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INTRODUCTION :The chemistry of Pyrazoline was reviewed by Jarboe in 1967. Pyrazoline hasthree possible tautomeric structures, but the structure shown is the most stablewhich can be prepared by hydrazine hydrate and acrolein.NH 2NH 2+C H 2CHONHNThe interesting biological activities of a novel heterocycle like pyrazolineshave stimulated considerable research work in recent years leading to the syntheticutility of the derivatives of this ring system.SYNTHETIC ASPECT :Different methods for the preparation of 2-Pyrazolines are as per follows :(1) The most common procedure for the synthesis of an aliphatic or aromatichydrazine with α, β - unsaturated carbonyl compounds.R"RR 1O+R''NHNH 2NR 1NR(2) 3-Amino-2-Pyrazolines can be prepared by condentation of α, β -unsaturated nitriles with hydrazine.117Pyrazoline…..
H 2 C= CHCN + Ar – NHNH 2NArN(3) 2 - Pyrazolines can also be synthesised by the condensation of chalconeswith hydrazine hydrate 395 .(4) A solution of 0.002 mol of the corresponding chalcones 3a-C, 0.3 g (0.006mol) of hydrazine hydrate and 10 ml of acetic acid was refluxed for 5hours, then catalytic amount of HCI (4-5 drops) was added and yetrefluxed for 30 min. After cooling 30 ml water was added and the resultingprecipitate was filtered, washed with water. 396OOR3a-CNNH 2 NH 2 .H 2 OAcetic AcidC H 3OCH 3ONNORN5a-CC H 3O118Pyrazoline…..
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The Sarvodaya Education Society’s
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selfless help, moral support and gu
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Introduction and Spectral studies .
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“STUDIES ON SOME HETEROCYCLICENTI
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Pyrimidine derivatives have been pr
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Isoxazole derivative synthesized by
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“STUDIES ON SOMEHETEROCYCLIC ENTI
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(b) Pharmacokinetics: It is derived
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(C) Drug DevelopmentMany natural pr
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The process of drug design is exten
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(l) Non steroidal anti-inflammatory
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INTRODUCTIONThe aza-indolizine cont
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PHARMACEUTICAL IMPORTANTMuch resear
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Compd. R 1 R 2 R 3a :- H 7-Me-6,8-B
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S. Kristjan, Gudmundsson and A. Bra
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STUDIES ON IMIDAZOPYRIDINE DERIVATI
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(a) Chalcones with monoethanolamine
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Das B.P. et al. 111 have found that
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Furthermore, Alcaraz M.J, et al. 13
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REACTION SCHEMECl+ClOClOClClCH 3NH
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Instrument : SHIMADZU FTIR 8400 Spe
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SignalNo.SignalPosition(δppm)Relat
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ANTIMICROBIAL ACTIVITYProducts : Ch
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The reaction mixture was poured on
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TABLE NO.- 1A BIOLOGICAL SCREENING
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PART-IISTUDIES ON PYRIMIDINES
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The self consistent (pi)electron de
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class of dye viz. trichloro pyrimid
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ability to cleave nucleic acid targ
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SSNHNHoONOoONOo(11) (12)oOHThe Pyri
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called ABPP or bropirimine(2-amino-
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acid so that it could be utilized f
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have reported the 5-substitutedfuro
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maturation of the viral mRNA molecu
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Nevertheless, these compounds const
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OHHNCH 3Cl(CH 2 )nSNNR 2R 1N H 2NSR
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SECTION-ISTUDIES ONOXOPYRIMIDINES
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PHARMACEUTICAL IMPORTANCEIn recent
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REACTION SCHEMECH 3NNCHOCl10% KOH R
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INSTRUMENT :SHIMADZU FTIR 8400 Spec
Page 85 and 86: SignalNo.SignalPosition(δppm)Relat
Page 87 and 88: EXPERIMENTALSynthesis and therapeut
Page 89 and 90: TABLE NO.- 2(IB)PHYSICAL CONSTANTS
Page 91 and 92: INTRODUCTIONThiopyrimidine derivati
Page 93 and 94: H 3 COHNRH 3 CH 3 CNHS( IV ) R = ar
Page 95 and 96: SYNTHESIS AND THERAPEUTIC EVALUATIO
Page 97 and 98: IR SPECTRAL STUDIES OF 6-(2-(4-CHLO
Page 99 and 100: NMR SPECTRAL STUDIES OF 6-(2-(4-CHL
Page 101 and 102: MASS SPECTRAL STUDIES OF 6-(2-(4-CH
Page 103 and 104: [F] Antimicrobial activity of 6-(2-
Page 105 and 106: SECTION-IIISTUDIES ONAMINOPYRIMIDIN
Page 107 and 108: ArCHO+ArCOCH3NaOHMethanolR R 1ONaOH
Page 111 and 112: IR SPECTRAL STUDIES OF 4-(2-(4-CHLO
Page 113 and 114: NMR SPECTRAL STUDIES OF 4-(2-(4-CHL
Page 115 and 116: MASS SPECTRAL STUDIES OF 4-(2-(4-CH
Page 117 and 118: [F] Antimicrobial activity of 4-(2-
Page 119 and 120: PART-IIISTUDIES ONCYCLOHEXENONES
Page 121 and 122: 2. Michael addition of chalcone wit
Page 123 and 124: Rheinheimer J. et al. 381have synth
Page 127 and 128: IR SPECTRAL STUDIES OF ETHYL-6-(2-(
Page 129 and 130: NMR SPECTRAL STUDIES OF ETHYL-6-(2-
Page 131 and 132: MASS SPECTRAL STUDIES OF ETHYL-6-(2
Page 133 and 134: Antimicrobial testing was carried o
Page 135: PART-IVSTUDIES ON PYRAZOLINES
Page 139 and 140: PHARMACEUTICAL IMPORTANCE :2- Pyraz
Page 141 and 142: Kadu et al. 424 and antimicrobial b
Page 143 and 144: REACTION SCHEMECH 3NNClCHO10% KOHRO
Page 145 and 146: Instrument : SHIMADZU FTIR 8400 Spe
Page 147 and 148: SignalNo.SignalPosition(δppm)Relat
Page 149 and 150: EXPERIMENTALSynthesis and therapeut
Page 151 and 152: TABLE NO.- 4(B)PHYSICAL CONSTANTS O
Page 153 and 154: INTRODUCTION:Isoxazole come under t
Page 155 and 156: PHARMACEUTICAL IMPORTANCE :Isoxazol
Page 157 and 158: SYNTHESISAND THERAPEUTIC EVALUATION
Page 159 and 160: IR SPECTRAL STUDIES OF 2-(4-CHLOROP
Page 161 and 162: NMR SPECTRAL STUDIES OF 2-(4-CHLORO
Page 163 and 164: MASS SPECTRAL STUDIES OF 2-(4-CHLOR
Page 165 and 166: [F]Antimicrobial activity of 2-(4-c
Page 167 and 168: PART-VISTUDIES ON OXIRANES
Page 169 and 170: ( iii ) Epoxidation can also been c
Page 171 and 172: Moreover, Nomura Yutaka et al. 487
Page 175 and 176: IR SPECTRAL STUDIES OF (3-(2-(4-CHL
Page 177 and 178: NMR SPECTRAL STUDIES OF (3-(2-(4-CH
Page 179 and 180: MASS SPECTRAL STUDIES OF (3-(2-(4-C
Page 181 and 182: [F] Antimicrobial activity of (3-(2
Page 184 and 185: 1. J. A. Joule and K. Mills; Hetero
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37. James J. Kaminski, D. G. perkin
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78. Ms. B. S. Hastak and B. J. Ghiy
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116. V. R. Mudalir and V. Joshi ; I
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150. S. Inoue, A. J. Saggimoto and
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197. S. S. Bahekar, D. B. Shinde; A
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238. A. Kreutzberger and M. Sellhei
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280. See, for example, W. H. Prusof
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326. C. W. Whitehead and J. J. Trav
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366. Nagarjan K., Shenoy S. J.; Ind
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396. Ausra Voskiene,Vytautas Mickev
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432. Solankee Sejal; Prajapati Yoge
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463. Mishra Ashutosh ; Jain Sanmati
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496. Kaneko Mashami, Saitoh Yutaka,
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CH 3CH 3NNClNNClORHNONRRRC 6 H 5 -
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CH 3CH 3NNClNNClEtOOCORHNNRRRC 6 H
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