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

HRID 1774078Notes

Reaction equation

HRID 1774078 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-53ed17d96d5947948b147d55de07ed25
Source dataset
uspto-grants-2016_02
Patent number
US09255933B2

Reaction notes

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