Triphenylphosphine → 4-(4-Bromo-3,5-dimethylphenoxy)thiane

HRID 15625

反応式

HRID 15625 の反応式
[Br:1][C:2]1[C:7]([CH3:8])=[CH:6][C:5]([OH:9])=[CH:4][C:3]=1[CH3:10].[S:11]1[CH2:16][CH2:15][CH:14](O)[CH2:13][CH2:12]1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.N(C(OCC)=O)=NC(OCC)=O>O1CCCC1>[Br:1][C:2]1[C:7]([CH3:8])=[CH:6][C:5]([O:9][CH:14]2[CH2:15][CH2:16][S:11][CH2:12][CH2:13]2)=[CH:4][C:3]=1[CH3:10]

参加物

6

反応物 4

HCID 11776Triphenylphosphine2 回HCID 819704-Bromo-3,5-dimethylphenolHCID 220568ethyl N-ethoxycarbonyliminocarbamate2 回HCID 576296Tetrahydro-2H-thiopyran-4-ol2 回

生成物 1

HCID 593425534-(4-Bromo-3,5-dimethylphenoxy)thiane収率 86.6%

試薬・触媒・溶媒 1

HCID 8028Tetrahydrofuran溶媒

実験手順

To a solution of 4-bromo-3,5-dimethylphenol (0.201 g, 1.00 mmol), tetrahydro-2H-thiopyran-4-ol (0.130 g, 1.10 mmol) and triphenylphosphine (0.341 g, 1.30 mmol) in tetrahydrofuran (5 mL) was added diethyl azodicarboxylate (40% solution in toluene, 0.591 mL, 1.30 mmol), and the mixture was stirred at room temperature for 1.5 hr. Tetrahydro-2H-thiopyran-4-ol (0.0591 g, 0.500 mmol), triphenylphosphine (0.157 g, 0.600 mmol) and diethyl azodicarboxylate (40% solution in toluene, 0.272 mL, 0.600 mmol) were added, and the mixture was further stirred for 1.5 hr. The reaction mixture was concentrated under reduced pressure, and the residue was purified by silica gel column chromatography (ethyl acetate:hexane=0:100-20:80) to give the title compound (0.261 g, yield 86%) as colorless crystals.

後処理

  1. stirringthe mixture was further stirred for 1.5 hr
  2. concentrationThe reaction mixture was concentrated under reduced pressure
  3. customthe residue was purified by silica gel column chromatography (ethyl acetate:hexane=0:100-20:80)

出典と根拠

ORDレコード
ord-f048dd03d4064e58a82769102e031e02
出典データセット
uspto-grants-2010_06
特許番号
US07732626B2

関連ノート

読み込み中…