Diisopropylethylamine → N-(1-(4-Ethynylphenyl)propan-2-yl)cyclopropanecarboxamide

HRID 76167ノート

反応式

HRID 76167 の反応式
I[C:2]1[CH:7]=[CH:6][C:5]([CH2:8][CH:9]([NH:11][C:12]([CH:14]2[CH2:16][CH2:15]2)=[O:13])[CH3:10])=[CH:4][CH:3]=1.[Si](C#C)([C:20](C)(C)[CH3:21])(C)C.CCN(C(C)C)C(C)C.CCCC[N+](CCCC)(CCCC)CCCC.[F-]>C1COCC1.O.C(Cl)Cl.Cl[Pd](Cl)([P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1)[P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1.[Cu]I>[C:20]([C:2]1[CH:7]=[CH:6][C:5]([CH2:8][CH:9]([NH:11][C:12]([CH:14]2[CH2:16][CH2:15]2)=[O:13])[CH3:10])=[CH:4][CH:3]=1)#[CH:21]

参加物

10

反応物 4

HCID 81531DiisopropylethylamineHCID 2724141Tetrabutylammonium FluorideHCID 2757281(tert-Butyldimethylsilyl)acetyleneHCID 66610754N-(1-(4-Iodophenyl)propan-2-YL)cyclopropanecarboxamide

生成物 1

HCID 86669619N-(1-(4-Ethynylphenyl)propan-2-yl)cyclopropanecarboxamide

試薬・触媒・溶媒 5

HCID 24350Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)触媒HCID 178418476HCID 178418476、化合物触媒HCID 962Water溶媒2 回HCID 6344Dichloromethane溶媒HCID 8028Tetrahydrofuran溶媒

実験手順

To 900 mg (2.73 mmol) N-(1-(4-iodophenyl)propan-2-yl)cyclopropanecarboxamide (I52.3) and 0.56 mL (3.01 mmol) (tert-butyldimethylsilyl)acetylene in 5 mL THF at 0° C. are added 0.77 mL (5.48 mmol) DIPEA, 96.1 mg (0.14 mmol) bis(triphenyl-phosphine)dichloropalladium and 53.1 mg (0.28 mmol) CuI, and the reaction mixture is stirred at r.t. over night. The mixture is diluted with water and extracted with DCM (2×). The organic layer is dried with Na2SO4 and the solvent is removed in vacuo. The residue is purified by column chromatography (silica gel, DCM/MeOH 98/2) to yield the silylated compound. To this substance in DCM are added 949 mg (3.01 mmol) TBAF*3H2O and the mixture is stirred at r.t. for 3 h. The mixture is diluted with water and extracted with DCM. The organic layer is dried with Na2SO4 and the solvent is removed in vacuo. The crude product is purified by column chromatography (silica gel, DCM/MeOH 98/2).

後処理

  1. extractionextracted with DCM (2×)
  2. dry with materialThe organic layer is dried with Na2SO4
  3. customthe solvent is removed in vacuo
  4. customThe residue is purified by column chromatography (silica gel, DCM/MeOH 98/2)
  5. customto yield the silylated compound
  6. stirringthe mixture is stirred at r.t. for 3 h
  7. extractionextracted with DCM
  8. dry with materialThe organic layer is dried with Na2SO4
  9. customthe solvent is removed in vacuo
  10. customThe crude product is purified by column chromatography (silica gel, DCM/MeOH 98/2)

出典と根拠

ORDレコード
ord-a3d7f4c8de484fc5aaa3b341922fd5d0
出典データセット
uspto-grants-2014_09
特許番号
US08835472B2

反応ノート

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