Hydrochloric Acid → HCID 22221600, compound

HRID 1794528Notes

Reaction equation

HRID 1794528 reaction equation
Br[C:2]1[CH:7]=[C:6]([OH:8])[CH:5]=[CH:4][C:3]=1[C:9]1[O:10][C:11]2[CH:17]=[CH:16][C:15]([OH:18])=[CH:14][C:12]=2[CH:13]=1.[C:19]1(B(O)O)[CH:24]=[CH:23][CH:22]=[CH:21][CH:20]=1.Cl.[CH3:29][CH2:30][OH:31]>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>[CH2:30]([O:31][C:5]1[C:6]([OH:8])=[CH:7][C:2]([C:19]2[CH:24]=[CH:23][CH:22]=[CH:21][CH:20]=2)=[C:3]([C:9]2[O:10][C:11]3[CH:17]=[CH:16][C:15]([OH:18])=[CH:14][C:12]=3[CH:13]=2)[CH:4]=1)[C:29]1[CH:6]=[CH:7][CH:2]=[CH:3][CH:4]=1

Participants

6

Reactant 4

HCID 313Hydrochloric AcidHCID 702EthanolHCID 66827Phenylboronic AcidHCID 10236546HCID 10236546, compound

Product 1

HCID 22221600HCID 22221600, compound

Reagents, catalysts & solvents 1

HCID 178418397HCID 178418397, compoundCatalyst

Procedure

Compound 102 (0.23 g, 7.9 mmol) in a solution consisting of Tol/EtOH/2M Na2CO3 aq (15 mL/2 mL/15 mL) was treated with 4-benzloxy phenylboronic acid (0.12 g, 1.0 mmol) and cat Pd(PPh3)4 and heated to reflux until TLC analysis indicated complete reaction. The reaction mixture was treated with 2 N HCl aq and extracted with EtOAc. The EtOAc layer was washed with saturated NaHCO3 aq, brine and dried over MgSO4. After filtration, the residue was chromatographed on silica gel (1:4 EtOAc/hexanes) to yield the desired product as an orange solid. The orange solid thus obtained was triturated with CH2Cl2 to yield the pdt (2.4 g) as a white solid: Mp=186–187° C.; 1H NMR (DMSO-d6) δ 9.90 (br s, 1 H), 9.05 (br s, 1 H), 7.65 (d, 1 H, J=8.5 Hz), 7.51–7.31 (m, 5 H), 7.19 (d, 1 H, J=8.5 Hz), 7.17 (d, 2 H, J=8.6 Hz), 7.02 (d, 2 H, J=8.7 Hz), 6.86 (dd; 1 H, J=8.5 Hz, 2.4 Hz), 6.70 (d, 2 H, J=1.8 Hz), 6.63 (dd, 1 H, J=8.7 Hz, 2.4 Hz), 5.86 (s, 1 H), 5.14 (s, 2 H); MS 407 (M−H)−.

Workup

  1. temperatureheated
  2. temperatureto reflux until TLC analysis
  3. customreaction
  4. extractionextracted with EtOAc
  5. washThe EtOAc layer was washed with saturated NaHCO3 aq, brine
  6. dry with materialdried over MgSO4
  7. filtrationAfter filtration
  8. customthe residue was chromatographed on silica gel (1:4 EtOAc/hexanes)

Sources & evidence

ORD record
ord-4f0589e03c9b42f0a48dbe9ecefedd7a
Source dataset
uspto-grants-2006_04
Patent number
US07022733B2

Reaction notes

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