4-Methylbenzenethiol → HCID 66736270, compound

HRID 1641576Notes

Reaction equation

HRID 1641576 reaction equation
Br[C:2]1[CH:7]=[CH:6][C:5]([C:8]2[CH:13]=[CH:12][C:11]([CH2:14][CH2:15][C:16]3([CH2:22][O:23][P:24]([C:30]([CH3:33])([CH3:32])[CH3:31])([C:26]([CH3:29])([CH3:28])[CH3:27])=[O:25])[CH2:20][O:19][C:18]([CH3:21])=[N:17]3)=[CH:10][CH:9]=2)=[C:4]([F:34])[CH:3]=1.[CH3:35][C:36]1[CH:41]=[CH:40][C:39]([SH:42])=[CH:38][CH:37]=1.C(N(C(C)C)CC)(C)C.C1(P(C2C=CC=CC=2)C2C3OC4C(=CC=CC=4P(C4C=CC=CC=4)C4C=CC=CC=4)C(C)(C)C=3C=CC=2)C=CC=CC=1>O1CCOCC1.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.C(Cl)(Cl)Cl.[Pd].[Pd].O>[F:34][C:4]1[CH:3]=[C:2]([S:42][C:39]2[CH:40]=[CH:41][C:36]([CH3:35])=[CH:37][CH:38]=2)[CH:7]=[CH:6][C:5]=1[C:8]1[CH:13]=[CH:12][C:11]([CH2:14][CH2:15][C:16]2([CH2:22][O:23][P:24]([C:30]([CH3:33])([CH3:32])[CH3:31])([C:26]([CH3:29])([CH3:28])[CH3:27])=[O:25])[CH2:20][O:19][C:18]([CH3:21])=[N:17]2)=[CH:10][CH:9]=1

Participants

8

Reactant 4

HCID 78114-MethylbenzenethiolHCID 81531DiisopropylethylamineHCID 6360441,1'-(9,9-Dimethyl-9H-xanthene-4,5-diyl)bis(1,1-diphenylphosphine)HCID 66736357HCID 66736357, compound

Product 1

HCID 66736270HCID 66736270, compoundYield 53.9%

Reagents, catalysts & solvents 3

HCID 11029508Palladium, tris[mu-[(1,2-eta:4,5-eta)-(1E,4E)-1,5-diphenyl-1,4-pentadien-3-one]]di-, compd. with trichloromethane (1:1)CatalystHCID 962WaterSolventHCID 312751,4-DioxaneSolvent

Procedure

A solution of 4-[2-(4′-bromo-2′-fluorobiphenyl-4-yl)ethyl]-4-di(tert-butyl)phosphoryloxymethyl-2-methyl-2-oxazoline (210 mg) of Example 23, (23-2), 4-methylbenzenethiol (49 mg), diisopropylethylamine (93 mg), tris(dibenzylideneacetone)dipalladium(0) chloroform adduct (18.6 mg) and 4,5-bis(diphenylphosphino)-9,9-dimethylxanthene (Xantphos) (21.4 mg) in 1,4-dioxane (2 mL) was heated under reflux for 9 hr under a nitrogen atmosphere. Water was added to the reaction mixture, and the mixture was extracted with ethyl acetate. The extract was washed with saturated brine, and dried over anhydrous sodium sulfate. The solvent was evaporated under reduced pressure, and the residue was purified by silica gel column chromatography to give the title compound (122 mg) as a pale-yellow oil.

Workup

  1. temperatureunder reflux for 9 hr under a nitrogen atmosphere
  2. extractionthe mixture was extracted with ethyl acetate
  3. washThe extract was washed with saturated brine
  4. dry with materialdried over anhydrous sodium sulfate
  5. customThe solvent was evaporated under reduced pressure
  6. customthe residue was purified by silica gel column chromatography

Sources & evidence

ORD record
ord-a89ef6da43be49ba8c0af48b9650dec3
Source dataset
uspto-grants-2012_02
Patent number
US08114902B2

Reaction notes

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