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Sodium Iodide → 5-acetyl-4-oxo-5,6,7,8-tetrahydro-4H-cyclohepta[b]pyrrole-1,3-dicarboxylic acid 1-tert-butyl ester 3-ethyl ester

HRID 481081
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HRID 481081 반응식
[Bi](Cl)(Cl)Cl.[I-].[Na+].[C:7](Cl)(=[O:9])[CH3:8].[CH2:11]([O:13][C:14]([C:16]1[C:17]2[C:32]([O:33][Si](C)(C)C)=[CH:31][CH2:30][CH2:29][CH2:28][C:18]=2[N:19]([C:21]([O:23][C:24]([CH3:27])([CH3:26])[CH3:25])=[O:22])[CH:20]=1)=[O:15])[CH3:12]>C(Cl)Cl.CCOCC>[CH2:11]([O:13][C:14]([C:16]1[C:17]2[C:32](=[O:33])[CH:31]([C:7](=[O:9])[CH3:8])[CH2:30][CH2:29][CH2:28][C:18]=2[N:19]([C:21]([O:23][C:24]([CH3:27])([CH3:26])[CH3:25])=[O:22])[CH:20]=1)=[O:15])[CH3:12]
참가 물질실험 절차후처리출처 및 근거반응 노트

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6

반응물 4

HCID 5238Sodium IodideHCID 6367Acetyl chlorideHCID 24591Bismuth trichlorideHCID 207622254-trimethylsilanyloxy-7,8-dihydro-6H-cyclohepta[b]pyrrole-1,3-dicarboxylic acid 1-tert-butyl ester 3-ethyl ester

생성물 1

HCID 206056545-acetyl-4-oxo-5,6,7,8-tetrahydro-4H-cyclohepta[b]pyrrole-1,3-dicarboxylic acid 1-tert-butyl ester 3-ethyl ester수율 86%

시약·촉매·용매 1

HCID 21881112Ethyl ether methylene chloride용매

실험 절차

Bismuth (III) chloride (0.1 mmol) and sodium iodide (0.3 mmol) are transferred to a dried flask under nitrogen and 5 mL of a mixture of CH2Cl2/ether (9/1) is added by a syringe. This is followed by the addition of acetyl chloride (2.2 mmol) and the suspension is stirred for 5 min at RT. 4-trimethylsilanyloxy-7,8-dihydro-6H-cyclohepta[b]pyrrole-1,3-dicarboxylic acid 1-tert-butyl ester 3-ethyl ester (2 mmol) in 5 mL of the same solvent mixture is added. After 2 hours at RT, the mixture is quenched with 20 mL saturated NaHCO3 solution and extracted several times with CH2Cl2. The organic layers are combined, dried over Na2SO4 and evaporated in vacuo yielding 5-acetyl-4-oxo-5,6,7,8-tetrahydro-4H-cyclohepta[b]pyrrole-1,3-dicarboxylic acid 1-tert-butyl ester 3-ethyl ester as an oil (86%). LRMS 363.4 found (M+1) 364.2

후처리

  1. waitAfter 2 hours at RT
  2. customthe mixture is quenched with 20 mL saturated NaHCO3 solution
  3. extractionextracted several times with CH2Cl2
  4. dry with materialdried over Na2SO4
  5. customevaporated in vacuo

출처 및 근거

ORD 기록
ord-d3e8e5426a5845489a4b72e08857e8b7
출처 데이터셋
uspto-grants-2003_11
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US06653471B2

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