. Vankar

Journal:

Tetrahedron Letters

Year:

1995

Language:

english

File:

PDF, 161 KB

english, 1995

46

A novel one pot synthesis of α-nitroketones from olefins using trimethylsilylnitrate-chromium trioxide reagent system

M. Venkat Ram Reddy, R. Kumareswaran, Yashwant D. Vankar

Journal:

Tetrahedron Letters

Year:

1995

Language:

english

File:

PDF, 151 KB

english, 1995

47

A one step conversion of olefins into α-Azidoketones using azidotrimethylsilane-chromium trioxide reagent system

M. Venkat Ram Reddy, R. Kumareswaran, Yashwant D. Vankar

Journal:

Tetrahedron Letters

Year:

1995

Language:

english

File:

PDF, 291 KB

english, 1995

48

Asymmetric synthesis of chiral vinylic epoxides and α-hydroxy-β,γ-unsaturated esters via (−)-menthol based auxiliary and enzymatic resolution respectively

Padma S. Vankar, Indrani Bhattacharya, Yashwant D. Vankar

Journal:

Tetrahedron: Asymmetry

Year:

1996

Language:

english

File:

PDF, 559 KB

english, 1996

49

Selective deprotection of terminal isopropylidene acetals and trityl ethers using HClO4 supported on silica gel

Aditi Agarwal, Yashwant D. Vankar

Journal:

Carbohydrate Research

Year:

2005

Language:

english

File:

PDF, 172 KB

english, 2005

50

Glycosyl trichloroacetylcarbamate: a new glycosyl donor for O-glycosylation

K. Jayakanthan, Yashwant D. Vankar

Journal:

Carbohydrate Research

Year:

2005

Language:

english

File:

PDF, 131 KB

english, 2005