(Trifluoromethyl)trimethylsilane → HCID 17989248, 화합물

HRID 1869341노트

반응식

HRID 1869341 반응식
[CH2:1]([O:3][C:4](=[O:20])[C:5](=[O:19])[CH2:6][C:7]([C:10]1[C:18]2[O:17][CH2:16][O:15][C:14]=2[CH:13]=[CH:12][CH:11]=1)([CH3:9])[CH3:8])[CH3:2].[F:21][C:22]([Si](C)(C)C)([F:24])[F:23].[F-].C([N+](CCCC)(CCCC)CCCC)CCC>O1CCCC1.C(OCC)(=O)C.CCCCCC>[CH2:1]([O:3][C:4](=[O:20])[C:5]([OH:19])([C:22]([F:24])([F:23])[F:21])[CH2:6][C:7]([C:10]1[C:18]2[O:17][CH2:16][O:15][C:14]=2[CH:13]=[CH:12][CH:11]=1)([CH3:9])[CH3:8])[CH3:2]

참가 물질

6

반응물 3

HCID 552549(Trifluoromethyl)trimethylsilaneHCID 2724141Tetrabutylammonium FluorideHCID 17989302Ethyl 4-(benzo[1,3]dioxol-4-yl)-4-methyl-2-oxopentanoate2회

생성물 1

HCID 17989248HCID 17989248, 화합물수율 215.6%

시약·촉매·용매 2

HCID 8028Tetrahydrofuran용매2회HCID 21226206Ethyl acetate hexane용매

실험 절차

6.1 g (21.91 mmol) of 4-(1,3-benzodioxol-4-yl)-4-methyl-2-oxopentanoic acid ethyl ester, dissolved in 130 ml of tetrahydrofuran, is reacted with 9.5 ml (65.7 mmol) of (trifluoromethyl)trimethylsilane and 4.42 ml of a 1 M solution of tetrabutylammonium fluoride in tetrahydrofuran. Carrying out and working up the reaction are carried out as described in Example 3. The crude product that is obtained is purified together with one batch of a similar order of magnitude [9.19 g (33.02 mmol) of 4-(1,3-benzodioxol-4-yl)-4-methyl-2-oxopentanoic acid ethyl ester as a starting material] by chromatography on silica gel (mobile solvent ethyl acetate/hexane). 16.45 g (86%) of the desired product is isolated from the two batches.

후처리

  1. customThe crude product that is obtained

출처 및 근거

ORD 기록
ord-aa49f836d3db485a971c692f4b5c309f
출처 데이터셋
uspto-grants-2009_12
특허 번호
US07638515B2

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