Nagendra Nath Yadav

North Eastern Regional Institute of Science and Technology

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J. S. Yadav

Indrashil University

Basi V. Subba Reddy

Indian Institute of Chemical Technology

Hyun‐Joon Ha

Hankuk University of Foreign Studies

Sonam Tashi Khom

North Eastern Regional Institute of Science and Technology

Archana Pareek

North Eastern Regional Institute of Science and Technology

A. Murugan

North Eastern Regional Institute of Science and Technology

Pranjit Saikia

North Eastern Regional Institute of Science and Technology

Manoj K. Gupta

Central University of Haryana

Manoj Gupta

National University of Singapore

Nikhil Srivastava

Hankuk University of Foreign Studies

Cooperative Institutions

Shahid Beheshti University of Medical Sciences

Indian Institute of Chemical Technology

Shiraz University of Medical Sciences

North Eastern Regional Institute of Science and Technology

Academy of Scientific and Innovative Research

Shiraz University

University of Hyderabad

Kalasalingam Academy of Research and Education

Tehran University of Medical Sciences

Shahid Beheshti University

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Preparation of Stable Bicyclic Aziridinium Ions and Their Ring-Opening for the Synthesis of Azaheterocycles

Journal of Visualized Experiments (2018)

Nagendra Nath Yadav Hyun‐Joon Ha

10.3791/57572-v

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Citations (1)

Atom-Economical and Metal-Free Synthesis of Multisubstituted Furans from Intramolecular Aziridine Ring Opening

ACS Omega (2017)

Nagendra Nath Yadav Hyeonsu Jeong Hyun‐Joon Ha

Multisubstituted furans were prepared from dialkyl 2-(aziridin-2-ylmethylene)malonate and/or 1,3-dione through aziridine ring opening by the internal carbonyl oxygen with the assistance of BF3·OEt2, followed by aromatization. This synthetic method is free from any metal and is atom-economical with all of the atoms in the starting material retained in the final product.

Aziridine

Aromatization

Malonate

10.1021/acsomega.7b01542

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Citations (12)

1,4-Dipolar Cycloaddition Reactions in Ionic Liquids: A Facile Synthesis of 9aH,15H-[1]Benzopyrano[3′,2′: 3,4]pyrido[2,1-a]isoquinolines (=9aH,15H-Benzo[a][1]benzopyrano[2,3-h]quinolizines)

Helvetica Chimica Acta (2012)

Basi V. Subba Reddy Nagendra Nath Yadav Nikhil Srivastava J. S. Yadav Balasubramanian Sridhar

Abstract Ionic liquids were found to be a suitable reaction medium for 1,4‐dipolar cycloaddition reactions of an isoquinoline, an activated alkyne, and a 4‐oxo‐4 H ‐1‐benzopyran‐3‐carboxaldehyde at room temperature to afford [1]benzopyrano‐pyrido‐isoquinoline (=9a H ,15 H ‐benzo[ a ][1]benzopyrano[2,3‐ h ]quinolizine) derivatives selectively in good yields. The ionic liquid can be recovered and recycled in further runs without loss of activity.

Isoquinoline

10.1002/hlca.201100250

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Structure and Function of Biological Biomolecules: Carbohydrates, Amino Acids, Proteins, Nucleic Acids, Lipids and Biomembranes

BENTHAM SCIENCE PUBLISHERS eBooks (2021)

Nagendra Nath Yadav Saroj Yadav Archana Pareek

This chapter deals with the introduction, definition and classification of various biological molecules like carbohydrates, lipids and bio-membranes, amino acids, proteins and nucleic acids. The synthesis of carbohydrates, structure and function of monosaccharides, disaccharides and polysaccharides, absolute and relative configuration of sugar, reducing and non-reducing sugar, Fischer projection formula and Haworth projection formula are also briefly described. A brief knowledge about the type of fatty acids, acid value, soap value, various types of lipids, including phospholipids and sphingolipids, is also included. This unit also discusses the properties of various types of amino acids, proteins and nucleic acids, including structures of nucleoside, nucleotides, DNA and RNA.

Biomolecule

Monosaccharide

10.2174/9781681088471121010008

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ChemInform Abstract: Aluminum(III)‐Promoted Prins Cyclization of 2‐Allylphenols: An Expedient Synthesis of Benzoxepins.

ChemInform (2008)

J. S. Yadav Basi V. Subba Reddy Nagendra Nath Yadav G. Satheesh

Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.

Prins reaction

10.1002/chin.200903171

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ChemInform Abstract: Three-Component Coupling Reactions of Isoquinolines, Dimethyl Acetylenedicarboxylate and Indoles: A Facile Synthesis of 3-Indolyl-1,2-dihydro-2-isoquinolinyl-2-butenedioate.

ChemInform (2008)

J. S. Yadav B. V. Subba Reddy Nagendra Nath Yadav Manoj Gupta

Dimethyl acetylenedicarboxylate

Component (thermodynamics)

Acetylenedicarboxylate

10.1002/chin.200833125

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Divergent Enantioselective Total Synthesis of Siphonarienal, Siphonarienone, and Pectinatone

Helvetica Chimica Acta (2013)

J. S. Yadav D. Narasimha Chary Nagendra Nath Yadav Sandip Sengupta Basi V. Subba Reddy

Abstract A divergent synthesis of siphonarienal, siphonarienone, and pectinatone has been achieved from a common precursor 4 , which was synthesized by using an enzymatic desymmetrization approach. The major key steps involved were Grignard reaction, Wittig reaction, Evans ' asymmetric alkylation, and base‐catalyzed cyclization.

Desymmetrization

Wittig reaction

Grignard reaction

10.1002/hlca.201300035

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Citations (12)

A short and efficient Formal Synthesis of R-Pipecolic Acid from the Ring expansion of Chiral Aziridine

Research Square (Research Square) (2023)

Archana Pareek Sonam Tashi Khom Pranjit Saikia Nagendra Nath Yadav

Abstract Ring expansion of 4-( R )-1-( R )-1-phenylethyl)aziridin-2-yl)butyl 4-tosylate obtained from tosylation of 4-( R )-1-( R )-1-phenylethyl)aziridin-2-yl)butan-1-ol via formation of 1-azabicyclo[4.1.0]heptane tosylate gives substituted piperidine. The ring openings of azabicycloheptane tosylate with acetate nucleophiles proceeded in highly regio- and stereoselective manner with release of the ring-strain of the three-member aziridine ring through the breakage of either C-N bond. This ring expansion streategy of aziridine provides a short route for asymmetric synthesis of biologically active natural alkaloid such as R -Pipecolic acid.

Aziridine

Pipecolic acid

Piperidine

10.21203/rs.3.rs-3198182/v1

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Hormones

BENTHAM SCIENCE PUBLISHERS eBooks (2021)

Nagendra Nath Yadav Archana Pareek

This chapter includes an introduction, classification, and type of hormones, as well as their biological functions. This chapter also gives a brief discussion about the structure, properties, and regulatory action of hormones. Various plant hormones and their functions have been discussed in this chapter.

10.2174/9781681088471121010011

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Synthesis of allylamines from Baylis–Hillman acetates using DBU under solvent free condition

Monatshefte für Chemie - Chemical Monthly (2023)

Sonam Tashi Khom Pranjit Saikia Ijaz Ullah Muzaddadi A. Murugan Nagendra Nath Yadav

SN2 reaction

Substitution reaction

10.1007/s00706-023-03095-y

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