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4-Nitrobenzoic Acid → 3-(4-Nitro-benzoyloxy)-hexahydro-pyrrolo[3,2-b]pyrrole-1,4-dicarboxylic acid 4-benzyl ester 1-tert-butyl ester

HRID 1965185
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HRID 1965185 반응식
[C:1]([O:5][C:6]([N:8]1[CH2:12][CH:11]([OH:13])[CH:10]2[N:14]([C:17]([O:19][CH2:20][C:21]3[CH:26]=[CH:25][CH:24]=[CH:23][CH:22]=3)=[O:18])[CH2:15][CH2:16][CH:9]12)=[O:7])([CH3:4])([CH3:3])[CH3:2].C1C=CC(P(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1.[N+:46]([C:49]1[CH:57]=[CH:56][C:52]([C:53](O)=[O:54])=[CH:51][CH:50]=1)([O-:48])=[O:47].CC(OC(/N=N/C(OC(C)C)=O)=O)C>C1C=CC=CC=1>[C:1]([O:5][C:6]([N:8]1[CH2:12][CH:11]([O:13][C:53](=[O:54])[C:52]2[CH:51]=[CH:50][C:49]([N+:46]([O-:48])=[O:47])=[CH:57][CH:56]=2)[CH:10]2[N:14]([C:17]([O:19][CH2:20][C:21]3[CH:26]=[CH:25][CH:24]=[CH:23][CH:22]=3)=[O:18])[CH2:15][CH2:16][CH:9]12)=[O:7])([CH3:4])([CH3:2])[CH3:3]
참가 물질실험 절차후처리출처 및 근거반응 노트

참가 물질

6

반응물 4

HCID 61084-Nitrobenzoic AcidHCID 11776TriphenylphosphineHCID 5363146Diisopropyl azodicarboxylateHCID 676073943-Hydroxy-hexahydro-pyrrolo[3,2-b]pyrrole-1,4-dicarboxylic acid 4-benzyl ester 1-tert-butyl ester

생성물 1

HCID 676070203-(4-Nitro-benzoyloxy)-hexahydro-pyrrolo[3,2-b]pyrrole-1,4-dicarboxylic acid 4-benzyl ester 1-tert-butyl ester

시약·촉매·용매 1

HCID 241Benzene용매

실험 절차

To a solution of bicyclic alcohol 11 (4.0 g, 11.0 mmol) in benzene (55 mL) at ambient temperature was added Ph3P (5.8 mg, 22.1 mmol) and p-nitrobenzoic acid (3.7 g, 22.1 mmol). DIAD (4.6 mL, 22.1 mmol) was added dropwise via syringe over 1 h, keeping the temperature below 25° C. After 12 h, the reaction mixture was concentrated in vacuo and the residue was purified by flash silica gel chromatography (3:1 to 1:1 hexanes/EtOAc). The partially-purified product (42) was used without further purification. Mass spectrum, m/z [511.9] (M+H)+.

후처리

  1. customthe temperature below 25° C
  2. concentrationthe reaction mixture was concentrated in vacuo
  3. customthe residue was purified by flash silica gel chromatography (3:1 to 1:1 hexanes/EtOAc)
  4. customThe partially-purified product (42) was used without further purification

출처 및 근거

ORD 기록
ord-6de3c18345bf4c088f305ffdb2f73747
출처 데이터셋
uspto-grants-2013_04
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08415486B2

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