1,1'-(9,9-Dimethyl-9H-xanthene-4,5-diyl)bis(1,1-diphenylphosphine) → HCID 66834426, compound

HRID 2275279Notes

Reaction equation

HRID 2275279 reaction equation
[CH3:1][O:2][C:3]1[CH:12]=[C:11]2[C:6]([CH2:7][CH2:8][C:9](=[O:15])[C:10]2([CH3:14])[CH3:13])=[CH:5][CH:4]=1.I[C:17]1[C:22]([O:23][CH2:24][C:25]2[CH:30]=[CH:29][C:28]([O:31][CH3:32])=[CH:27][CH:26]=2)=[CH:21][CH:20]=[CH:19][N:18]=1.CC(C)([O-])C.[Na+].CC1(C)C2C(=C(P(C3C=CC=CC=3)C3C=CC=CC=3)C=CC=2)OC2C(P(C3C=CC=CC=3)C3C=CC=CC=3)=CC=CC1=2>C(OCC)(=O)C.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].C1(C)C=CC=CC=1>[CH3:1][O:2][C:3]1[CH:12]=[C:11]2[C:6]([CH2:7][CH:8]([C:17]3[C:22]([O:23][CH2:24][C:25]4[CH:30]=[CH:29][C:28]([O:31][CH3:32])=[CH:27][CH:26]=4)=[CH:21][CH:20]=[CH:19][N:18]=3)[C:9](=[O:15])[C:10]2([CH3:13])[CH3:14])=[CH:5][CH:4]=1

Participants

8

Reactant 4

HCID 6360441,1'-(9,9-Dimethyl-9H-xanthene-4,5-diyl)bis(1,1-diphenylphosphine)HCID 130110077-Methoxy-1,1-dimethyl-3,4-dihydronaphthalen-2(1H)-one2×HCID 23676156Sodium t-butoxideHCID 866638312-Iodo-3-(4-methoxy-benzyloxy)-pyridine

Product 1

HCID 66834426HCID 66834426, compoundYield 44.1%

Reagents, catalysts & solvents 3

HCID 9811564Bis(dibenzylideneacetone)palladiumCatalystHCID 1140TolueneSolventHCID 8857Ethyl AcetateSolvent

Conditions

Temperature
80 °C

Procedure

Toluene (0.5 ml) was added to 7-methoxy-1,1-dimethyl-3,4-dihydro-1H-naphthalen-2-one (Compound A2, 36 mg), 2-iodo-3-(4-methoxy-benzyloxy)-pyridine (Compound GT15-1, 50 mg), sodium t-butoxide (35.3 mg), Pd2dba3 (13.5 mg) and Xantphos (17 mg), and the mixture was stirred and heated at 80° C. for 2.5 hrs under nitrogen atmosphere. After cooling, the reaction mixture was diluted with ethyl acetate and subjected to Celite filtration. The organic layer was washed with saturated aqueous solution of sodium bicarbonate and saturated brine, and then concentrated under reduced pressure. The resulting residues were purified by silica gel column (ethyl acetate/hexane) to obtain the title compound (27 mg, 44%).

Workup

  1. temperatureAfter cooling
  2. filtrationsubjected to Celite filtration
  3. washThe organic layer was washed with saturated aqueous solution of sodium bicarbonate and saturated brine
  4. concentrationconcentrated under reduced pressure
  5. customThe resulting residues were purified by silica gel column (ethyl acetate/hexane)

Sources & evidence

ORD record
ord-e32e24a2f9914bc29ddab577b6852352
Source dataset
uspto-grants-2015_09
Patent number
US09126931B2

Reaction notes

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