Tert-butyl 6'-bromo-1'-(((2-(trimethylsilyl)ethyl)sulfonyl)imino)-1',3'-dihydrospiro[azetidine-3,2'-indene]-1-carboxylate → Tert-butyl 6'-bromo-1'-(2-(trimethylsilyl)ethylsulfonamido)-1'-vinyl-1',3'-dihydrospiro[azetidine-3,2'-indene]-1-carboxylate

HRID 473033ノート

反応式

HRID 473033 の反応式
[Br:1][C:2]1[CH:10]=[C:9]2[C:5]([CH2:6][C:7]3([CH2:23][N:22]([C:24]([O:26][C:27]([CH3:30])([CH3:29])[CH3:28])=[O:25])[CH2:21]3)[C:8]2=[N:11][S:12]([CH2:15][CH2:16][Si:17]([CH3:20])([CH3:19])[CH3:18])(=[O:14])=[O:13])=[CH:4][CH:3]=1.[CH:31]([Mg]Br)=[CH2:32]>C1COCC1>[Br:1][C:2]1[CH:10]=[C:9]2[C:5]([CH2:6][C:7]3([CH2:21][N:22]([C:24]([O:26][C:27]([CH3:30])([CH3:29])[CH3:28])=[O:25])[CH2:23]3)[C:8]2([NH:11][S:12]([CH2:15][CH2:16][Si:17]([CH3:18])([CH3:19])[CH3:20])(=[O:14])=[O:13])[CH:31]=[CH2:32])=[CH:4][CH:3]=1

参加物

4

実験手順

To a solution of tert-butyl 6′-bromo-1′-(((2-(trimethylsilyl)ethyl)sulfonyl)imino)-1′,3′-dihydrospiro[azetidine-3,2′-indene]-1-carboxylate (0.4031 g, 0.78 mmol) in THF (3 mL) was added vinylmagnesium bromide (1.0 M in THF, 3 mL, 3.0 mmol) at 0° C. under nitrogen. The mixture was allowed to slowly warm to room temperature over 18 h. The reaction mixture was then quenched with saturated NH4Cl, extracted with EtOAc, and dried over Na2SO4. After the solvent was evaporated under reduced pressure, the crude product was directly used in the next step without further purification. LC-MS tR=2.31 min in 3 min chromatography, m/z 543, 545 (MH+), 487, 489 (MH+-56).

後処理

  1. customThe reaction mixture was then quenched with saturated NH4Cl
  2. extractionextracted with EtOAc
  3. dry with materialdried over Na2SO4
  4. customAfter the solvent was evaporated under reduced pressure
  5. customthe crude product was directly used in the next step without further purification

出典と根拠

ORDレコード
ord-70f84e2ed7d2464097416cf3b5addbfa
出典データセット
uspto-grants-2014_01
特許番号
US08633212B2

反応ノート

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