Methyl iodide → HCID 59263322, compound

HRID 425689Notes

Reaction equation

HRID 425689 reaction equation
[OH:1][C:2]1[CH:6]=[C:5]([C:7]([F:10])([F:9])[F:8])[S:4][C:3]=1[CH2:11][N:12]1[C:20]2[C:15](=[CH:16][CH:17]=[CH:18][CH:19]=2)[C:14]2([C:24]3=[CH:25][C:26]4[O:30][CH2:29][O:28][C:27]=4[CH:31]=[C:23]3[O:22][CH2:21]2)[C:13]1=[O:32].[OH-].[Na+].I[CH3:36]>CN(C)C=O>[CH3:36][O:1][C:2]1[CH:6]=[C:5]([C:7]([F:8])([F:9])[F:10])[S:4][C:3]=1[CH2:11][N:12]1[C:20]2[C:15](=[CH:16][CH:17]=[CH:18][CH:19]=2)[C:14]2([C:24]3=[CH:25][C:26]4[O:30][CH2:29][O:28][C:27]=4[CH:31]=[C:23]3[O:22][CH2:21]2)[C:13]1=[O:32]

Participants

5

Reactant 3

HCID 6328Methyl iodideHCID 14798Sodium HydroxideHCID 59263511HCID 59263511, compound

Product 1

HCID 59263322HCID 59263322, compoundYield 81%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

A mixture of 1′-{[3-hydroxy-5-(trifluoromethyl)-2-thienyl]methyl}spiro[furo[2,3-f][1,3]benzodioxole-7,3′-indol]-2′(1H)-one (0.18 g, 0.39 mmol), NaOH (0.08 g, 1.96 mmol) and iodomethane (0.17 g, 1.18 mmol) in anhydrous N,N-dimethylformamide (2.00 mL) was stirred at ambient temperature for 16 h. The reaction was quenched by addition of saturated ammonium chloride (10.0 mL) and extracted with ethyl acetate (3×50.0 mL). The combined organic layers was washed with water (3×20.0 mL), brine (20.0 mL), dried over anhydrous sodium sulfate and filtered. The filtrate was concentrated in vacuo to dryness. The colorless solid was triturated with ether to give the title compound (0.15 g, 81%): mp 178-180° C.; 1H NMR (300 MHz, DMSO-d6) δ 7.71 (s, 1H), 7.30 (dt, 1H), 7.15 (d, 1H), 7.07-7.02 (m, 2H), 6.68 (s, 1H), 6.08 (s, 1H), 5.89 (d, 2H), 4.95 (ABq, 2H), 4.70 (ABq, 2H), 3.90 (s, 3H); 13C NMR (75 MHz, DMSO-d6) δ 177.0, 155.8, 154.9, 148.9, 142.2, 141.8, 132.1, 129.4, 125.7, 124.3, 123.8, 120.4, 120.3, 120.0, 119.5, 109.4, 103.2, 102.0, 93.9, 80.1, 59.9, 57.9, 34.9; MS (ES+) m/z 476.3 (M+1).

Workup

  1. customThe reaction was quenched by addition of saturated ammonium chloride (10.0 mL)
  2. extractionextracted with ethyl acetate (3×50.0 mL)
  3. washThe combined organic layers was washed with water (3×20.0 mL), brine (20.0 mL)
  4. dry with materialdried over anhydrous sodium sulfate
  5. filtrationfiltered
  6. concentrationThe filtrate was concentrated in vacuo to dryness
  7. customThe colorless solid was triturated with ether

Sources & evidence

ORD record
ord-fc00ccdc76de470892073c78c4b157ea
Source dataset
uspto-grants-2012_01
Patent number
US08106087B2

Reaction notes

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