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1

An efficient and clean synthesis of bis(indolyl)methanes in a protic solvent at room temperature

Mohit L. Deb, Pulak J. Bhuyan

Journal:

Tetrahedron Letters

Year:

2006

Language:

english

File:

PDF, 87 KB

english, 2006

2

Synthesis of 5-alkylated barbituric acids and 3-alkylated indoles via microwave-assisted three-component reactions in solvent-free conditions using Hantzsch 1,4-dihydropyridines as reducing agents

Baruah, Biswajita, Naidu, P. Seetham, Borah, Pallabi, Bhuyan, Pulak J.

Journal:

Molecular Diversity

Year:

2012

Language:

english

File:

PDF, 315 KB

english, 2012

3

An efficient one-pot three-component reaction for the synthesis of novel functionalized pyrano[3,2-c]coumarins catalyzed by Na2CO3 in aqueous medium

Borah, Pallabi, Naidu, P. Seetham, Majumder, Swarup, Bhuyan, Pulak J.

Journal:

Year:

2013

Language:

english

File:

PDF, 538 KB

english, 2013

4

A mild process of carbon–carbon bond formation in aqueous medium: synthesis of bis(pyrrolo[2,3-d]pyrimidinyl)methanes, a novel class of compounds

Sharma, Meenakshi, Bhuyan, Pulak J.

Journal:

Year:

2014

Language:

english

File:

PDF, 712 KB

english, 2014

5

ChemInform Abstract: Studies on Uracils: Synthesis of Novel Uracil Analogues via 1,5- and 1,6-Intramolecular Cycloaddition Reactions.

Pulak J. Bhuyan, Kushal C. Lekhok, Jagir S. Sandhu

Journal:

Year:

1999

File:

PDF, 28 KB

1999

6

ChemInform Abstract: Studies on Uracils: A Simple and Efficient Method for the Synthesis of Novel Pyrimido[4,5-c]pyridazines

Pulak J. Bhuyan, Kushal C. Lekhok, Jagir S. Sandhu

Journal:

Year:

1999

File:

PDF, 27 KB

1999

7

ChemInform Abstract: Studies on Uracils: Synthesis of Tetrazolo[4′,5′:1,6]pyrido[2,3-d]pyrimidines by the Action of Cyano Stabilized Carbanions on 6-Azido-5-formyluracils.

Pulak J. Bhuyan, Kurshal C. Lekhok, Jagir S. Sandhu

Journal:

Year:

1999

File:

PDF, 28 KB

1999

8

ChemInform Abstract: Studies on Uracils: An Efficient Method for the Synthesis of Novel 1-Allyl-6-(1′,2′,3′-triazolyl) Analogues of HEPT.

Pulak J. Bhuyan, Harsha N. Borah, Jagir S. Sandhu

Journal:

Year:

2000

File:

PDF, 34 KB

2000

9

A Novel Three-Component One-Pot Synthesis of Pyrano[2,3-d]pyrimidines and Pyrido[2,3-d]pyrimidines Using Microwave Heating in the Solid State.

Ipsita Devi, B. S. D. Kumar, Pulak J. Bhuyan

Journal:

Year:

2004

File:

PDF, 111 KB

2004

10

A Novel Microwave-Assisted One-Pot Synthesis of Pyrano[2,3-d]pyrimidines and Pyrido[2,3-d]pyrimidines via a Three-Component Reaction in Solvent-Free Condition.

Ipsita Devi, Pulak J. Bhuyan

Journal:

Year:

2004

File:

PDF, 119 KB

2004

11

Studies on Uracils: A Facile One-Pot Synthesis of Oxazino[4,5-d]-, pyrano[2,3-d]-, pyrido[2,3-d]- and pyrimido[4,5-d]pyrimidines Using Microwave Irradiation in the Solid State.

Ipsita Devi, Harsha N. Borah, Pulak J. Bhuyan

Journal:

Year:

2004

File:

PDF, 105 KB

2004

12

Stereoselective Intramolecular Hetero Diels—Alder Reactions of 1-Oxa-1,3-butadienes: A Novel Approach for the Synthesis of Complex Annulated Uracils.

Ipsita Devi, Pulak J. Bhuyan

Journal:

Year:

2005

File:

PDF, 16 KB

2005

13

Sodium Bromide Catalyzed One-Pot Synthesis of Tetrahydrobenzo[b]pyrans via a Three-Component Cyclocondensation under Microwave Irradiation and Solvent-Free Conditions.

Ipsita Devi, Pulak J. Bhuyan

Journal:

Year:

2005

File:

PDF, 16 KB

2005

14

An Expedient Method for the Synthesis of 6-Substituted Uracils under Microwave Irradiation in a Solvent-Free Medium.

Ipsita Devi, Pulak J. Bhuyan

Journal:

Year:

2005

File:

PDF, 19 KB

2005

15

Uncatalyzed Knoevenagel Condensation in Aqueous Medium at Room Temperature.

Mohit L. Deb, Pulak J. Bhuyan

Journal:

Year:

2005

File:

PDF, 31 KB

2005

16

ChemInform Abstract: Water-Promoted Synthesis of 3,3′-Di(indolyl)oxindoles.

Mohit L. Deb, Pulak J. Bhuyan

Journal:

Year:

2009

File:

PDF, 23 KB

2009

17

ChemInform Abstract: A Mild and Efficient Method for the Deformylation of 5-Formyl Uracils and Synthesis of 4,4′-Methylidenebis(1-phenyl-3-methyl-5-pyrazolone).

Mohit L. Deb, Swarup Majumder, Pulak J. Bhuyan

Journal:

Year:

2009

File:

PDF, 31 KB

2009

18

ChemInform Abstract: Synthesis of Some Complex Pyrano[2,3-b]- and Pyrido[2,3-b]quinolines from Simple Acetanilides via Intramolecular Domino Hetero Diels—Alder Reactions of 1-Oxa-1,3-butadienes in Aqueous Medium.

Biswajita Baruah, Pulak J. Bhuyan

Journal:

Year:

2009

File:

PDF, 43 KB

2009

19

ChemInform Abstract: A Simple and Efficient Method for the Synthesis of Indolo[3,2-b]carbazoles.

Mohit L. Deb, Swarup Mazumder, Biswajita Baruah, Pulak J. Bhuyan

Journal:

Year:

2010

File:

PDF, 24 KB

2010

20

ChemInform Abstract: The Tertiary Amino Effect: An Efficient Method for the Synthesis of α-Carbolines.

Swarup Majumder, Pulak J. Bhuyan

Journal:

Year:

2011

File:

PDF, 40 KB

2011

21

ChemInform Abstract: An Efficient One-Pot, Three-Component Reaction: Synthesis of Complex-Anellated α-Carbolines via an Intramolecular [3 + 2]-Dipolar Cycloaddition Reaction.

Swarup Majumder, Pulak J. Bhuyan

Journal:

Year:

2011

File:

PDF, 28 KB

2011

22

“Tertiary amine effect” strategy in the synthesis of novel uracil analogues

Pulak.J. Bhuyan, Jagir S. Sandhu, Anil C. Ghosh

Journal:

Tetrahedron Letters

Year:

1996

Language:

english

File:

PDF, 88 KB

english, 1996

23

A novel three-component one-pot synthesis of pyrano[2,3-d]pyrimidines and pyrido[2,3-d]pyrimidines using microwave heating in the solid state

Ipsita Devi, B.S.D Kumar, Pulak J Bhuyan

Journal:

Tetrahedron Letters

Year:

2003

Language:

english

File:

PDF, 229 KB

english, 2003

24

Studies on uracils: a facile one-pot synthesis of oxazino[4,5-d]-, pyrano[2,3-d]-, pyrido[2,3-d]- and pyrimido[4,5-d]pyrimidines using microwave irradiation in the solid state

Ipsita Devi, Harsha N Borah, Pulak J Bhuyan

Journal:

Tetrahedron Letters

Year:

2004

Language:

english

File:

PDF, 247 KB

english, 2004

25

Stereoselective intramolecular hetero Diels–Alder reactions of 1-oxa-1,3-butadienes: a novel approach for the synthesis of complex annulated uracils

Ipsita Devi, Pulak J. Bhuyan

Journal:

Tetrahedron Letters

Year:

2004

Language:

english

File:

PDF, 240 KB

english, 2004

26

Sodium bromide catalysed one-pot synthesis of tetrahydrobenzo[b]pyrans via a three-component cyclocondensation under microwave irradiation and solvent free conditions

Ipsita Devi, Pulak J. Bhuyan

Journal:

Tetrahedron Letters

Year:

2004

Language:

english

File:

PDF, 252 KB

english, 2004

27

Stereoselective intramolecular hetero Diels–Alder reactions of 1-oxa-1,3-butadienes: synthesis of novel annelated pyrrolo[1,2-a]indoles

Harsha N. Borah, Mohit L. Deb, Romesh C. Boruah, Pulak J. Bhuyan

Journal:

Tetrahedron Letters

Year:

2005

Language:

english

File:

PDF, 97 KB

english, 2005

28

An expedient method for the synthesis of 6-substituted uracils under microwave irradiation in a solvent-free medium

Ipsita Devi, Pulak J. Bhuyan

Journal:

Tetrahedron Letters

Year:

2005

Language:

english

File:

PDF, 100 KB

english, 2005

29

Uncatalysed Knoevenagel condensation in aqueous medium at room temperature

Mohit L. Deb, Pulak J. Bhuyan

Journal:

Tetrahedron Letters

Year:

2005

Language:

english

File:

PDF, 103 KB

english, 2005

30

Synthesis of novel pyrano[2,3-b]quinolines from simple acetanilides via intramolecular 1,3-dipolar cycloaddition

Pabitra K. Kalita, Biswajita Baruah, Pulak J. Bhuyan

Journal:

Tetrahedron Letters

Year:

2006

Language:

english

File:

PDF, 120 KB

english, 2006

31

Uncatalyzed Michael addition of indoles: synthesis of some novel 3-alkylated indoles via a three-component reaction in solvent-free conditions

Mohit L. Deb, Pulak J. Bhuyan

Journal:

Tetrahedron Letters

Year:

2007

Language:

english

File:

PDF, 129 KB

english, 2007

32

Metallic bismuth and tantalum mediated C-allylation of aldimines with allyl bromide

Pulak J. Bhuyan, Dipak Prajapati, Jagir S. Sandhu

Journal:

Tetrahedron Letters

Year:

1993

Language:

english

File:

PDF, 154 KB

english, 1993

33

Synthesis of dihydro- and tetrahydroisoxazolo[3′,4′:3,4]pyrrolo[1,2-a]indoles via intramolecular cycloadditions. A novel class of mitomycin analogues

Pulak J Bhuyan, Romesh C Boruah, Jagir S Sandhu

Journal:

Tetrahedron Letters

Year:

1989

Language:

english

File:

PDF, 141 KB

english, 1989

34

Studies on uracils: A simple and efficient method for the synthesis of novel pyrimido[4,5-c]pyridazines

Pulak J. Bhuyan, Kushal C Lekhok, Jagir S Sandhu

Journal:

Tetrahedron Letters

Year:

1999

Language:

english

File:

PDF, 124 KB

english, 1999

35

Synthesis of some complex pyrano[2,3-b]- and pyrido[2,3-b]quinolines from simple acetanilides via intramolecular domino hetero Diels–Alder reactions of 1-oxa-1,3-butadienes in aqueous medium

Biswajita Baruah, Pulak J. Bhuyan

Journal:

Year:

2009

Language:

english

File:

PDF, 347 KB

english, 2009

36

Tertiary amine effect: synthesis of some novel spirosubstituted pyrido[2,3-d]pyrimidines

Biswajita Baruah, Pulak J. Bhuyan

Journal:

Tetrahedron Letters

Year:

2009

Language:

english

File:

PDF, 204 KB

english, 2009

37

ChemInform Abstract: Stereoselective Synthesis of Novel Annulated Thiopyrano Indole Derivatives from Simple Oxindole via Intramolecular 1,3-Dipolar Cycloaddition Reactions of Nitrone and Nitrile Oxide.

Swarup Majumder, Pulak J. Bhuyan

Journal:

Year:

2012

File:

PDF, 27 KB

2012

38

Intramolecular 1,3-dipolar cycloaddition reactions in the synthesis of complex annelated quinolines,α-carbolines and coumarins

Majumder, Swarup, Borah, Pallabi, Bhuyan, Pulak J.

Journal:

Molecular Diversity

Year:

2012

Language:

english

File:

PDF, 473 KB

english, 2012

39

Synthesis of some novel and complex thiopyrano indole derivatives from simple oxindole via intramolecular domino hetero Diels–Alder reactions

Swarup Majumder, Pulak J. Bhuyan

Journal:

Tetrahedron Letters

Year:

2012

Language:

english

File:

PDF, 474 KB

english, 2012

40

Synthesis of some analogues of (±)gelliusine F, (±)gelliusine E, and total synthesis of 2,2-di(6′-bromo-3′-indolyl)ethylamine

P. Seetham Naidu, Pulak J. Bhuyan

Journal:

Tetrahedron Letters

Year:

2012

Language:

english

File:

PDF, 250 KB

english, 2012

41

Stereoselective synthesis of novel annulated thiopyrano indole derivatives from simple oxindole via intramolecular 1,3-dipolar cycloaddition reactions of nitrone and nitrile oxide

Swarup Majumder, Pulak J. Bhuyan

Journal:

Tetrahedron Letters

Year:

2012

Language:

english

File:

PDF, 333 KB

english, 2012

42

Synthesis of some novel functionalized dihydropyrido[2,3-d]pyrimidines via an one-pot three-component reaction catalysed by InCl3

P. Seetham Naidu, Pallabi Borah, Pulak J. Bhuyan

Journal:

Tetrahedron Letters

Year:

2012

Language:

english

File:

PDF, 310 KB

english, 2012

43

Synthesis of some tetrazole fused pyrido[2,3-c]coumarin derivatives from a one-pot three-component reaction via intramolecular 1,3-dipolar cycloaddition reaction of azide to nitriles

Pallabi Borah, P. Seetham Naidu, Pulak J. Bhuyan

Journal:

Tetrahedron Letters

Year:

2012

Language:

english

File:

PDF, 677 KB

english, 2012

44

Synthesis of Novel Classes of Pyrido[2,3‐ d ]‐pyrimidines, Pyrano[2,3‐ d ]pyrimidines, and Pteridines

Deb, Mohit Lal, Bhuyan, Pulak J.

Journal:

Synthetic Communications

Year:

2006

Language:

english

File:

PDF, 86 KB

english, 2006

45

ChemInform Abstract: Synthesis of Some Novel Functionalized Dihydropyrido[2,3-d]pyrimidines via a One-Pot Three-Component Reaction Catalyzed by InCl 3 .

Naidu, P. Seetham, Borah, Pallabi, Bhuyan, Pulak J.

Journal:

Year:

2012

File:

PDF, 32 KB

2012

46

ChemInform Abstract: Synthesis of Some Tetrazole-Fused Pyrido[2,3-c]coumarin Derivatives from a One-Pot Three-Component Reaction via Intramolecular 1,3-Dipolar Cycloaddition Reaction of Azide to Nitriles.

Borah, Pallabi, Naidu, P. Seetham, Bhuyan, Pulak J.

Journal:

Year:

2012

File:

PDF, 32 KB

2012

47

Studies on Uracils: Synthesis of Tetrazolo[4′,5′:1,6]pyrido[2,3-d]pyrimidines by the Action of Cyano Stabilised Carbanions on 6-Azido-5-formyluracils

Bhuyan, Pulak J., Lekhok, Kushal C., Sandhu, Jagir S.

Journal:

Journal of Chemical Research

Year:

1999

Language:

english

File:

PDF, 101 KB

english, 1999

48

Water-Promoted Synthesis of 3,3′-Di(indolyl)oxindoles

Deb, Mohit L., Bhuyan, Pulak J.

Journal:

Synthetic Communications

Year:

2009

Language:

english

File:

PDF, 101 KB

english, 2009

49

Synthesis of some novel spiro substituted pyrido[2,3-c]coumarins by exploring ‘tertiary amino effect’ reaction strategy

Borah, Pallabi, Bhuyan, Pulak J.

Journal:

Tetrahedron Letters

Year:

2013

Language:

english

File:

PDF, 462 KB

english, 2013

50

An efficient and regioselective one-pot multi-component synthesis of pyrimido[4,5-d]pyrimidine derivatives in water

Majumder, Swarup, Borah, Pallabi, Bhuyan, Pulak J.

Journal:

Tetrahedron Letters

Year:

2014

Language:

english

File:

PDF, 496 KB

english, 2014

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