2-Methyl-2-butene → HCID 86698755, compound

HRID 1054762Notes

Reaction equation

HRID 1054762 reaction equation
[Cl:1][C:2]1[CH:10]=[C:9]2[C:5]([C:6]([CH:11]=[O:12])=[CH:7][NH:8]2)=[CH:4][C:3]=1[C:13]1[CH:18]=[CH:17][C:16]([O:19][CH2:20][CH2:21][OH:22])=[C:15]([F:23])[CH:14]=1.Cl([O-])=[O:25].[Na+].CC(=CC)C.P([O-])(O)(O)=O.[Na+]>O.C(O)(C)(C)C>[Cl:1][C:2]1[CH:10]=[C:9]2[C:5]([C:6]([C:11]([OH:25])=[O:12])=[CH:7][NH:8]2)=[CH:4][C:3]=1[C:13]1[CH:18]=[CH:17][C:16]([O:19][CH2:20][CH2:21][OH:22])=[C:15]([F:23])[CH:14]=1

Participants

7

Reactant 4

HCID 105532-Methyl-2-buteneHCID 23668197Sodium ChloriteHCID 23672064Monosodium phosphateHCID 86698754HCID 86698754, compound

Product 1

HCID 86698755HCID 86698755, compoundYield 49%

Reagents, catalysts & solvents 2

HCID 962WaterSolvent2×HCID 6386tert-ButanolSolvent

Procedure

To a solution of 6-chloro-5-[3-fluoro-4-(2-hydroxyethoxy)phenyl]-1H-indole-3-carbaldehyde (40 mg, 0.12 mmol) in water (1 mL) and t-butanol (1 mL) was added sodium chlorite (210 mg, 2.30 mmol), 2-methyl-2-butene (0.5 mL) and sodium dihydrogen phosphate (350 mg, 2.90 mmol). The reaction solution was stirred at room temperature for 10 hrs. The reaction was diluted with water (5 mL) and extracted with dichloromethane (20 mL×3). The combined organic phase was washed with water (20 mL), brine (20 mL), dried over sodium sulfate and concentrated to give a crude product. The crude was purified by preparative HPLC to give the title compound (20 mg, 49% yield) as off-white solid. MS (AP−) 348.0 (M−H)−. 1H NMR (400 MHz, CD3OD) δ 8.05 (s, 1H), 8.01 (s, 1H), 7.60 (s, 1H), 7.20 (m, 3H), 4.21 (t, 2H), 3.95 (t, 2H).

Workup

  1. extractionextracted with dichloromethane (20 mL×3)
  2. washThe combined organic phase was washed with water (20 mL), brine (20 mL)
  3. dry with materialdried over sodium sulfate
  4. concentrationconcentrated
  5. customto give a crude product
  6. customThe crude was purified by preparative HPLC

Sources & evidence

ORD record
ord-d1b74ae5a5d94a18b731ccf4d66a6a77
Source dataset
uspto-grants-2016_07
Patent number
US09394285B2

Reaction notes

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