Tributylphosphine → HCID 89768806, compound

HRID 591570Notes

Reaction equation

HRID 591570 reaction equation
C(P(CCCC)CCCC)CCC.[CH3:14][O:15][C:16](=[O:30])[CH2:17][C:18]1[C:22]2[C:23]([Cl:28])=[CH:24][C:25]([OH:27])=[CH:26][C:21]=2[S:20][C:19]=1[CH3:29].[CH3:31][N:32]1[C:36]([CH2:37]O)=[CH:35][C:34]([C:39]([F:42])([F:41])[F:40])=[N:33]1.C1CCN(C(N=NC(N2CCCCC2)=O)=O)CC1>C1COCC1>[CH3:14][O:15][C:16](=[O:30])[CH2:17][C:18]1[C:22]2[C:23]([Cl:28])=[CH:24][C:25]([O:27][CH2:37][C:36]3[N:32]([CH3:31])[N:33]=[C:34]([C:39]([F:42])([F:40])[F:41])[CH:35]=3)=[CH:26][C:21]=2[S:20][C:19]=1[CH3:29]

Participants

6

Reactant 4

HCID 13831TributylphosphineHCID 730421,1'-(Azodicarbonyl)dipiperidineHCID 58456726(1-Methyl-3-(trifluoromethyl)-1H-pyrazol-5-yl)methanolHCID 131734536HCID 131734536, compound

Product 1

HCID 89768806HCID 89768806, compoundYield 90.9%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Procedure

To a mixture of tri-n-butylphosphine (0.415 mL), methyl(4-chloro-6-hydroxy-2-methyl-1-benzothiophen-3-yl)acetate (150 mg) and (1-methyl-3-(trifluoromethyl)-1H-pyrazol-5-yl)methanol (105 mg) in THF (4.0 mL) was added ADDP (419 mg) at room temperature. The mixture was stirred at room temperature under nitrogen atmosphere for 1 h. The mixture was concentrated. To the residue was added IPE and the precipitate was filtered off and the filtrate was concentrated in vacuo. The residue was purified by silica gel column chromatography (NH, EtOAc/hexane) and silica gel column chromatography (EtOAc/hexane) to give the title compound (218 mg) as a colorless solid. The solid was crystallized from EtOAc-hexane.

Workup

  1. concentrationThe mixture was concentrated
  2. additionTo the residue was added IPE
  3. filtrationthe precipitate was filtered off
  4. concentrationthe filtrate was concentrated in vacuo
  5. customThe residue was purified by silica gel column chromatography (NH, EtOAc/hexane) and silica gel column chromatography (EtOAc/hexane)

Sources & evidence

ORD record
ord-eedfa38b1bed4868b8ad2d1d3972132a
Source dataset
uspto-grants-2016_01
Patent number
US09238639B2

Reaction notes

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