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Triphenylphosphine → ethyl 5-{(2RS,3RS)-3-azido-2-(4-nitrophenyl)butyl}-2-furancarboxylate

HRID 850659
ノート
印刷プレビュー

反応式

HRID 850659 の反応式
O[CH:2]([CH3:24])[CH:3]([C:15]1[CH:20]=[CH:19][C:18]([N+:21]([O-:23])=[O:22])=[CH:17][CH:16]=1)[CH2:4][C:5]1[O:9][C:8]([C:10]([O:12][CH2:13][CH3:14])=[O:11])=[CH:7][CH:6]=1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.N(C(OCC)=O)=NC(OCC)=O.C1(P([N:70]=[N+:71]=[N-:72])(C2C=CC=CC=2)=O)C=CC=CC=1>O1CCCC1>[N:70]([CH:2]([CH3:24])[CH:3]([C:15]1[CH:20]=[CH:19][C:18]([N+:21]([O-:23])=[O:22])=[CH:17][CH:16]=1)[CH2:4][C:5]1[O:9][C:8]([C:10]([O:12][CH2:13][CH3:14])=[O:11])=[CH:7][CH:6]=1)=[N+:71]=[N-:72]
参加物実験手順後処理出典と根拠反応ノート

参加物

6

反応物 4

HCID 11776TriphenylphosphineHCID 199401P,P-Diphenylphosphinic azideHCID 220568ethyl N-ethoxycarbonyliminocarbamateHCID 19364506ethyl 5-{(2RS,3SR)-3-hydroxy-2-(4-nitrophenyl)butyl}-2-furancarboxylate

生成物 1

HCID 54125754ethyl 5-{(2RS,3RS)-3-azido-2-(4-nitrophenyl)butyl}-2-furancarboxylate収率 82.3%

試薬・触媒・溶媒 1

HCID 8028Tetrahydrofuran溶媒

実験手順

3.66 g of ethyl 5-{(2RS,3SR)-3-hydroxy-2-(4-nitrophenyl)butyl}-2-furancarboxylate was dissolved in 40 ml of tetrahydrofuran, and 4.32 g of triphenylphosphine, 2.60 ml of diethyl azodicarboxylate and 4.53 g of diphenylphosphoryl azide were added under cooling with ice with stirring, followed by stirring at room temperature for 18 hours. The reaction solution was evaporated to dryness under reduced pressure. Then, the residue was purified by silica gel column chromatography (hexane/ethyl acetate=50/1) to obtain 3.24 g of the above-identified compound.

後処理

  1. temperatureunder cooling with ice
  2. stirringby stirring at room temperature for 18 hours
  3. customThe reaction solution was evaporated to dryness under reduced pressure
  4. customThen, the residue was purified by silica gel column chromatography (hexane/ethyl acetate=50/1)

出典と根拠

ORDレコード
ord-f1bb8c43984f4d2eb5215698e914e929
出典データセット
uspto-grants-2000_01
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US06017956

反応ノート

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