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Toluene → 2-(4-Cyclopropyl-2,6-dimethyl-phenyl)-4-(tetrahydropyran-4-ylmethyl)-cyclopentane-1,3-dione

HRID 509173
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HRID 509173 반응식
Br[C:2]1[CH:7]=[C:6]([CH3:8])[C:5]([CH:9]2[C:13](=[O:14])[CH:12]([CH2:15][CH:16]3[CH2:21][CH2:20][O:19][CH2:18][CH2:17]3)[CH2:11][C:10]2=[O:22])=[C:4]([CH3:23])[CH:3]=1.P([O-])([O-])([O-])=O.[K+].[K+].[K+].[CH:32]1(B(O)O)[CH2:34][CH2:33]1.C1(C)C=CC=CC=1>C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1.O.C(COC)OC>[CH:32]1([C:2]2[CH:7]=[C:6]([CH3:8])[C:5]([CH:9]3[C:13](=[O:14])[CH:12]([CH2:15][CH:16]4[CH2:21][CH2:20][O:19][CH2:18][CH2:17]4)[CH2:11][C:10]3=[O:22])=[C:4]([CH3:23])[CH:3]=2)[CH2:34][CH2:33]1
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HCID 1140TolueneHCID 62657Potassium Phosphate, TribasicHCID 2760897Cyclopropylboronic acidHCID 584814642-(4-Bromo-2,6-dimethylphenyl)-4-(tetrahydropyran-4-ylmethyl)cyclopentane-1,3-dione

생성물 1

HCID 584815142-(4-Cyclopropyl-2,6-dimethyl-phenyl)-4-(tetrahydropyran-4-ylmethyl)-cyclopentane-1,3-dione수율 13.6%

시약·촉매·용매 3

HCID 178418397HCID 178418397, 화합물촉매HCID 962Water용매HCID 80711,2-Dimethoxyethane용매

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온도
130 °C

실험 절차

A mixture of 2-(4-bromo-2,6-dimethylphenyl)-4-(tetrahydropyran-4-ylmethyl)cyclopentane-1,3-dione (0.1 g, 0.26 mmol), potassium phosphate (0.11 g, 0.53 mmol), cyclopropyl boronic acid (0.09 g, 1.05 mmol) and tetrakis(triphenylphosphine)palladium (0) (0.06 g, 0.053 mmol), toluene (2 ml), dimethoxyethane (0.5 ml) and water (0.5 ml) is heated under microwave conditions at 130° C. for 22 minutes. The organic solvent is evaporated under vacuo, diluted with water and extracted with ethylacetate (3×25 ml). The combined organic extracts are combined, washed with water and brine, dried over anhydrous sodium sulphate, filtered and the filtrate is concentrated in vacuo. The residue is purified by column chromatography on silica gel followed by preparative HPLC to give 2-(4-cyclopropyl-2,6-dimethyl-phenyl)-4-(tetrahydropyran-4-ylmethyl)-cyclopentane-1,3-dione (0.012 g).

후처리

  1. customThe organic solvent is evaporated under vacuo
  2. additiondiluted with water
  3. extractionextracted with ethylacetate (3×25 ml)
  4. washwashed with water and brine
  5. dry with materialdried over anhydrous sodium sulphate
  6. filtrationfiltered
  7. concentrationthe filtrate is concentrated in vacuo
  8. customThe residue is purified by column chromatography on silica gel

출처 및 근거

ORD 기록
ord-34a7c39a85b44dda8cd278f930f21ca4
출처 데이터셋
uspto-grants-2015_08
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US09096560B2

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