Piperidine → (E)-1-ethyl-4-(2-(9-(2-(2-methoxyethoxy)ethyl)-9H-carbazol-3-yl)vinyl)quinolinium bromide

HRID 1477342Notes

Reaction equation

HRID 1477342 reaction equation
[Br-:1].[CH2:2]([N+:4]1[C:13]2[C:8](=[CH:9][CH:10]=[CH:11][CH:12]=2)[C:7]([CH3:14])=[CH:6][CH:5]=1)[CH3:3].[CH3:15][O:16][CH2:17][CH2:18][O:19][CH2:20][CH2:21][N:22]1[C:34]2[CH:33]=[CH:32][C:31]([CH:35]=O)=[CH:30][C:29]=2[C:28]2[C:23]1=[CH:24][CH:25]=[CH:26][CH:27]=2.N1CCCCC1>C(O)C>[Br-:1].[CH2:2]([N+:4]1[C:13]2[C:8](=[CH:9][CH:10]=[CH:11][CH:12]=2)[C:7](/[CH:14]=[CH:35]/[C:31]2[CH:32]=[CH:33][C:34]3[N:22]([CH2:21][CH2:20][O:19][CH2:18][CH2:17][O:16][CH3:15])[C:23]4[C:28]([C:29]=3[CH:30]=2)=[CH:27][CH:26]=[CH:25][CH:24]=4)=[CH:6][CH:5]=1)[CH3:3]

Participants

5

Reactant 3

HCID 8082PiperidineHCID 177735061-Ethyl-4-methylquinolinium bromideHCID 866726799-(2-(2-methoxyethoxy)ethyl)-9H-carbazole-3-carbaldehyde

Product 1

HCID 66575883(E)-1-ethyl-4-(2-(9-(2-(2-methoxyethoxy)ethyl)-9H-carbazol-3-yl)vinyl)quinolinium bromideYield 53%

Reagents, catalysts & solvents 1

HCID 702EthanolSolvent

Procedure

A solution mixture of 6 (0.20 g, 0.8 mmol), 3a (0.33 g, 1.1 mmol) and piperidine (0.1 mL) in ethanol (40 mL) was heated to reflux overnight. After cooling down to room temperature, the organic solvent was removed. The residue was purified by precipitation from methanol and ethyl acetate to afford SLE (0.22 g) in 53% yield. 1H NMR (400 MHz, DMSO-d6) δ 9.34 (d, J=8.4 Hz, 1H), 9.15 (d, J=8.4 Hz, 1H), 8.86 (s, 1H), 8.54-8.51 (m, 2H), 8.44 (d, J=16 Hz, 1H), 8.36 (d, J=16 Hz, 1H), 8.28-8.23 (m, 2H), 8.12 (d, J=8.0 Hz, 1H), 8.05 (t, J=7.6 Hz, 1H), 7.77 (d, J=8.4 Hz, 1H), 7.70 (d, J=8.4 Hz, 1H), 7.52 (t, J=7.6 Hz, 1H), 7.31 (t, J=7.6 Hz, 1H), 4.99 (tr, J=6.8 Hz, 2H), 4.63 (t, J=4.8 Hz, 2H), 3.84 (t, J=4.8 Hz, 2H), 3.48 (t, J=4.8 Hz, 2H), 3.31 (t, J=4.8 Hz, 2H), 3.11 (s, 3H), 1.59 (t, J=6.8 Hz, 3H). 13C NMR (400 MHz, DMSO-d6) δ 153.2, 146.7, 145.1, 142.2, 140.9, 137.7, 135.0, 128.9, 127.4, 126.8, 126.7, 126.5, 126.4, 122.8, 122.2, 121.8, 120.4, 119.9, 119.0, 116.2, 115.5, 110.4, 110.3, 71.3, 69.8, 68.9, 58.1, 51.9, 15.1. HRMS (MALDI-TOF) m/z Calcd for C30H31N2O2 451.2380. Found 451.2362 [M]+.

Workup

  1. temperaturewas heated
  2. temperatureto reflux overnight
  3. customthe organic solvent was removed
  4. customThe residue was purified by precipitation from methanol and ethyl acetate
  5. customto afford SLE (0.22 g) in 53% yield

Sources & evidence

ORD record
ord-befc044f77cd420ca3d3e27b174528e2
Source dataset
uspto-grants-2016_08
Patent number
US09403794B2

Reaction notes

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