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Potassium Carbonate → 3-Methyl-3-naphthalen-2-ylmethyl-2,3-dihydro-benzofuran-6-carboxylic acid methyl ester

HRID 523517
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HRID 523517 반응식
[CH3:1][O:2][C:3](=[O:16])[C:4]1[CH:9]=[CH:8][C:7](I)=[C:6]([O:11][CH2:12][C:13]([CH3:15])=[CH2:14])[CH:5]=1.C(=O)([O-])[O-].[K+].[K+].[CH:23]1[C:32]2[C:27](=[CH:28][CH:29]=[CH:30][CH:31]=2)[CH:26]=[CH:25][C:24]=1B(O)O>CN(C=O)C.[Cl-].C([N+](CCCC)(CCCC)CCCC)CCC.C([O-])(=O)C.[Pd+2].C([O-])(=O)C>[CH3:1][O:2][C:3]([C:4]1[CH:9]=[CH:8][C:7]2[C:13]([CH3:15])([CH2:14][C:25]3[CH:24]=[CH:23][C:32]4[C:27](=[CH:28][CH:29]=[CH:30][CH:31]=4)[CH:26]=3)[CH2:12][O:11][C:6]=2[CH:5]=1)=[O:16]
참가 물질실험 절차후처리출처 및 근거반응 노트

참가 물질

7

반응물 3

HCID 11430Potassium CarbonateHCID 2734375(Naphthalen-2-yl)boronic acidHCID 251290454-Iodo-3-(2-methyl-allyloxy)-benzoic acid methyl ester

생성물 1

HCID 684764713-Methyl-3-naphthalen-2-ylmethyl-2,3-dihydro-benzofuran-6-carboxylic acid methyl ester수율 22%

시약·촉매·용매 3

HCID 70681Tetrabutylammonium Chloride
촉매
HCID 167845palladium(II) acetate촉매
HCID 6228Dimethylformamide용매2회

실험 절차

A solution of 4-Iodo-3-(2-methyl-allyloxy)-benzoic acid methyl ester (455 mg, 1.37 mmol) in DMF (15 mL) were added Potassium carbonate (379 mg, 2.74 mmol), Tetrabutylammonium chloride (380 mg, 1.37 mmol), Palladium acetate (25.6 mg, 0.136 mmol) in DMF (5 mL) and 2-Naphthylboronic acid, (282 mg, 1.64 mmol) was submitted to microwave irradiation at 150° C. for 16 minutes. The resulting mixture was filtered over silica, washed with water, dried over MgSO4 and concentrated. Column chromatography (silica gel, heptane/CH2Cl2: 4/6) afforded 100 mg (22%) of the title compound as a slightly brown oil which crystallized.

후처리

  1. customirradiation at 150° C. for 16 minutes
  2. filtrationThe resulting mixture was filtered over silica
  3. washwashed with water
  4. dry with materialdried over MgSO4
  5. concentrationconcentrated

출처 및 근거

ORD 기록
ord-44582b253bb64666ae630024a8c47152
출처 데이터셋
uspto-grants-2016_05
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US09339486B2

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