Sodium Carbonate → 7-[(1e)-3,3-Diethoxy-1-propenyl]-3-(4-phenoxyphenyl)thieno[3,2-c]pyridin-4-amine

HRID 2390650Notes

Reaction equation

HRID 2390650 reaction equation
Br[C:2]1[C:6]2[C:7]([NH2:20])=[N:8][CH:9]=[C:10](/[CH:11]=[CH:12]/[CH:13]([O:17][CH2:18][CH3:19])[O:14][CH2:15][CH3:16])[C:5]=2[S:4][CH:3]=1.[O:21]([C:28]1[CH:33]=[CH:32][C:31](B(O)O)=[CH:30][CH:29]=1)[C:22]1[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=1.C(=O)([O-])[O-].[Na+].[Na+]>COCCOC.O.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>[CH2:15]([O:14][CH:13]([O:17][CH2:18][CH3:19])/[CH:12]=[CH:11]/[C:10]1[C:5]2[S:4][CH:3]=[C:2]([C:31]3[CH:32]=[CH:33][C:28]([O:21][C:22]4[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=4)=[CH:29][CH:30]=3)[C:6]=2[C:7]([NH2:20])=[N:8][CH:9]=1)[CH3:16]

Participants

7

Reactant 3

HCID 10340Sodium CarbonateHCID 27343774-Phenoxyphenylboronic acidHCID 184507743-Bromo-7-[(1e)-3,3-diethoxy-1-propenyl]thieno[3,2-c]pyridin-4-amine

Product 1

HCID 184508607-[(1e)-3,3-Diethoxy-1-propenyl]-3-(4-phenoxyphenyl)thieno[3,2-c]pyridin-4-amineYield 55%

Reagents, catalysts & solvents 3

HCID 178418397HCID 178418397, compoundCatalystHCID 962WaterSolventHCID 80711,2-DimethoxyethaneSolvent

Procedure

A mixture of Example 176A (250 mg, 0.70 mmol), 4-phenoxyphenylboronic acid (180 mg, 0.84 mmol), Pd(PPh3)4 (50 mg, 0.04 mmol), and sodium carbonate (150 mg, 1.4 mmol) in 1,2-dimethoxyethane (8 mL) and water (4 mL) was heated to reflux for 15 hours. The mixture was cooled to room temperature and concentrated under reduced pressure. The mixture was extracted with dichloromethane and the extract was dried (MgSO4), filtered, and concentrated. The residue was purified by flash column chromatography on silica gel to provide the desired product (170 mg, 55%). 1H NMR (DMSO-d6, 400 MHz) δ 8.00 (s, 1H), 7.56 (s, 1H), 7.47 (m, 4H), 7.20 (t, 1H), 7.13 (m, 4H), 6.81 (d, 1H), 6.17 (dd, 1H), 5.67 (br s, 2H), 5.13 (d, 1H), 3.57 (m, 4H), 1.18 (t, 6H); MS m/e 447.3 (M+H)+.

Workup

  1. temperatureto reflux for 15 hours
  2. concentrationconcentrated under reduced pressure
  3. extractionThe mixture was extracted with dichloromethane
  4. dry with materialthe extract was dried (MgSO4)
  5. filtrationfiltered
  6. concentrationconcentrated
  7. customThe residue was purified by flash column chromatography on silica gel

Sources & evidence

ORD record
ord-982dd4dc1f564a559722b2358d7d8c8f
Source dataset
uspto-grants-2012_09
Patent number
US08273736B2

Reaction notes

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