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Yield: 79 %. 1 H NMR (300 MHz, DMSO-d6) : δ = 9.09 (d, J = 4.53 Hz, 1H), 9.01 (d, J = 6.00 Hz, 1H), 8.04 (s, 1H), 7.85 (m, 2H), 7.37 (m, 3H), 4.92 (m, 2H), 3.38 (m, 4H). 13 C NMR (75.5 MHz, DMSO-d6): δ = 167.5, 164.1, 160.9, 154.7, 148.4, 134.0 (d), 129.4 (d), 115.4, 115.1, 111.9, 90.3, 62.7, 48.1 (×2). 5-(4-Bromophenyl)-N-(2-(4-(4-methoxyphenyl)-1H-1,2,3-triazol-1-yl)ethyl)-1Himidazol-2-amine (BS-219) Br N H N N H N N N Yield: 66 %. 1 H NMR (300 MHz, DMSO-d6): δ = 10.62 (br s, 1H), 8.45 (s, 1H), 7.43 (d, J = 8.8 Hz, 2H), 7.57 (d, J = 7.9 Hz, 2H), 7.43 (d, J = 8.8 Hz, 2H), 7.10 (s, 1H), 6.98 (d, J = 8.8 Hz, 2H), 6.02 (m, 1H), 4.60 (t, J = 5.90 Hz, 2H), 3.78 (s, 3H), 3.68 (m, 2H). 13 C NMR (75.5 MHz, DMSO-d6): δ =158.8, 150.0, 146.0, 131.0, 126.4 (×4), 125.5 (×2), 123.4, 120.7, 117.5, 114.2 (×4), 55.0, 49.2. 42.8. HRMS (EI) C20H19BrN6O, calcd 438.0804, found :438.0811. 5-Phenyl-N-(3-(4-phenyl-1H-1,2,3-triazol-1-yl)propyl)-1H-imidazol-2-amine (BS- 238) N N H N H N N N Yield: 90 %. 1 H NMR (300 MHz, DMSO-d6): δ = 10.91 (br s, 1H), 8.63 (s, 1H), 7.88 (d, J = 7.2 Hz, 2H), 7.59 (d, J = 7.2 Hz, 2H), 7.44 (t, J = 7.7 Hz, 2H), 7.27 (m, 3H), 7.08 (m, 2H), 6.09 (br s, 1H), 4.50 (t, J = 7.1 Hz, 2H), 3.21 (m, 2H), 2.21 (m, 2H). 13 C NMR (75.5 MHz, DMSO-d6): δ = 150.3, 146.2, 133.0, 132.3, 130.8, 128.8 (×2), 128.3, 127.7, 125.6, 125.0 (×2), 123.6 (×2), 121.4, 110.4, 104.1, 47.3, 28.8 (×2). HRMS (EI) C20H20N6, calcd 344.1749, found : 344.1734. 5-Phenyl-N-(2-(4-phenyl-1H-1,2,3-triazol-1-yl)ethyl)-1H-imidazol-2-amine (BS- 228) N H N N H N N N O
Yield: 84 %. 1 H NMR (300 MHz, DMSO-d6): δ = 10.68 (br s, 1H), 8.57 (s, 1H), 7.82 (d, J = 7.3 Hz, 2H), 7.61 (m, 2H), 7.43 (t, J = 7.6 Hz, 2H), 7.28 (m, 3H), 7.06 (m, 2H), 6.01 (br s, 1H), 4.63 (t, J = 6.1 Hz, 2H), 3.70 (m, 2H). 13 C NMR (75.5 MHz, DMSO-d6): δ = 150.3, 146.1, 130.4, 128.8 (×4), 128.2, 127.7, 125.1, 125.0 (×4), 123.4, 121.7, 104.1, 49.3. 42.9. HRMS (EI) C19H18N6, calcd 330.1593, found : 330.1582. 5-(4-Bromophenyl)-N-(2-(4-p-tolyl-1H-1,2,3-triazol-1-yl)ethyl)-1H-imidazol-2amine (BS-231) Br N H N N H N N N Yield: 73 %. 1 H NMR (300 MHz, DMSO-d6): δ = 10.66 (br s, 1H), 8.50 (s, 1H), 7.70 (d, J = 8.07 Hz, 2H), 7.57 (d, J = 8.31 Hz, 2H), 7.43 (d, J = 8.56 Hz, 2H), 7.22 (d, J = 8.07 Hz, 2H), 7.13 (s, 1H), 6.03 (br s, 1H), 4.61 (t, J = 5.80 Hz, 2H), 3.68 (m, 2H), 2.32 (s, 3H). 13 C NMR (75.5 MHz, DMSO-d6): δ = 150.4, 146.1, 136.9 (×2), 130.9 (×2), 129.3 (×4), 128.0, 125.3, 124.9 (×3), 121.2, 117.4, 49.2, 42,8, 20.7. HRMS (EI) C20H19BrN6, calcd 422.0855, found : 422.0863. N-(2-(4-(4-Butylphenyl)-1H-1,2,3-triazol-1-yl)ethyl)-5-(naphthalen-1-yl)-1Himidazol-2-amine (BS-275) N H N N H N N N C4H9 Yield: 64 %. 1 H NMR (300 MHz, DMSO-d6): δ = 10.9 (br s, 1H), 8.54 (s, 1H), 8.14 (s, 1H), 7.73 (m, 6H), 7.37 (m, 2H), 7.23 (m, 3H), 6.01 (m, 1H), 4.68 (m, 2H), 3.74 (m, 2H), 2.58 (t, J = 7.4 Hz, 2H), 1.56 (m, 2H), 1.32 (m, 2H), 0.89 (t, J = 7.4 Hz, 3H). 13 C NMR (75.5 MHz, DMSO-d6): δ = 150.7, 146.2, 141.8, 133.5, 131.3, 128.7 (×3), 128.3, 127.5, 127.3 (×3), 126.0, 125.0 (×3), 124.6, 123.2, 121.3, 120.2, 49.3, 42.9, 34.5, 32.9, 21.7, 13.7. HRMS (EI) C27H28N6, calcd 436.2375, found : 436. 2349.
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Saurashtra University Re - Accredit
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JANUARY-2011 Statement under O. Ph.
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Acknowledgment This thesis arose in
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since I was a child. My Mother Hans
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CHAPTER - 2 Microwave Assisted Synt
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5.5 Results and discussion 156 5.6
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Ms Mesyl MW Microwave NBS N-bromosu
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1. Microwave Assisted Organic Synth
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1.4 Heating Mechanism In microwave
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1.5. Effects of solvents Every solv
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1.7 Application of microwave in org
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aromatic amines, Lancini’s group
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1.9 2-Aminoimidazole Alkaloids The
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Recently group of Erik 83 described
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1.10 Methods for the preparation of
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R 1 O X R 2 NH 2 H 2N NAc R 1 HN R
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this manifold, was reported in 1925
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Another route to 4(5)-acyl-2-amino-
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this series of compounds against th
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documented. Extra care is needed be
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Very recently the research group of
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OH a,b O N H2N N Boc N 3 H N R N N
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1.12.2 Biofilm Growth Cycle 1) Plan
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can survive both the onslaught of a
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[26] Leadbeater, N. E. (2004) Chemi
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[86] Kreutzberger, A. (1962) J. Org
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Microwave Assisted Synthesis & Stru
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2.1 Introduction As described in ch
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2.3 Proposed Mechanism: Regarding t
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No. 12 60 120 traces 84 a All react
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the development of biofilm related
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In first instance, a series of 2-hy
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Br N N N R 1 OH Br N N N R 1 OH Fig
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do have a very strong effect agains
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2.6 Conclusion In the present study
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2.8 Biological assays 2.8.1 Static
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2.9 Experimental protocol: 2.9.1 Ge
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temperature of 80 °C and a maximum
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29.5,29.4, 29.2, 27.0, 22.6, 14.1.
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Yield: 78 %. 1 H NMR (300 MHz, CDCl
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N Br N N C 14H 29 OH Yield: 72 %. 1
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(75.5 MHz, CDCl3): δ = 167.7, 154.
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N Br N N C 14H 29 OH Cl Yield: 90 %
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2-(3,4-Dichlorophenyl)-2-hydroxy-1-
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N Br N N C 8H 17 OH NO 2 Yield: 49
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C3H7 HN N N H Cl Cl Yield : 70 %. 1
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(s, 1H), 3.16 (s, 3H), 1.80 (m, 2H)
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5-(4’-Nitrobiphenyl-4-yl)-N-octyl
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2.11 Representative NMR spectra 2.1
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2.11.3 10.4329 0.7429 151.5720 10.0
Page 103 and 104: [21] Matz C, McDougald D, Moreno A.
Page 105 and 106: Chapter-3 Structure Activity Relati
Page 107 and 108: imidazoles, where the addition of a
Page 109 and 110: 3.4 Result and Discussion It was fo
Page 111 and 112: No. H 2N Compound Code N N C8H17 R1
Page 113 and 114: medium used in the set-up to monito
Page 115 and 116: H 2N N N N H2N N R R Figure-1 Effec
Page 117 and 118: 3.5.3 Cyclo-alkyl 2-aminoimidazoles
Page 119 and 120: 3.6. Conclusion In the present stud
Page 121 and 122: 3.8. Experimental protocols 3.8.1 G
Page 123 and 124: 122.6, 54.6, 33.3(×2), 27.3 (×2),
Page 125 and 126: Yield: 52 %. 1 H NMR (300 MHz, CDCl
Page 127 and 128: 5-(4-Chlorophenyl)-1-cyclooctyl-1H-
Page 129 and 130: Yield: 50 %. Mp: 76-78 ° C. 1 H NM
Page 131 and 132: 5-(4-Chlorophenyl)-1-cyclobutyl-1H-
Page 133 and 134: Yield: 66%. 1 H NMR (300 MHz, CDCl3
Page 135 and 136: 3.10 Representative NMR spectra 3.1
Page 137 and 138: 3.11 References [1] (a) Alvi K. A,
Page 139 and 140: Copper Catalyzed Microwave Assisted
Page 141 and 142: 4.1 Introduction There are only a f
Page 143 and 144: (Table-1, No- 6). Next reaction tem
Page 145 and 146: No. Product, Yield b (%) No. Produc
Page 147 and 148: 4.4 Possible Mechanism Regarding th
Page 149 and 150: 4.7 Experimental protocols 4.7.1 Ge
Page 151 and 152: Yield: 69 %. 1 H NMR (300 MHz, CDCl
Page 153: 1-(3-Azidopropyl)-2-(3,4-dichloroph
Page 157 and 158: Yield: 80 %. 1 H NMR (300 MHz, DMSO
Page 159 and 160: Yield: 83 %. 1 H NMR (300 MHz, DMSO
Page 161 and 162: 1H), 1.66 (m, 6H), 1.70 (m, 2H). 13
Page 163 and 164: 5.48 Hz, 2H), 3.59 (m, 2H), 3.16 (d
Page 165 and 166: 4.10 References [1] For a general r
Page 167 and 168: Crystal and Molecular Structure Ana
Page 169 and 170: 5.1 Introduction The membrane efflu
Page 171 and 172: oscillation range of 5˚ and proces
Page 173 and 174: C12-C13 1.372(4) C32-C37 1.390(3) C
Page 175 and 176: Fig.-3: Packing of the molecules wh
Page 177 and 178: 1 H NMR (400 MHz CDCl3): δ = 7.57-
Page 179 and 180: 5.9.2 13 C spectra of bs-DP-7
Page 181 and 182: SUMMARY The work represented in the
Page 183 and 184: CONFERENCES/SEMINARS/WORKSHOPS ATTE
Page 185: PUBLICATIONS [1] One-Pot Microwave-
Page 200 and 201: Scheme 2 Competitive formation of 1
Page 202 and 203: Table 2 continued 9 10 11 12 N hydr
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8. Colson G, Raboult L, Lavelle F,
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