Piperidine → (E)-1-methyl-4-(2-(9-methyl-9H-carbazol-3-yl)vinyl)quinolinium iodide

HRID 1477344Notes

Reaction equation

HRID 1477344 reaction equation
[I-:1].[CH3:2][N+:3]1[C:12]2[C:7](=[CH:8][CH:9]=[CH:10][CH:11]=2)[C:6]([CH3:13])=[CH:5][CH:4]=1.[CH3:14][N:15]1[C:27]2[CH:26]=[CH:25][C:24]([CH:28]=O)=[CH:23][C:22]=2[C:21]2[C:16]1=[CH:17][CH:18]=[CH:19][CH:20]=2.N1CCCCC1>C(O)C>[I-:1].[CH3:2][N+:3]1[C:12]2[C:7](=[CH:8][CH:9]=[CH:10][CH:11]=2)[C:6](/[CH:13]=[CH:28]/[C:24]2[CH:25]=[CH:26][C:27]3[N:15]([CH3:14])[C:16]4[C:21]([C:22]=3[CH:23]=2)=[CH:20][CH:19]=[CH:18][CH:17]=4)=[CH:5][CH:4]=1

Participants

5

Reactant 3

HCID 8082PiperidineHCID 6106669-Methyl-9H-carbazole-3-carbaldehydeHCID 110769741,4-Dimethylquinolinium iodide

Product 1

HCID 66575887(E)-1-methyl-4-(2-(9-methyl-9H-carbazol-3-yl)vinyl)quinolinium iodideYield 62%

Reagents, catalysts & solvents 1

HCID 702EthanolSolvent

Procedure

A solution mixture of 1,4-dimethylquinolinium iodide (0.14 g, 0.5 mmol), 3b (0.13 g, 0.6 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 Me-SLM (0.14 g) in 62% yield. 1H NMR (400 MHz, DMSO-d6) δ 9.27 (d, J=6.4 Hz, 1H), 9.12 (d, J=8.4 Hz, 1H), 8.86 (s, 1H), 8.49 (d, J=6.4 Hz, 1H), 8.45-8.23 (m, 5H), 8.15 (d, J=8.8 Hz, 1H), 8.06 (t, J=7.6 Hz, 1H), 7.75 (d, J=8.4 Hz, 1H), 7.66 (d, J=8.0 Hz, 1H), 7.55 (t, J=7.6 Hz, 1H), 7.32 (t, J=7.6 Hz, 1H), 4.51 (s, 3H), 3.95 (s, 3H). 13C NMR (400 MHz, DMSO-d6) δ 152.9, 147.3, 144.8, 142.2, 141.2, 138.7, 134.8, 128.8, 127.4, 126.6, 126.4, 126.3, 126.0, 122.6, 122.0, 121.8, 120.4, 119.7, 119.1, 116.0, 115.0, 109.8, 109.7, 44.3, 29.3. HRMS (MALDI-TOF) m/z Calcd for C25H21N2 349.1699. Found 349.1694 [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

Sources & evidence

ORD record
ord-600d7d13697e4c0aa1a4202aa591ea47
Source dataset
uspto-grants-2016_08
Patent number
US09403794B2

Reaction notes

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