Sodium Carbonate → HCID 59354789, compound

HRID 1425831Notes

Reaction equation

HRID 1425831 reaction equation
FC(F)(F)S(O[C:7]1[C:11]2([CH2:13][CH2:12]2)[O:10][C:9](=[O:14])[C:8]=1[C:15]1[CH:20]=[CH:19][C:18]([O:21][CH2:22][C:23]2[CH:32]=[CH:31][C:30]3[C:25](=[CH:26][CH:27]=[CH:28][CH:29]=3)[N:24]=2)=[CH:17][CH:16]=1)(=O)=O.[N:35]1[CH:40]=[CH:39][C:38](B(O)O)=[CH:37][CH:36]=1.C([O-])([O-])=O.[Na+].[Na+]>O1CCOCC1.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>[N:35]1[CH:40]=[CH:39][C:38]([C:7]2[C:11]3([CH2:12][CH2:13]3)[O:10][C:9](=[O:14])[C:8]=2[C:15]2[CH:20]=[CH:19][C:18]([O:21][CH2:22][C:23]3[CH:32]=[CH:31][C:30]4[C:25](=[CH:26][CH:27]=[CH:28][CH:29]=4)[N:24]=3)=[CH:17][CH:16]=2)=[CH:37][CH:36]=1

Participants

7

Reactant 3

HCID 10340Sodium CarbonateHCID 2734379(Pyridin-4-yl)boronic acidHCID 59354834HCID 59354834, compound

Product 1

HCID 59354789HCID 59354789, compoundYield 18%

Reagents, catalysts & solvents 3

HCID 178418397HCID 178418397, compoundCatalystHCID 962WaterSolvent2×HCID 312751,4-DioxaneSolvent

Procedure

To a room temperature, stirred solution of 5-oxo-6-(4-(quinolin-2-ylmethoxy)phenyl)-4-oxaspiro[2.4]hept-6-en-7-yl trifluoromethanesulfonate (200 mg, 0.4 mmol) in 1,4-dioxane (10 mL) were added pyridin-4-ylboronic acid (74 mg, 0.6 mmol), Na2CO3 (102 mg, 1.2 mmol) and water (4 mL) under an inert atmosphere. The mixture was stirred for 30 minutes and then Pd(PPh3)4 (46 mg, 0.04 mmol) was added and the mixture refluxed for 16 h. The reaction mixture was then diluted with water and extracted with EtOAc (2×40 mL). The combined organic layers were washed with water, brine, dried over Na2SO4 and concentrated in vacuo to afford 7-(pyridin-4-yl)-6-(4-(quinolin-2-ylmethoxy)phenyl)-4-oxaspiro[2.4]hept-6-en-5-one (30 mg, 18%) as a white solid. 1H NMR (500 MHz, d6-DMSO): δ 8.64-8.61 (m, 2H), 8.40 (d, J=7.2 Hz, 1H), 8.02-7.99 (m, 2H), 7.81-7.77 (m, 1H), 7.67-7.51 (m, 3H), 7.38-7.24 (m, 5H), 5.36 (s, 2H), 1.88-1.85 (m, 2H), 1.24-1.21 (m, 2H). MS: M+H: m/z=421.2; M+Na: m/z=443.2. HPLC: 92%, (Condition-I).

Workup

  1. temperaturethe mixture refluxed for 16 h
  2. extractionextracted with EtOAc (2×40 mL)
  3. washThe combined organic layers were washed with water, brine
  4. dry with materialdried over Na2SO4
  5. concentrationconcentrated in vacuo

Sources & evidence

ORD record
ord-d8563502dd664661a38b77004395a124
Source dataset
uspto-grants-2015_01
Patent number
US08933074B2

Reaction notes

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