Ministry of Education
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Dr Valliappan R

vidwan id: 106785
Male

Professor, Department of Chemistry
Annamalai University

Orchid Icon 0000-0002-8886-2400 Google Scholar Icon 6506470388 Researcher Icon W-4731-2019 Google Scholar Icon DPt0588AAAAJ

Expertise

  • Multidisciplinary Chemistry

Publications

Total Articles 26
Books 0
Proceedings 0

Publications

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Scopus

Citations 205
h-index 7

CrossRef

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Citations 93
h-index 5
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Professional Recognition

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Bio

Synthetic Organic Chemistry, Phytochemical analysis and Envirnmental Chemistry

Personal Details

  • Male
  • Professor , Annamalai University
  • Annamalai University, Annamalai Nagar, Chidambaram
Ph.D
Annamalai University 2003
Professor Mar 2003 – Present
Annamalai University | Department of Chemistry

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Co-Authors (4)

Ganapathi Raman

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Scholarly Work

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Scholarly Publications

Sulfated titania (TiO2-SO42−) as an efficient and reusable solid acid catalyst for the multi-component synthesis of highly functionalized piperidines

Open Access
Data Paper
Chemical Data Collections. Year: 2020. Volume: 30 .
Authors: Geetha S.;Thangamani A.;Valliappan R.;Vedanayaki S.;Ganapathi A.
DOI 10.1016/j.cdc.2020.100565
9 15

TiO2-SO42−: A recyclable heterogeneous catalyst for the microwave-mediated synthesis of benzylamino coumarin derivatives in water

Open Access
Data Paper
Chemical Data Collections. Year: 2020. Volume: 30 .
Authors: Geetha S.;Thangamani A.;Valliappan R.;Vedanayaki S.;Ganapathi A.
DOI 10.1016/j.cdc.2020.100589
7 5

Efficient atom-economical solvent-free one-pot multicomponent synthesis of 2-amino-4H-benzo[b]pyrans catalyzed by solid base SiO2-OK as a reusable catalyst

Open Access
Article
Research on Chemical Intermediates. Year: 2015. Volume: 41 , Issue: 4 , Pages: 1951-1966 .
Authors: Chandralekha E.;Thangamani A.;Valliappan R.
DOI 10.1007/s11164-013-1322-x
2 7

9-(2,4-Difluorophenyl)-3,3,6,6-tetramethyl-3,4,5,6,7,9-hexahydro-2H- xanthene-1,8-dione

Open Access
Article
Year: 2014. Volume: 70 , Issue: 3 , Pages: o276-o277 .
Authors: Begum R.S.;Hema R.;Sumathi G.;Valliappan R.;Srinivasan N.
DOI 10.1107/S1600536814002761
1

Synthesis, characterization and biological studies of some 3, 5-diaryl-tetrahydro-N-formyl-1, 4-thiazine-1, 1-dioxide

Open Access
Article
Year: 2013. Volume: 5 , Issue: 1 , Pages: 99-103 .
Authors: Govindan S.;Valliappan R.;Chakravarthy J.;Vanitha P.;Sundari V.
9

Ultrasound-promoted regioselective and stereoselective synthesis of novel spiroindanedionepyrrolizidines by multicomponent 1,3-dipolar cycloaddition of azomethine ylides

Open Access
Article
Research on Chemical Intermediates. Year: 2013. Volume: 39 , Issue: 3 , Pages: 961-972 .
Authors: Chandralekha E.;Thangamani A.;Valliappan R.
DOI 10.1007/s11164-012-0608-8
16 18

Isolation of flavonoids and biological activities of Crotalaria Grahamiana

Open Access
Article
Year: 2012. Volume: 4 , Issue: 7 , Pages: 3665-3671 .
Authors: Vanitha P.;Valliappan R.;Charles A.;Sukumar D.
1

Synthesis and antimicrobial screening of novel 2,6- ditertiarybutylpiperidin-4-ones

Open Access
Article
Medicinal Chemistry Research. Year: 2012. Volume: 21 , Issue: 11 , Pages: 3687-3691 .
Authors: Govindaraju C.;Valliappan R.;Sundari V.
DOI 10.1007/s00044-011-9913-9
2