Biswanath Das

Indian Institute of Chemical Technology

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Maddeboina Krishnaiah

Levine Cancer Institute

Katta Venkateswarlu

Andhra University

Joydeep Banerjee

Indian Institute of Technology Kharagpur

Harish Holla

Central University of Karnataka

Kongara Ravinder Reddy

Simon Fraser University

Gurram Mahender

Albany Molecular Research (United States)

N. Ravindranath

National Academies of Sciences, Engineering, and Medicine

Nikhil Chowdhury

Indian Institute of Chemical Technology

Kongara Damodar

Gangneung–Wonju National University

Anjoy Majhi

Presidency University

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Indian Institute of Chemical Technology

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University of Hyderabad

Academy of Scientific and Innovative Research

Osmania University

Andhra University

Sri Venkateswara University

Council of Scientific and Industrial Research

Virginia Tech

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Central Drug Research Institute

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PMA/SiO₂ – An efficient recyclable heterogeneous catalyst for the synthesis of homoallyl alcohols and amines under solvent-free conditions

Canadian Journal of Chemistry (2008)

Biswanath Das Rathod Aravind Kumar Ponnaboina Thirupathi Kanaparthy Suneel P. Sunitha

Aldehydes and imines can efficiently undergo nucleophilic addition reaction with allyltributylstannane in the presence of phosphomolybdic acid supported on silica (PMA/SiO 2 ) under solvent free-conditions to form the corresponding homoallyl alcohols and amines respectively at room temperature in excellent yields. The catalyst can be easily recovered and re-used.Key words: homoallyl alcohol, homoallyl amine, phosphomolybdic acid, heterogeneous catalyst, allyltributylstannane, solvent-free conditions.

Phosphomolybdic acid

10.1139/v08-060

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Citations (8)

Sulfonic Acid Functionalized Silica: An Efficient Heterogeneous Catalyst for a Three-Component Synthesis of 1,4-Dihydropyridines under Solvent-Free Conditions

Chemical and Pharmaceutical Bulletin (2008)

Biswanath Das Kanaparthy Suneel Katta Venkateswarlu Bommena Ravikanth

Sulfonic acid functionalized silica catalyzed the three-component reaction of aromatic amines, α,β-unsaturated aldehydes and β-keto esters forming the corresponding 1,4-dihydropyridines in short reaction times and in high yields.

Sulfonic acid

Component (thermodynamics)

Solid acid

10.1248/cpb.56.366

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Citations (27)

Synthesis of Novel Spiro‐2‐isoxazolines Derived from Parthenin.

ChemInform (2006)

Biswanath Das C. Ramesh N. Ravindranath Gurram Mahender Harish Holla

Abstract For Abstract see ChemInform Abstract in Full Text.

10.1002/chin.200605188

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Citations (1)

ChemInform Abstract: Novel Synthetic Methodologies. Part 221. The First Synthesis of β‐Amino Phosphonates Using Cyclic Sulfamidates.

ChemInform (2011)

Biswanath Das Cheruku Ravindra Reddy Siddavatam Nagendra Lingaiah Maram

10.1002/chin.201143171

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Citations (0)

A simple, mild and efficient procedure for selective cleavage of prenyl esters using silica-supported sodium hydrogen sulphate as a heterogenous catalyst

Tetrahedron Letters (2003)

C. Ramesh Gurram Mahender N. Ravindranath Biswanath Das

Hydrogen Sulfate

Cleavage (geology)

10.1016/s0040-4039(02)02858-7

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Citations (43)

A Simple and Efficient Access to α-Amino Phosphonates from N-Benzyloxycarbonylamino Sulfones Using Indium(III) Chloride†Studies on Novel Synthetic Methodologies. 188.

The Journal of Organic Chemistry (2009)

Biswanath Das Kongara Damodar Nisith Bhunia

ADVERTISEMENT RETURN TO ISSUEPREVNoteNEXTA Simple and Efficient Access to α-Amino Phosphonates from N-Benzyloxycarbonylamino Sulfones Using Indium(III) Chloride††Studies on Novel Synthetic Methodologies. 188.Biswanath Das, Kongara Damodar, and Nisith BhuniaView Author Information Organic Chemistry Division-I, Indian Institute of Chemical Technology, Hyderabad 500 007, India[email protected]Cite this: J. Org. Chem. 2009, 74, 15, 5607–5609Publication Date (Web):July 2, 2009Publication History Received16 March 2009Published online2 July 2009Published inissue 7 August 2009https://pubs.acs.org/doi/10.1021/jo900558dhttps://doi.org/10.1021/jo900558dbrief-reportACS PublicationsCopyright © 2009 American Chemical SocietyRequest reuse permissionsArticle Views1479Altmetric-Citations39LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access optionsGet e-AlertscloseSupporting Info (1)»Supporting Information Supporting Information SUBJECTS:Aldehydes,Aromatic compounds,Chemical reactions,Organophosphorus compounds,Sulfones Get e-Alerts

10.1021/jo900558d

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Citations (40)

ChemInform Abstract: Novel Synthetic Methodologies and Their Applications. Part 108. A Mild and Efficient Stereoselective Synthesis of (Z)‐ and (E)‐Allyl Sulfides and Potent Antifungal Agent, (Z)‐3‐(4‐Methoxybenzylidene)thiochroman‐4‐one from Morita—Baylis—Hillman Acetates.

ChemInform (2007)

Biswanath Das Nikhil Chowdhury Kongara Damodar Joydeep Banerjee

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.

10.1002/chin.200802082

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Clerodendrone, a Novel Hydroquinone Diterpenoid from Clerodendrum Indicum

Journal of Chemical Research (2003)

N. Ravindranath C. Ramesh K. Hara Kishore U.SN. Murty Biswanath Das

Chemical investigation of Clerodendrum indicum has resulted in the isolation of clerodendrone, a new member of hydroquinone diterpenoids (which are rare in the investigated family, Verbenaceae). The compound was characterised from its spectral (1D and 2D NMR) data and chemical reactions and was found to contain an uncommon structural pattern with beta-methyl dihydrofuran moiety.

Verbenaceae

Hydroquinone

Moiety

Chemical structure

10.3184/030823403103174452

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Citations (13)

ChemInform Abstract: Studies on Novel Synthetic Methodologies. Part 219. Allylation of N‐Benzoylhydrazones (= N′‐Alkylidene‐Substituted Benzohydrazides) by Treatment with Allyl Bromide in the Presence of Zinc in Aqueous Ammonium Chloride Solution.

ChemInform (2011)

Biswanath Das Digambar Balaji Shinde Boddu Shashi Kanth Jayprakash Narayan Kumar

10.1002/chin.201151052

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