Iodine → HCID 20796135, 화합물

HRID 1070997노트

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HRID 1070997 반응식
[CH2:1]([O:3][C:4](=[O:23])[C:5]([OH:22])([C:18]([F:21])([F:20])[F:19])[CH2:6][C:7]([C:9]1[CH:14]=[C:13]([F:15])[CH:12]=[CH:11][C:10]=1[O:16][CH3:17])=[CH2:8])[CH3:2].II.I[CH2:27]I>CCOCC.CCOC(C)=O.[Cu].[Zn]>[CH2:1]([O:3][C:4](=[O:23])[C:5]([CH2:6][C:7]1([C:9]2[CH:14]=[C:13]([F:15])[CH:12]=[CH:11][C:10]=2[O:16][CH3:17])[CH2:27][CH2:8]1)([OH:22])[C:18]([F:19])([F:20])[F:21])[CH3:2]

참가 물질

7

반응물 3

HCID 807IodineHCID 6346DiiodomethaneHCID 207961364-(5-Fluoro-2-methoxyphenyl)-2-hydroxy-2-trifluoromethylpent-4-enoic acid ethyl ester

생성물 1

HCID 20796135HCID 20796135, 화합물수율 76.6%

시약·촉매·용매 3

HCID 10290809Zinc copper couple촉매HCID 3283Diethyl Ether용매HCID 8857Ethyl Acetate용매

실험 절차

To a solution of 620 mg (1.84 mmol) of 4-(5-fluoro-2-methoxyphenyl)-2-hydroxy-2-trifluoromethylpent-4-enoic acid ethyl ester, 475 mg zinc copper couple, and an iodine crystal in anhydrous ether in a sealed tube warmed to 55° C. was added dropwise 500 μL (6.20 mmol) of diiodomethane. The reaction was monitored by TLC in dichloromethane-hexanes (1:1) or ether-hexanes (2:8). After 18 hours, the mixture was cooled, diluted with EtOAc, and filtered through diatomaceous earth. The filtrate was washed with three 10 mL portions of 1 N aqueous HCl, 10 mL of brine, three 10 mL portions of saturated aqueous sodium bicarbonate, dried over magnesium sulfate, filtered, and concentrated. The crude material was adsorbed onto silica gel and chromatographed on silica gel using ether-hexanes (0:100, then 1:99, then 2:98) to afford 494 mg (76%) of 3,3,3-trifluoro-2-[1-(5-fluoro-2-methoxyphenyl)cyclopropylmethyl]-2-hydroxypropionic acid ethyl ester.

후처리

  1. temperaturethe mixture was cooled
  2. filtrationfiltered through diatomaceous earth
  3. washThe filtrate was washed with three 10 mL portions of 1 N aqueous HCl, 10 mL of brine, three 10 mL portions of saturated aqueous sodium bicarbonate
  4. dry with materialdried over magnesium sulfate
  5. filtrationfiltered
  6. concentrationconcentrated
  7. customchromatographed on silica gel

출처 및 근거

ORD 기록
ord-28f11df7eafe4c41a885c01fd194ea07
출처 데이터셋
uspto-grants-2005_06
특허 번호
US06903215B2

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