Morpholine → HCID 178515015, compound

HRID 525282Notes

Reaction equation

HRID 525282 reaction equation
Br[C:2]1[CH:11]=[C:10]2[C:5]([N:6]=[CH:7][CH:8]=[N:9]2)=[C:4]([O:12][CH:13]2[CH2:18][CH2:17][CH:16]([N:19]3[C:27](=[O:28])[C:26]4[C:21](=[CH:22][CH:23]=[CH:24][CH:25]=4)[C:20]3=[O:29])[CH2:15][CH2:14]2)[CH:3]=1.[NH:30]1[CH2:35][CH2:34][O:33][CH2:32][CH2:31]1.C([O-])([O-])=O.[Cs+].[Cs+].C1C=CC(P(C2C(C3C(P(C4C=CC=CC=4)C4C=CC=CC=4)=CC=C4C=3C=CC=C4)=C3C(C=CC=C3)=CC=2)C2C=CC=CC=2)=CC=1>C1(C)C=CC=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.[Pd].[Pd]>[O:33]1[CH2:34][CH2:35][N:30]([C:2]2[CH:11]=[C:10]3[C:5]([N:6]=[CH:7][CH:8]=[N:9]3)=[C:4]([O:12][C@@H:13]3[CH2:18][CH2:17][C@H:16]([N:19]4[C:27](=[O:28])[C:26]5[C:21](=[CH:22][CH:23]=[CH:24][CH:25]=5)[C:20]4=[O:29])[CH2:15][CH2:14]3)[CH:3]=2)[CH2:31][CH2:32]1

Participants

7

Reactant 4

HCID 8083MorpholineHCID 10796Cesium carbonateHCID 634876Binap, (A+-)-HCID 90411339HCID 90411339, compound

Product 1

HCID 178515015HCID 178515015, compoundYield 74.2%

Reagents, catalysts & solvents 2

HCID 9811564Bis(dibenzylideneacetone)palladiumCatalystHCID 1140TolueneSolvent

Conditions

Temperature
110 °C

Procedure

As shown in step 9-ii of Scheme 9, In a round bottom flask fitted with a condenser, a mixture of 2-[4-(7-bromoquinoxalin-5-yl)oxycyclohexyl]isoindoline-1,3-dione (6.2 g, 12.34 mmol), morpholine (1.61 g, 1.62 mL, 18.5 mmol), and Cs2CO3 (12.06 g, 37.0 mmol) in anhydrous toluene (73 mL) was treated with rac-BINAP (768.4 mg, 1.234 mmol) and Pd2(dba)3 (565 mg, 0.617 mmol). The reaction mixture was heated at 110° C. for 18 hours. After cooling to room temperature, the mixture was filtered through diatomaceous earth and concentrated under reduced pressure. The residue was triturated with Et2O and the solids collected by filtration and washed with Et2O to produce 2-((cis)-4-((7-morpholinoquinoxalin-5-yl)oxy)cyclohexyl)isoindoline-1,3-dione (compound 1029, 4.2 g) as yellow solid. The filterate was concentrated under reduced pressure and purified by medium pressure silica gel chromatography (0-100% EtOAc/hexanes gradient) to produce an additional 300 mg of compound 1029: 1H-NMR (300 MHz, CDCl3) δ 8.76-8.63 (m, 2H), 7.85 (dd, J=5.4, 3.1 Hz, 2H), 7.79-7.60 (m, 2H), 7.09 (d, J=2.6 Hz, 1H), 6.99 (d, J=2.5 Hz, 1H), 5.06 (t, J=2.8 Hz, 1H), 4.27 (tt, J=12.3, 3.8 Hz, 1H), 4.02-3.85 (m, 4H), 3.49-3.27 (m, 4H), 3.03-2.75 (m, 2H), 2.37 (d, J=14.0 Hz, 2H), 1.83-1.56 (m, 4H).

Workup

  1. customAs shown in step 9-ii of Scheme 9, In a round bottom flask
  2. customfitted with a condenser
  3. temperatureAfter cooling to room temperature
  4. filtrationthe mixture was filtered through diatomaceous earth
  5. concentrationconcentrated under reduced pressure
  6. customThe residue was triturated with Et2O
  7. filtrationthe solids collected by filtration
  8. washwashed with Et2O

Sources & evidence

ORD record
ord-e90060915148432ba158cc3918f77517
Source dataset
uspto-grants-2016_05
Patent number
US09340557B2

Reaction notes

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