Triphenylphosphine → ethyl 3-(4-{[2',6'-dimethyl-4'-(tetrahydro-2H-thiopyran-4-yloxy)biphenyl-3-yl]methoxy}-2-fluorophenyl)propanoate

HRID 273422

反応式

HRID 273422 の反応式
[F:1][C:2]1[CH:7]=[C:6]([O:8][CH2:9][C:10]2[CH:11]=[C:12]([C:16]3[C:21]([CH3:22])=[CH:20][C:19]([OH:23])=[CH:18][C:17]=3[CH3:24])[CH:13]=[CH:14][CH:15]=2)[CH:5]=[CH:4][C:3]=1[CH2:25][CH2:26][C:27]([O:29][CH2:30][CH3:31])=[O:28].[S:32]1[CH2:37][CH2:36][CH:35](O)[CH2:34][CH2:33]1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.N(C(OCC)=O)=NC(OCC)=O>O1CCCC1>[CH3:22][C:21]1[CH:20]=[C:19]([O:23][CH:35]2[CH2:36][CH2:37][S:32][CH2:33][CH2:34]2)[CH:18]=[C:17]([CH3:24])[C:16]=1[C:12]1[CH:13]=[CH:14][CH:15]=[C:10]([CH2:9][O:8][C:6]2[CH:5]=[CH:4][C:3]([CH2:25][CH2:26][C:27]([O:29][CH2:30][CH3:31])=[O:28])=[C:2]([F:1])[CH:7]=2)[CH:11]=1

参加物

6

反応物 4

HCID 11776Triphenylphosphine2 回HCID 220568ethyl N-ethoxycarbonyliminocarbamate2 回HCID 576296Tetrahydro-2H-thiopyran-4-ol2 回HCID 58903128Ethyl 3-{2-fluoro-4-[(4'-hydroxy-2',6'-dimethylbiphenyl-3-yl)methoxy]phenyl}propanoate

生成物 1

HCID 58903212ethyl 3-(4-{[2',6'-dimethyl-4'-(tetrahydro-2H-thiopyran-4-yloxy)biphenyl-3-yl]methoxy}-2-fluorophenyl)propanoate収率 91%

試薬・触媒・溶媒 1

HCID 8028Tetrahydrofuran溶媒

実験手順

To a solution of ethyl 3-{2-fluoro-4-[(4′-hydroxy-2′,6′-dimethylbiphenyl-3-yl)methoxy]phenyl}propanoate (0.50 g, 1.18 mmol), tetrahydro-2H-thiopyran-4-ol (0.15 g, 1.30 mmol) and triphenylphosphine (0.31 g, 1.30 mmol) in tetrahydrofuran (10 mL) was added diethyl azodicarboxylate (40% toluene solution, 0.70 mL, 1.53 mmol) at room temperature with stirring. The reaction mixture was stirred at room temperature for 19 hrs., and an equivalent amount of the aforementioned reagents (tetrahydro-2H-thiopyran-4-ol, triphenylphosphine and diethyl azodicarboxylate) were added. The mixture was further stirred at the same temperature for 6 hrs. The reaction mixture was concentrated under reduced pressure, and the residue was purified by silica gel column chromatography (hexane/ethyl acetate=10/1-hexane/ethyl acetate=3/1) to give the title compound (0.53 g, yield 91%) as a yellow oil.

後処理

  1. stirringThe reaction mixture was stirred at room temperature for 19 hrs
  2. stirringThe mixture was further stirred at the same temperature for 6 hrs
  3. concentrationThe reaction mixture was concentrated under reduced pressure
  4. customthe residue was purified by silica gel column chromatography (hexane/ethyl acetate=10/1-hexane/ethyl acetate=3/1)

出典と根拠

ORDレコード
ord-ad2800bd3659447dbd57b476f3d4122d
出典データセット
uspto-grants-2008_11
特許番号
US07456218B2

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