Dichloromethane → 4-(4'-Difluoromethoxy-biphenyl-4-ylsulphanylmethyl)-5-methyl-furan-2-carboxylic acid methyl ester

HRID 2266849ノート

反応式

HRID 2266849 の反応式
ClCCl.[CH3:4][O:5][C:6]([C:8]1[O:9][C:10]([CH3:30])=[C:11]([CH2:13][S:14][C:15]2[CH:20]=[CH:19][C:18](B3OC(C)(C)C(C)(C)O3)=[CH:17][CH:16]=2)[CH:12]=1)=[O:7].[F:31][CH:32]([F:41])[O:33][C:34]1[CH:39]=[CH:38][C:37](I)=[CH:36][CH:35]=1.C(=O)([O-])[O-].[Cs+].[Cs+]>O1CCOCC1>[CH3:4][O:5][C:6]([C:8]1[O:9][C:10]([CH3:30])=[C:11]([CH2:13][S:14][C:15]2[CH:16]=[CH:17][C:18]([C:37]3[CH:38]=[CH:39][C:34]([O:33][CH:32]([F:41])[F:31])=[CH:35][CH:36]=3)=[CH:19][CH:20]=2)[CH:12]=1)=[O:7]

参加物

6

反応物 4

HCID 6344DichloromethaneHCID 10796Cesium carbonateHCID 27370081-(Difluoromethoxy)-4-iodobenzeneHCID 588241845-Methyl-4-[4-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-phenylsulphanylmethyl]-furan-2-carboxylic acid methyl ester

生成物 1

HCID 588241974-(4'-Difluoromethoxy-biphenyl-4-ylsulphanylmethyl)-5-methyl-furan-2-carboxylic acid methyl ester収率 60.5%

試薬・触媒・溶媒 1

HCID 312751,4-Dioxane溶媒

反応条件

温度
100 °C

実験手順

[1,1′-Bis(diphenylphosphino) ferrocene]dichloropalladium(II) complex with dichloromethane (1:1) (12.8 mg) was added to a degassed mixture of 5-methyl-4-[4-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-phenylsulphanylmethyl]-furan-2-carboxylic acid methyl ester (151) (200 mg, 0.515 mmoles), 1-difluoromethoxy-4-iodo-benzene (153 mg, 0.568 mmoles) and 2M aqueous cesium carbonate (4.12 ml) in 1,4-dioxan (15 ml). The mixture was placed under an argon atmosphere and was heated at 100° C. for 20 hours. After cooling, the mixture was concentrated and the residue was partitioned between ethyl acetate and water, and the mixture adjusted to pH=2 with 1M aqueous hydrochloric acid. The organic phase was washed with brine and dried. After evaporation of the solvent, the residue was purified by flash chromatography, using heptane/ethyl acetate 9:1 v/v as eluent, to afford compound 152 (126 mg) as a white solid. LC/MS System A; Rt=4.17 mins.

後処理

  1. temperatureAfter cooling
  2. concentrationthe mixture was concentrated
  3. customthe residue was partitioned between ethyl acetate and water
  4. washThe organic phase was washed with brine
  5. customdried
  6. customAfter evaporation of the solvent
  7. customthe residue was purified by flash chromatography

出典と根拠

ORDレコード
ord-3bd83c254f52442d9d4911b6cf0ccf25
出典データセット
uspto-grants-2010_12
特許番号
US07858644B2

反応ノート

読み込み中…