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Tributylphosphine → methyl 3-(4-{[2'-methyl-4'-(tetrahydro-2H-pyran-2-yloxy)biphenyl-3-yl]methoxy}phenyl)propanoate

HRID 273393
Notes
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Reaction equation

HRID 273393 reaction equation
[OH:1][C:2]1[CH:7]=[CH:6][C:5]([CH2:8][CH2:9][C:10]([O:12][CH3:13])=[O:11])=[CH:4][CH:3]=1.[CH3:14][C:15]1[CH:20]=[C:19]([O:21][CH:22]2[CH2:27][CH2:26][CH2:25][CH2:24][O:23]2)[CH:18]=[CH:17][C:16]=1[C:28]1[CH:33]=[CH:32][CH:31]=[C:30]([CH2:34]O)[CH:29]=1.C(P(CCCC)CCCC)CCC.N(C(N1CCCCC1)=O)=NC(N1CCCCC1)=O>C1(C)C=CC=CC=1.CCCCCC>[CH3:14][C:15]1[CH:20]=[C:19]([O:21][CH:22]2[CH2:27][CH2:26][CH2:25][CH2:24][O:23]2)[CH:18]=[CH:17][C:16]=1[C:28]1[CH:33]=[CH:32][CH:31]=[C:30]([CH2:34][O:1][C:2]2[CH:3]=[CH:4][C:5]([CH2:8][CH2:9][C:10]([O:12][CH3:13])=[O:11])=[CH:6][CH:7]=2)[CH:29]=1
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

7

Reactant 4

HCID 13831TributylphosphineHCID 730421,1'-(Azodicarbonyl)dipiperidineHCID 79706Benzenepropanoic acid, 4-hydroxy-, methyl esterHCID 23111813[2'-methyl-4'-(tetrahydro-2H-pyran-2-yloxy)biphenyl-3-yl]methanol

Product 1

HCID 58903213methyl 3-(4-{[2'-methyl-4'-(tetrahydro-2H-pyran-2-yloxy)biphenyl-3-yl]methoxy}phenyl)propanoate
Yield 83.4%

Reagents, catalysts & solvents 2

HCID 1140TolueneSolventHCID 8058HexaneSolvent

Procedure

A solution of methyl 3-(4-hydroxyphenyl)propanoate (1.43 g, 7.94 mmol), [2′-methyl-4′-(tetrahydro-2H-pyran-2-yloxy)biphenyl-3-yl]methanol (2.37 g, 7.94 mmol) and tributylphosphine (2.97 mL, 11.9 mmol) in toluene (120 mL) was stirred under ice-cooling and 1,1′-(azodicarbonyl)dipiperidine (3.00 g, 11.9 mmol) was added by small portions. The mixture was warmed to room temperature and stirred for 24 hrs. Hexane (60 mL) was added to the reaction mixture and the precipitated insoluble material was filtered off. The filtrate was concentrated under reduced pressure and the residue was purified by silica gel column chromatography (hexane-20% ethyl acetate/hexane) to give the title compound as a colorless oil (3.05 g, yield 83%).

Workup

  1. temperaturecooling
  2. filtrationthe precipitated insoluble material was filtered off
  3. concentrationThe filtrate was concentrated under reduced pressure
  4. customthe residue was purified by silica gel column chromatography (hexane-20% ethyl acetate/hexane)

Sources & evidence

ORD record
ord-ec855496c0b94dd59158db921a416812
Source dataset
uspto-grants-2008_11
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US07456218B2

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes