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1,2-Dimethoxyethane → 4-(5-Fluoro-2-methoxyphenyl)-3,6-dihydro-2H-pyridine-1-carboxylic acid t-butyl ester

HRID 2218906
ノート
印刷プレビュー

反応式

HRID 2218906 の反応式
[F:1][C:2]1[CH:3]=[CH:4][C:5]([O:11][CH3:12])=[C:6](B(O)O)[CH:7]=1.[C:13]([O:17][C:18]([N:20]1[CH2:25][CH:24]=[C:23](OS(C(F)(F)F)(=O)=O)[CH2:22][CH2:21]1)=[O:19])([CH3:16])([CH3:15])[CH3:14].COCCOC.C(=O)([O-])[O-].[Na+].[Na+]>[Cl-].[Na+].O.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1.C(OCC)(=O)C>[C:13]([O:17][C:18]([N:20]1[CH2:21][CH:22]=[C:23]([C:6]2[CH:7]=[C:2]([F:1])[CH:3]=[CH:4][C:5]=2[O:11][CH3:12])[CH2:24][CH2:25]1)=[O:19])([CH3:16])([CH3:14])[CH3:15]
参加物反応条件実験手順後処理出典と根拠反応ノート

参加物

8

反応物 4

HCID 80711,2-DimethoxyethaneHCID 10340Sodium CarbonateHCID 27826735-Fluoro-2-methoxyphenylboronic acidHCID 10991161Tert-butyl 4-(trifluoromethanesulfonyloxy)-1,2,3,6-tetrahydropyridine-1-carboxylate

生成物 1

HCID 597694194-(5-Fluoro-2-methoxyphenyl)-3,6-dihydro-2H-pyridine-1-carboxylic acid t-butyl ester収率 127.3%

試薬・触媒・溶媒 3

HCID 178418397HCID 178418397、化合物触媒HCID 8857Ethyl Acetate溶媒HCID 57417360Sodium chloride; water溶媒

反応条件

温度
90 °C

実験手順

To a mixture of 5-fluoro-2-methoxyphenylboronic acid (1 g, 5.88 mmol), 4-trifluoromethanesulfonyloxy-3,6-dihydro-2H-pyridine-1-carboxylic acid t-butyl ester (4.22 g, 7.64 mmol) (David J. Wustrow, Lawrence D. Wise, Synthesis, 1991, 993) and 1,2-dimethoxyethane (30 mL) were added tetrakis(triphenylphosphine)palladium(0) (0.34 g, 0.29 mmol) and 2N aqueous solution of sodium carbonate (8.82 mL, 17.6 mmol), followed by stirring for 2 hours at an external temperature of 90° C. under a nitrogen atmosphere. Brine was added to the reaction mixture and extraction was performed with ethyl acetate. The organic layer was dried over anhydrous magnesium sulfate and the filtrate was concentrated to give a residue, which was purified by silica gel column chromatography (ethyl acetate/heptane) to give 2.3 g of the title compound as a yellow oil.

後処理

  1. dry with materialThe organic layer was dried over anhydrous magnesium sulfate
  2. concentrationthe filtrate was concentrated
  3. customto give a residue, which
  4. customwas purified by silica gel column chromatography (ethyl acetate/heptane)

出典と根拠

ORDレコード
ord-2954065a723f46e987b2b52b7eae6455
出典データセット
uspto-grants-2008_08
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US07410971B2

反応ノート

読み込み中…

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