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Cesium carbonate → tert-butyl N-[(3S)-1-(5-bromo-1-methyl-2-oxo-3-pyridyl)-3-piperidyl]carbamate

HRID 57946
ノート
印刷プレビュー

反応式

HRID 57946 の反応式
Br[C:2]1[C:3](=[O:10])[N:4]([CH3:9])[CH:5]=[C:6]([Br:8])[CH:7]=1.[NH:11]1[CH2:16][CH2:15][CH2:14][C@H:13]([NH:17][C:18](=[O:24])[O:19][C:20]([CH3:23])([CH3:22])[CH3:21])[CH2:12]1.C(=O)([O-])[O-].[Cs+].[Cs+].CC1(C)C2C(=C(P(C3C=CC=CC=3)C3C=CC=CC=3)C=CC=2)OC2C(P(C3C=CC=CC=3)C3C=CC=CC=3)=CC=CC1=2>O1CCOCC1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.[Pd].[Pd]>[Br:8][C:6]1[CH:7]=[C:2]([N:11]2[CH2:16][CH2:15][CH2:14][C@H:13]([NH:17][C:18](=[O:24])[O:19][C:20]([CH3:22])([CH3:21])[CH3:23])[CH2:12]2)[C:3](=[O:10])[N:4]([CH3:9])[CH:5]=1
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

7

反応物 4

HCID 10796Cesium carbonateHCID 6360441,1'-(9,9-Dimethyl-9H-xanthene-4,5-diyl)bis(1,1-diphenylphosphine)HCID 1514171tert-butyl N-[(3S)-piperidin-3-yl]carbamateHCID 36143503,5-Dibromo-1-methylpyridin-2(1H)-one

生成物 1

HCID 86707131tert-butyl N-[(3S)-1-(5-bromo-1-methyl-2-oxo-3-pyridyl)-3-piperidyl]carbamate収率 59.4%

試薬・触媒・溶媒

2
HCID 9811564Bis(dibenzylideneacetone)palladium触媒HCID 312751,4-Dioxane溶媒

反応条件

温度
110 °C

実験手順

A mixture of 3,5-dibromo-1-methyl-pyridin-2-one (2.000 mmol; 533.8 mg), tert-butyl N-[(3S)-3-piperidyl]carbamate (2.00 mmol; 401 mg), cesium carbonate (4.0 mmol; 1303 mg), Xantphos (0.3400 mmol; 202.8 mg), and tris(dibenzylideneacetone)dipalladium(0) (0.2000 mmol; 185.0 mg) in 1,4-Dioxane (10 mL) was purged with Argon, then sealed and stirred at 110° C. overnight. The mixture was cooled to room temperature and filtered through Celite. The filtrate was concentrated and the residue was purified on silica eluted with 0 to 100% EtOAc in Heptane to afford tert-butyl N-[(3S)-1-(5-bromo-1-methyl-2-oxo-3-pyridyl)-3-piperidyl]carbamate as a yellow solid (458.6 mg, 59%).

後処理

  1. customwas purged with Argon
  2. customsealed
  3. temperatureThe mixture was cooled to room temperature
  4. filtrationfiltered through Celite
  5. concentrationThe filtrate was concentrated
  6. customthe residue was purified on silica
  7. washeluted with 0 to 100% EtOAc in Heptane

出典と根拠

ORDレコード
ord-02ec5b27673a4a4e92c7a0ba42499636
出典データセット
uspto-grants-2016_09
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US09434725B2

反応ノート

読み込み中…

このページの内容参加物反応条件実験手順後処理出典と根拠反応ノート