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Boron trifluoride etherate → Benzyl 4-chloro-3-(diethoxyphosphorylamino)piperidine-1-carboxylate

HRID 1920200
ノート
印刷プレビュー

反応式

HRID 1920200 の反応式
[CH2:1]([O:3][P:4]([N:9]1[CH:15]2[CH:10]1[CH2:11][CH2:12][N:13]([C:16]([O:18][CH2:19][C:20]1[CH:25]=[CH:24][CH:23]=[CH:22][CH:21]=1)=[O:17])[CH2:14]2)([O:6][CH2:7][CH3:8])=[O:5])[CH3:2].[ClH:26].C(N(CC)CC)C.B(F)(F)F.CCOCC>C(Cl)Cl>[Cl:26][CH:10]1[CH2:11][CH2:12][N:13]([C:16]([O:18][CH2:19][C:20]2[CH:25]=[CH:24][CH:23]=[CH:22][CH:21]=2)=[O:17])[CH2:14][CH:15]1[NH:9][P:4]([O:6][CH2:7][CH3:8])([O:3][CH2:1][CH3:2])=[O:5]
参加物実験手順後処理出典と根拠反応ノート

参加物

5

反応物 3

HCID 8000Boron trifluoride etherateHCID 11130Triethylamine hydrochlorideHCID 59455678Benzyl 7-(diethoxyphosphoryl)-3,7-diazabicyclo[4.1.0]heptane-3-carboxylate

生成物 1

HCID 67500461Benzyl 4-chloro-3-(diethoxyphosphorylamino)piperidine-1-carboxylate収率 89%

試薬・触媒・溶媒 1

HCID 6344Dichloromethane溶媒

実験手順

To a solution of benzyl 7-(diethoxyphosphoryl)-3,7-diazabicyclo[4.1.0]heptane-3-carboxylate (1.0 equiv.) and triethyl amine hydrochloride (4 equiv.) in DCM (0.1M) was added BF3.OEt2 (2.0 equiv.) and the reaction was allowed to stir at room temperature for 2 h under a nitrogen atmosphere. The solution was then quenched with water and extracted with DCM. The crude product was purified via silica gel column chromatography (ISCO eluting with EtOAc and Hexanes 50% to 100% EtOAc) to yield benzyl 4-chloro-3-(diethoxyphosphorylamino)piperidine-1-carboxylate in 89% yield. LCMS (m/z): 405.1 (MH+), Rt=2.73 min.

後処理

  1. customThe solution was then quenched with water
  2. extractionextracted with DCM
  3. customThe crude product was purified via silica gel column chromatography (ISCO eluting with EtOAc and Hexanes 50% to 100% EtOAc)

出典と根拠

ORDレコード
ord-352df27c6f2341998d999229bfd4719c
出典データセット
uspto-grants-2012_05
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US08168794B2

反応ノート

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