Hydrochloric Acid → HCID 22286311, compound

HRID 1062266Notes

Reaction equation

HRID 1062266 reaction equation
[OH:1][CH2:2][CH2:3][CH2:4][O:5][N:6]1[C:14](=[O:15])[C:13]2[C:8](=[CH:9][CH:10]=[CH:11][CH:12]=2)[C:7]1=[O:16].N1C=CN=C1.[Si:22](Cl)([C:25]([CH3:28])([CH3:27])[CH3:26])([CH3:24])[CH3:23].Cl>ClCCl>[C:25]([Si:22]([CH3:24])([CH3:23])[O:1][CH2:2][CH2:3][CH2:4][O:5][N:6]1[C:14](=[O:15])[C:13]2[C:8](=[CH:9][CH:10]=[CH:11][CH:12]=2)[C:7]1=[O:16])([CH3:28])([CH3:27])[CH3:26]

Participants

6

Reactant 4

HCID 313Hydrochloric AcidHCID 795ImidazoleHCID 28928tert-Butyldimethylsilyl chlorideHCID 22285910HCID 22285910, compound

Product 1

HCID 22286311HCID 22286311, compoundYield 99.1%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

To a solution of 2-(3-hydroxy-propoxy)-isoindole-1,3-dione (17.5 g, 79.1 mmol) and imidazole (5.92 g, 86.1 mmol) in dichloromethane (200 mL) was added tert-butyldimethylsilyl chloride (13.2 g, 86.1 mmol). After 30 min, the reaction was transferred to a separatory funnel and shaken with dilute aqueous hydrochloric acid (400 mL). The organic layer was washed with saturated aqueous sodium bicarbonate, dried over magnesium sulfate and concentrated in vacuo to afford 2-[3-(tert-Butyl-dimethyl-silanyloxy)-propoxy]-isoindole-1,3-dione (26.3 g, 99% yield) as a viscous liquid: 1H NMR (400 MHz, CDCl3) δ 7.76 (m, 2H), 7.67 (m, 2H), 4.25 (t, 2H, J=5.9 Hz), 3.77 (t, 2H, J=6.0 Hz), 1.91 (quintet, 2H, J=6.1 Hz), 0.82 (s, 9H), 0.00 (s, 6H).

Workup

  1. customthe reaction was transferred to a separatory funnel
  2. washThe organic layer was washed with saturated aqueous sodium bicarbonate
  3. dry with materialdried over magnesium sulfate
  4. concentrationconcentrated in vacuo

Sources & evidence

ORD record
ord-0ce0678a112b4d628c42988145fd3ef1
Source dataset
uspto-grants-2005_11
Patent number
US06960614B2

Reaction notes

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