Cesium carbonate → HCID 58109453, compound

HRID 2037525Notes

Reaction equation

HRID 2037525 reaction equation
[CH2:1]([C@@:4]1([C:20]2[CH:25]=[CH:24][CH:23]=[CH:22][C:21]=2[F:26])[O:9][C:8](=[O:10])[N:7]([C@H:11]([C:13]2[CH:18]=[CH:17][C:16](Br)=[CH:15][CH:14]=2)[CH3:12])[CH2:6][CH2:5]1)[CH:2]=[CH2:3].[F:27][C:28]1[CH:33]=[CH:32][C:31](B(O)O)=[CH:30][CH:29]=1.C([O-])([O-])=O.[Cs+].[Cs+]>O1CCOCC1.Cl[Pd](Cl)([P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1)[P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1>[CH2:1]([C@@:4]1([C:20]2[CH:25]=[CH:24][CH:23]=[CH:22][C:21]=2[F:26])[O:9][C:8](=[O:10])[N:7]([C@H:11]([C:13]2[CH:18]=[CH:17][C:16]([C:31]3[CH:32]=[CH:33][C:28]([F:27])=[CH:29][CH:30]=3)=[CH:15][CH:14]=2)[CH3:12])[CH2:6][CH2:5]1)[CH:2]=[CH2:3]

Participants

6

Reactant 3

HCID 10796Cesium carbonateHCID 2856454-Fluorophenylboronic acidHCID 58109194HCID 58109194, compound

Product 1

HCID 58109453HCID 58109453, compoundYield 80%

Reagents, catalysts & solvents 2

HCID 178418476HCID 178418476, compoundCatalystHCID 312751,4-DioxaneSolvent

Procedure

A mixture of (R)-6-allyl-3-((S)-1-(4-bromophenyl)ethyl)-6-(2-fluorophenyl)-1,3-oxazinan-2-one (100 mg, 0.24 mmol) and 4-fluorophenylboronic acid (55 mg, 0.36 mmol), Pd(Ph3P)2Cl2 (20 mg), and aq Cs2CO3 solution (0.5 mL, 2 M) in 1,4-dioxane (10 mL) was stirred and heated to reflux for 2 h. The organic phase was separated, and concentrated to give the crude product, which was purified by preparative TLC to give (R)-6-allyl-3-((S)-1-(4′-fluorobiphenyl-4-yl)ethyl)-6-(2-fluorophenyl)-1,3-oxazinan-2-one (80 mg, 80%). 1H NMR (CDCl3): δ=1.49 (m, 3H), 2.13 (m, 1H), 2.32 (m, 1H), 2.50 (m, 1H), 2.69 (m, 2H), 2.89 (m, 1H), 5.00 (m, 2H), 5.75 (m, 2H), 6.91-7.10 (m, 6H), 7.15 (m, 1H), 7.22 (m, 2H), 7.38 (m, 2H), 7.48 (m, 1H).

Workup

  1. temperatureheated
  2. temperatureto reflux for 2 h
  3. customThe organic phase was separated
  4. concentrationconcentrated
  5. customto give the crude product, which
  6. customwas purified by preparative TLC

Sources & evidence

ORD record
ord-e87440ba9bb24334b4d83c8fd68deb5d
Source dataset
uspto-grants-2013_11
Patent number
US08575156B2

Reaction notes

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