Dimethylformamide → 4-{Cycloheptylidene[4-(5-hydroxy-1-pentyn-1-yl)phenyl]methyl}phenol

HRID 1716150노트

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HRID 1716150 반응식
Br[C:2]1[CH:7]=[CH:6][C:5]([C:8](=[C:16]2[CH2:23][CH2:22]CC[CH2:19][CH2:18][CH2:17]2)[C:9]2[CH:14]=[CH:13][C:12]([OH:15])=[CH:11][CH:10]=2)=[CH:4][CH:3]=1.[CH:24](N(CC)C(C)C)(C)C.[CH2:33](O)[CH2:34][CH2:35][C:36]#C.[NH4+].[Cl-].CN([CH:44]=[O:45])C>Cl[Pd](Cl)([P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1)[P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1.[Cu]I.O>[C:16]1(=[C:8]([C:5]2[CH:6]=[CH:7][C:2]([C:33]#[C:34][CH2:35][CH2:36][CH2:44][OH:45])=[CH:3][CH:4]=2)[C:9]2[CH:14]=[CH:13][C:12]([OH:15])=[CH:11][CH:10]=2)[CH2:23][CH2:22][CH2:24][CH2:19][CH2:18][CH2:17]1

참가 물질

9

반응물 5

HCID 6228DimethylformamideHCID 25517Ammonium ChlorideHCID 793464-Pentyn-1-olHCID 81531DiisopropylethylamineHCID 686544754-[(4-Bromophenyl)(cyclooctylidene)methyl]phenol

생성물 1

HCID 111992024-{Cycloheptylidene[4-(5-hydroxy-1-pentyn-1-yl)phenyl]methyl}phenol수율 45%

시약·촉매·용매 3

HCID 24350Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)촉매HCID 178418476HCID 178418476, 화합물촉매HCID 962Water용매

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온도
80 °C

실험 절차

To a degassed solution of 4-[(4-bromophenyl)(cycloheptylidene)methyl]phenol (9) (0.20 g, 0.56 mmol) in DMF (5 mL) were added Pd(PPh3)2Cl2 (40 mg, 0.06 mmol), CuI (11 mg, 0.06 mmol), N,N-diisopropylethylamine (0.45 mL, 2.52 mmol) and 4-pentyn-1-ol (0.11 mL, 1.12 mmol). The reaction mixture was stirred at 80° C. overnight, poured into saturated aqueous NH4Cl (15 mL) and water (5 mL), extracted with ethyl acetate (3×50 mL). The combined organic phase was washed with water, brine, dried over Na2SO4, filtered, and the filtrate was concentrated to give the crude product as brown oil. The crude product was purified by chromatography on a silica gel column eluted with a gradient from hexanes to 45% EtOAc in hexanes to give a light brown solid. The solid was triturated with hot hexanes containing 1% MeOH to afford 91 mg (45%) of the title compound (240) as beige solid. mp 125-126° C. 1H NMR (400 MHz, DMSO-d6): δ 1.49 (bs, 8H), 1.60-1.70 (m, 2H), 2.10-2.25 (m, 4H), 2.41 (t, J=7.0 Hz, 2H), 3.40-3.50 (m, 2H), 4.49 (t, J=5.2 Hz, 1H), 6.65 (d, J=8.4 Hz, 2H), 6.88 (d, J=8.4 Hz, 2H), 7.04 (d, J=8.0 Hz, 2H), 7.26 (d, J=8.2 Hz, 2H), 9.27 (s, 1H). LCMS (ESI): m/z 361 (M+H)+, 359 (M−H)−.

후처리

  1. extractionextracted with ethyl acetate (3×50 mL)
  2. washThe combined organic phase was washed with water, brine
  3. dry with materialdried over Na2SO4
  4. filtrationfiltered
  5. concentrationthe filtrate was concentrated
  6. customto give the crude product as brown oil
  7. customThe crude product was purified by chromatography on a silica gel column
  8. washeluted with a gradient from hexanes to 45% EtOAc in hexanes
  9. customto give a light brown solid
  10. customThe solid was triturated with hot hexanes containing 1% MeOH

출처 및 근거

ORD 기록
ord-247ff2397474489b9c69a8f7fe2e313b
출처 데이터셋
uspto-grants-2010_09
특허 번호
US07799828B2

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