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4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)phenol → Methyl 7-(4-hydroxyphenyl)-1-naphthalenecarboxylate

HRID 1693676
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인쇄 미리보기

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HRID 1693676 반응식
FC(F)(F)S(O[C:7]1[CH:16]=[C:15]2[C:10]([CH:11]=[CH:12][CH:13]=[C:14]2[C:17]([O:19][CH3:20])=[O:18])=[CH:9][CH:8]=1)(=O)=O.CC1(C)C(C)(C)OB([C:31]2[CH:36]=[CH:35][C:34]([OH:37])=[CH:33][CH:32]=2)O1>COCCOC.C([O-])([O-])=O.[Na+].[Na+]>[OH:37][C:34]1[CH:35]=[CH:36][C:31]([C:7]2[CH:16]=[C:15]3[C:10]([CH:11]=[CH:12][CH:13]=[C:14]3[C:17]([O:19][CH3:20])=[O:18])=[CH:9][CH:8]=2)=[CH:32][CH:33]=1
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참가 물질

5

반응물 2

HCID 27346244-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)phenolHCID 59264870Methyl 7-{[(trifluoromethyl)sulfonyl]oxy}-1-naphthalenecarboxylate

생성물 1

HCID 59264859Methyl 7-(4-hydroxyphenyl)-1-naphthalenecarboxylate수율 77.7%

시약·촉매·용매 2

HCID 80711,2-Dimethoxyethane용매HCID 10340Sodium Carbonate용매

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온도
70 °C

실험 절차

A solution of methyl 7-{[(trifluoromethyl)sulfonyl]oxy}-1-naphthalenecarboxylate (1.00 g, 3.0 mmol), tetrakistriphenylphosphine palladium (142 mg, 0.12 mmol) and 4-(4,4,5,5-tetramethyl 1,3,2-dioxaborolan-2-yl-)phenol (799 mg, 3.6 mmol) in a mixture of 1,2-dimethoxyethane (16 mL) and 2M aqueous Na2CO3 (13 mL) was heated in a 70° C. oil bath for 90 minutes. The solution was partitioned between ethyl acetate and water. The organic layer was dried with magnesium sulfate, filtered, and concentrated. The crude material was purified by chromatography on silica gel, hexane to 3:7 ethyl acetate:hexanes, to provide the title compound (0.648 g, 77.7%). 1H NMR (DMSO-d6): 9.65 (s, 1H), 8.94 (s, 1H), 8.18-8.13 (m, 2H), 8.05 (d, J=8 Hz, 1H), 7.85 (dd, J=2, 9 Hz; 1H), 7.60 (d, J=9 Hz, 2H), 7.56-7.53 (m, 1H), 6.90 (d, J=9 Hz, 2H), 3.93 (s, 3H).

후처리

  1. customThe solution was partitioned between ethyl acetate and water
  2. dry with materialThe organic layer was dried with magnesium sulfate
  3. filtrationfiltered
  4. concentrationconcentrated
  5. customThe crude material was purified by chromatography on silica gel, hexane to 3:7 ethyl acetate

출처 및 근거

ORD 기록
ord-c62cfb4df94144ce854a9d885f0b2e1d
출처 데이터셋
uspto-grants-2012_04
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08158665B2

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