Water → 2-Acetyl-4-(2-propoxy-3,5-di-iso-propylphenyl)-benzo[b]thiophene

HRID 1394601Notes

Reaction equation

HRID 1394601 reaction equation
[CH:1]([C:4]1[C:5]([O:16][CH2:17][CH2:18][CH3:19])=[C:6](B(O)O)[CH:7]=[C:8]([CH:10]([CH3:12])[CH3:11])[CH:9]=1)([CH3:3])[CH3:2].[C:20]([C:23]1[S:27][C:26]2[CH:28]=[CH:29][CH:30]=[C:31](I)[C:25]=2[CH:24]=1)(=[O:22])[CH3:21].C(=O)([O-])[O-].[Na+].[Na+].O>C1(C)C=CC=CC=1.C(O)C.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[C:20]([C:23]1[S:27][C:26]2[CH:28]=[CH:29][CH:30]=[C:31]([C:6]3[CH:7]=[C:8]([CH:10]([CH3:12])[CH3:11])[CH:9]=[C:4]([CH:1]([CH3:2])[CH3:3])[C:5]=3[O:16][CH2:17][CH2:18][CH3:19])[C:25]=2[CH:24]=1)(=[O:22])[CH3:21]

Participants

8

Reactant 4

HCID 962WaterHCID 10340Sodium CarbonateHCID 121440122-Propoxy-3,5-diisopropyl-phenylboronic acidHCID 179527062-Acetyl-4-iodo benzo[b]thiophene

Product 1

HCID 179527092-Acetyl-4-(2-propoxy-3,5-di-iso-propylphenyl)-benzo[b]thiophene

Reagents, catalysts & solvents 3

HCID 178418397HCID 178418397, compoundCatalystHCID 702EthanolSolventHCID 1140TolueneSolvent

Procedure

A mixture of 1.08 mmol of 3,5-di-iso-propyl-2-propoxy phenylboronic acid, 1.62 mmol of 2-acetyl-4-iodo benzo[b]thiophene (see Example 14, step A) and 62 mg (0.05 mmol) of Pd(PPh3)4, 1 mL of 2N aqueous sodium carbonate in 9 mL of toluene and 4 mL ethanol was heated to reflux. After complexion (TLC), water was added and the solution was extracted with ethyl acetate. The organic layer is dried over MgSO4 and after evaporation of the solvents, the crude oil was purified over a short silica plug (eluent: 10/90=ethyl acetate/hexane) to afford 2-acetyl-4-(2-propoxy-3,5-di-iso-propylphenyl)-benzo[b]thiophene.

Workup

  1. temperaturewas heated to reflux
  2. extractionthe solution was extracted with ethyl acetate
  3. dry with materialThe organic layer is dried over MgSO4
  4. customafter evaporation of the solvents
  5. customthe crude oil was purified over a short silica plug (eluent: 10/90=ethyl acetate/hexane)

Sources & evidence

ORD record
ord-4a23e8a2ea7c4bc195e3f714c7e8f86a
Source dataset
uspto-grants-2008_03
Patent number
US07348359B2

Reaction notes

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