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Acetic Acid → HCID 53656302, 화합물

HRID 258626
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HRID 258626 반응식
[N+:1]([CH2:4][CH:5]1[CH2:13][C:8]2([O:12][CH2:11][CH2:10][O:9]2)[CH:7]([CH2:14][CH:15]=[CH:16][CH2:17][CH2:18][CH2:19][C:20]([OH:22])=[O:21])[CH:6]1[CH:23]=[CH:24][C:25](=[O:31])[CH2:26][CH2:27][CH2:28][CH2:29][CH3:30])([O-:3])=[O:2].[C:32]1([Mg]Br)[CH:37]=[CH:36][CH:35]=[CH:34][CH:33]=1.[Cl-].[NH4+].C(O)(=O)C>O1CCCC1>[N+:1]([CH2:4][CH:5]1[CH2:13][C:8]2([O:9][CH2:10][CH2:11][O:12]2)[CH:7]([CH2:14][CH:15]=[CH:16][CH2:17][CH2:18][CH2:19][C:20]([OH:22])=[O:21])[CH:6]1[CH:23]=[CH:24][C:25]([OH:31])([C:32]1[CH:37]=[CH:36][CH:35]=[CH:34][CH:33]=1)[CH2:26][CH2:27][CH2:28][CH2:29][CH3:30])([O-:3])=[O:2]
참가 물질실험 절차후처리출처 및 근거반응 노트

참가 물질

6

반응물 4

HCID 176Acetic AcidHCID 25517Ammonium ChlorideHCID 70607475HCID 70607475, 화합물HCID 178418255HCID 178418255, 화합물

생성물 1

HCID 53656302HCID 53656302, 화합물

시약·촉매·용매 1

HCID 8028Tetrahydrofuran용매2회

실험 절차

A solution of 1.88 g. of 7-[8-nitromethyl-7-(3-oxo-1-octenyl)-1,4-dioxaspiro[4.4]non-6-yl]-5-heptenoic acid in 80 ml. of tetrahydrofuran was treated at -10° C. with 6.6 ml. of 3 M phenyl magnesium bromide in tetrahydrofuran and was stirred at 0° C. for one hour. The reaction mixture was added to aqueous ammonium chloride solution, acidified with acetic acid and extracted with ether. After washing with water and drying with magnesium sulfate, the extract was evaporated and the residue chromatographed on silica. Elution with 30% ethyl acetate in hexane gave 0.90 g. of the title product as an oil, λmaxfilm 3.00 (shoulder), 3.50, 5.88, 6.28, 6.47, 6.95, 7.25, 13.30, 14.35 μ. NMR: δ 3.93 (S, 4, ketal), 4.35 (M, 2, --CH2NO2), 5.15-6.05 (M, 4, olefinic --H), 5.88 (S, 2, -OH), 7.45 (M, 5, aromatic-HO ppm. Mass spectrum: M+ at m/e 515 (theory 515), M+--H2O at m/e 497.2776 (theory 497.2776.

후처리

  1. extractionextracted with ether
  2. washAfter washing with water
  3. dry with materialdrying with magnesium sulfate
  4. customthe extract was evaporated
  5. customthe residue chromatographed on silica
  6. washElution with 30% ethyl acetate in hexane
  7. customgave 0.90 g

출처 및 근거

ORD 기록
ord-1c534bc540d943c2a0d130df532bac92
출처 데이터셋
uspto-grants-1977_07
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US04034002

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