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Potassium Carbonate → 5-[4-Ethoxy-2-(3-hydroxymethyl-oxetan-3-ylmethoxy)-3-methoxy-phenyl]-3H-isobenzofuran-1-one

HRID 2171138
Notes
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Reaction equation

HRID 2171138 reaction equation
[CH2:1]([O:3][C:4]1[CH:9]=[CH:8][C:7]([C:10]2[CH:11]=[C:12]3[C:16](=[CH:17][CH:18]=2)[C:15](=[O:19])[O:14][CH2:13]3)=[C:6]([OH:20])[C:5]=1[O:21][CH3:22])[CH3:2].C(=O)([O-])[O-].[K+].[K+].Br[CH2:30][C:31]1([CH2:35][OH:36])[CH2:34][O:33][CH2:32]1>C(#N)C>[CH2:1]([O:3][C:4]1[CH:9]=[CH:8][C:7]([C:10]2[CH:11]=[C:12]3[C:16](=[CH:17][CH:18]=2)[C:15](=[O:19])[O:14][CH2:13]3)=[C:6]([O:20][CH2:30][C:31]2([CH2:35][OH:36])[CH2:34][O:33][CH2:32]2)[C:5]=1[O:21][CH3:22])[CH3:2]
ParticipantsConditionsProcedureWorkupSources & evidenceReaction notes

Participants

5

Reactant 3

HCID 11430Potassium CarbonateHCID 529264[3-(Bromomethyl)oxetan-3-yl]methanolHCID 701700835-(4-Ethoxy-2-hydroxy-3-methoxyphenyl)isobenzofuran-1(3H)-one

Product 1

HCID 674678445-[4-Ethoxy-2-(3-hydroxymethyl-oxetan-3-ylmethoxy)-3-methoxy-phenyl]-3H-isobenzofuran-1-oneYield 28.2%

Reagents, catalysts & solvents 1

HCID 6342
Acetonitrile
Solvent

Conditions

Temperature
80 °C

Procedure

To a stirring solution of 5-(4-ethoxy-2-hydroxy-3-methoxyphenyl)isobenzofuran-1(3H)-one (80 mg, 0.266 mmol) in acetonitrile (7 mL) was added potassium carbonate (110 mg, 0.798 mmol) and (3-Bromomethyl-oxetan-3-yl)-methanol (96 mg, 0.532 mmol) and the resultant reaction mixture was heated to 80° C. for 16 h. The reaction mixture was cooled to RT, filtered through celite and the filtrate was concentrated under reduced pressure. Purification of the residue by flash column chromatography (silica gel, 0-25% ethyl acetate in pet ether) afforded title compound as a solid (30 mg, 28%).

Workup

  1. customthe resultant reaction mixture
  2. temperatureThe reaction mixture was cooled to RT
  3. filtrationfiltered through celite
  4. concentrationthe filtrate was concentrated under reduced pressure
  5. customPurification of the residue by flash column chromatography (silica gel, 0-25% ethyl acetate in pet ether)

Sources & evidence

ORD record
ord-00fa7bdf52c34b0d9aa7d558f9661d1d
Source dataset
uspto-grants-2015_06
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US09051290B2

Reaction notes

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On this pageParticipantsConditionsProcedureWorkupSources & evidenceReaction notes