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2-Dicyclohexylphosphino-2',6'-dimethoxybiphenyl → 7-Methoxy-3-(3-methoxymethoxy-pyridin-4-yl)-1,1-dimethyl-3,4-dihydro-1H-naphthalen-2-one

HRID 61906
Notes
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Reaction equation

HRID 61906 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[CH:22]=[CH:21][N:20]=[CH:19][C:18]=1[O:23][CH2:24][O:25][CH3:26].CC(C)([O-])C.[Na+].COC1C=CC=C(OC)C=1C1C=CC=CC=1P(C1CCCCC1)C1CCCCC1>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[CH:22]=[CH:21][N:20]=[CH:19][C:18]=3[O:23][CH2:24][O:25][CH3:26])[C:9](=[O:15])[C:10]2([CH3:13])[CH3:14])=[CH:5][CH:4]=1
ParticipantsConditionsProcedureWorkupSources & evidenceReaction notes

Participants

8

Reactant 4

HCID 112698722-Dicyclohexylphosphino-2',6'-dimethoxybiphenylHCID 129558244-Iodo-3-(methoxymethoxy)pyridineHCID 130110077-Methoxy-1,1-dimethyl-3,4-dihydronaphthalen-2(1H)-one2×HCID 23676156Sodium t-butoxide

Product 1

HCID 668351667-Methoxy-3-(3-methoxymethoxy-pyridin-4-yl)-1,1-dimethyl-3,4-dihydro-1H-naphthalen-2-one
Yield 47.4%

Reagents, catalysts & solvents 3

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

Conditions

Temperature
70 °C

Procedure

To 7-methoxy-1,1-dimethyl-3,4-dihydro-1H-naphthalen-2-one (Compound A2, 924 mg), 4-iodo-3-methoxymethoxy-pyridine (1 g), sodium t-butoxide (906 mg), Pd2dba3 (173 mg) and S-Phos (185 mg), toluene (19 ml) was added, and the mixture was stirred and heated at 70° C. for 2 hrs under nitrogen atmosphere. The reaction mixture was diluted with ethyl acetate and filtered through Celite. 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 (610 mg, 47%).

Workup

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

Sources & evidence

ORD record
ord-b30c707f7e7b49c6a6252d91c6a15ff3
Source dataset
uspto-grants-2016_09
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US09440922B2

Reaction notes

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On this pageParticipantsConditionsProcedureWorkupSources & evidenceReaction notes