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Dr. Paritosh Biswas

Designation: Associate Professor & TIC
Qualification: M.Sc. (University of Kalyani, 1994), Ph.D. (University of Kalyani, 2001)
Email: biswasparitosh@yahoo.co.in
Specialization: Organic Chemistry
Syllabus Taught:
Semester Hons. Programme
Sem-I
  • CC-2: Bonding and Physical Properties, Stereochemistry-I
  • CC-1/GE-1 (Organic-I): Aliphatic Hydrocarbons
Sem-II
  • CC-4: General Treatment of Reaction Mechanism-II, Substitution and Elimination Reactions
  • CC-2/GE-2 (Physical-I): Liquids, Solids
Sem-III
  • CC-7: Aromatic Substitution, Carbonyl and Related Compounds, Organometallics
  • CC-3 (Organic-II): Aryl Halides, Alcohols, Phenols and Ethers
Sem-IV
  • CC-10: Nitrogen compounds, Rearrangements, The Logic of Organic Synthesis
  • --
Sem-V
  • DSE-1A: Properties of Polymer,
  • DSE-2B: Elemental analysis (Excitation and atomization)
  • DSE-1 (Analytical and Enviromental): Environmental Chemistry,
  • DSE-1 (Analytical Industrial): Computer applications
Sem-VI
  • CC-14: Carbocycles and Heterocycles, Carbohydrates,
  • DSE-4: Project Work
  • DSE-2 (Advanced Organic): Amino Acids and Carbohydrates;
  • DSE-2 (Industrial): Paints, Varnishes, Synthetic dyes, Fermentation chemicals, Fats and oils, Pesticides
Awards / Achievements
  1. Govt. of WB Merit Scholarship (1989-1992)
  2. UGC (Govt. of India) Fellowship (1995-1997)
  3. NET-CSIR (Govt. of India) Fellowship (1997-99)
Academic / Professional Membership Life Member - Indian Association for the Cultivation of Science
Research Experience: 10 Years
Research Interest: Synthetic Organic Chemistry
List of Publications:
Research :
  1. K. C. Majumdar, P. Biswas and G. H. Jana, Studies on Amine Oxide Rearrangement: Regioselective Synthesis of Pyrrolo [3,2-f]quinolin-7-ones, J. Chem. Res. (S), (1997) : 310-312; J. Chem. Res. (M), (1997) : 2068-2079. DOI: doi.org/10.1039/A702432K
  2. K. C. Majumdar and P. Biswas, Studies in Sulfoxide Rearrangement: Regioselective Synthesis of Thieno[3,2-f]quinolin-7 (6H)-one Derivatives, Tetrahedron,54 (1998) : 11603-11612. DOI: doi.org/10.1016/S0040-4020(98)00685-1
  3. K. C. Majumdar, P. K. Choudhury and P. Biswas, Cyclisation of 3-Cyclopent-2-enyl-4-hydroxy[1]benzopyran-2-one, Indian J. Chem.,37B (1998) : 1197-1201. DOI: NA
  4. K. C. Majumdar and P. Biswas, Reactions of Derivatives of 1,4-Dichlorobut-2-yne Leading to Heterocycles, Heterocycles, 50 (1999) : 1227-1268. DOI: 10.1002/chin.199925286
  5. K. C. Majumdar and P. Biswas, Synthesis of Bioactive Heterocycles: One Pot Regioselective Synthesis of Pyrano[3,2-f] benzo-(b)thiophene Derivatives, Tetrahedron, 55 (1999) : 1449-1456. DOI: doi.org/10.1016/S0040-4020(98)01124-7
  6. K. C. Majumdar, A. K. Kundu and P. Biswas, Unusual Ring Contraction of 3H-Pyrano[2,3-c]quinolin-5(6H)-ones to Furo[2,3 -c]quinolin-4(5H)-ones, Heterocycles, 51 (1999) : 471-474. DOI: 10.1002/chin.199927164
  7. K. C. Majumdar, A. K. Kundu and P. Biswas, Synthesis of furo[3,2-c]quinolin-4(5H)-ones, Heterocycles, 51 (1999) : 2399-2406. DOI: 10.1002/chin.200005160
  8. K. C. Majumdar, P. Biswas and S. K. Ghosh, Studies in [3, 3] sigmatropic rearrangement: Regioselective cyclization of 5-(cyclohex-2-enyl)-6-hydroxy-1-methylquinolin-2(1H)-one, Synth. Commun., 30 (2000) : 4113-4128. DOI: doi.org/10.1080/00397910008087028
  9. K. C. Majumdar, P. Biswas and P. K. Choudhury, Cyclisation of 3-Cyclopentenyl-4-hydroxy[1]benzopyran-2-one, Synth. Commun., 30 (2000) : 4047-4056. DOI: doi.org/10.1080/00397910008087020
  10. K. C. Majumdar, S. K. Ghosh and P. Biswas, Regioselective Synthesis of Pyrano[3,2-f]quinolin-2(7H)-ones and Furo [3,2-f]quinolin-2-ones, Monatshefte fur Chemie, 131 (2000) : 967-973. DOI: class="color"doi.org/10.1007/PL00010318
  11. K. C. Majumdar,B. Roy and P. Biswas, Thiochromone-Annelated Heterocycles: Regioselective Synthesis of Furo[3,2-b] benzothio-pyran-9-ones, Monatshefte fur Chemie, 132 (2001) : 739-746. DOI: doi.org/10.1007/s007060170089
  12. K. C. Majumdar, P. K. Basu, P. P. Mukhopadhyay, S. Sarkar, S. K. Ghosh and P. Biswas, Regioselective Synthesis of 1H,3H,6H-[2]benzopyrano[4,3-d]pyrimidine-2,4-dione and 12H– benzopyrano[3,2-c][1]benzopyran-5-ones by radical cyclization, Tetrahedron, 59 (2003) : 2151-2157. DOI: doi.org/10.1016/S0040-4020(03)00182-0
  13. K. C. Majumdar, B. Roy, P. K. Basu and P. Biswas, Studies in Amine Oxide Rearrangement: Meisenheimer Rearrangement of m-substituted tertiary amine oxides, Indian J. Chem., 45B (2006) : 719-725. DOI: NA
Conference / Seminar / Workshop details:
Level Paper presented Attended
International -- 01
National -- 17
State 01 09
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