Dichloromethane → 3-(2,3'-Diisobutyl-4'-methoxy-biphenyl-4-yl)propionitrile

HRID 25844

반응식

HRID 25844 반응식
FC(F)(F)S(O[C:7]1[CH:12]=[CH:11][C:10]([CH2:13][CH2:14][C:15]#[N:16])=[CH:9][C:8]=1[CH2:17][CH:18]([CH3:20])[CH3:19])(=O)=O.[CH2:23]([C:27]1[CH:28]=[C:29](B2OC(C)(C)C(C)(C)O2)[CH:30]=[CH:31][C:32]=1[O:33][CH3:34])[CH:24]([CH3:26])[CH3:25].C([O-])([O-])=O.[Na+].[Na+].C(Cl)Cl>COCCOC.CCO.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>[CH2:17]([C:8]1[CH:9]=[C:10]([CH2:13][CH2:14][C:15]#[N:16])[CH:11]=[CH:12][C:7]=1[C:29]1[CH:30]=[CH:31][C:32]([O:33][CH3:34])=[C:27]([CH2:23][CH:24]([CH3:26])[CH3:25])[CH:28]=1)[CH:18]([CH3:20])[CH3:19]

참가 물질

7

반응물 4

HCID 6344DichloromethaneHCID 10340Sodium CarbonateHCID 121347033-Isobutyl-4-(trifluoromethylsulfonyloxy)benzenepropanenitrileHCID 121347052-(3-Isobutyl-4-methoxyphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane

생성물 1

HCID 225652533-(2,3'-Diisobutyl-4'-methoxy-biphenyl-4-yl)propionitrile수율 100%

시약·촉매·용매 2

HCID 178418397HCID 178418397, 화합물촉매HCID 20074477Dimethoxyethane ethanol용매

반응 조건

온도
80 °C

실험 절차

294.8 mg (0.88 mmol) 4-(2-Cyanoethyl)-2-isobutylphenyl-trifluormethanesulfonate (6), 312.9 mg (1.08 mmol, 1.23 eq.) 2-(3-Isobutyl-4-methoxyphenyl)-4,4,5,5-tetramethyl-[1,3,2]dioxaborolane (11) and 156 mg (135 μmol, 0.15 eq.) Pd(Ph3P)4 were dissolved in 20 ml DME/EtOH (9+1). To this yellow solution 0.88 ml (1.76 mmol, 2.00 eq.) of a 2 M aq. Na2CO3-solution was added and the resulting mixture was heated at 80° C. for 17 h. After concentrating the mixture in vacuo the residue was taken up in water and extracted with CH2Cl2. The comb. org. fractions were dried over MgSO4 and evaporated. Column chromatography (CH2Cl2) yielded 305.9 mg (0.88 mmol, 99.45%) 3-(2,3′-Diisobutyl-4′-methoxy-biphenyl-4-yl)propionitrile (73) as a clear oil. Rf (CH2Cl2)=0.68. 1H-NMR (500 MHz, CDCl3): δ=0.67 (d, 6H, J=6.62 Hz, 2*CH3), 0.85 (d, 6H, J=6.62 Hz, 2*CH3), 1.61 (m, 1H, CH), 1.89 (m, 1H, CH), 2.44 (d, 2H, J=7.25 Hz, CH2), 2.45 (d, 2H, J=7.25 Hz, CH2), 2.59 (t, 2H, J=7.41 Hz, CH2CH2CN), 2.91 (t, 2H, J=7.41 Hz, CH2CH2CN), 3.79 (s, 3H, OCH3), 6.80 (d, 1H, J=8.36 Hz), 6.94 (d, 1H, J=2.21 Hz), 6.98-7.04 (m, 3H), 7.09 (d, 1H, J=7.57 Hz). MS (EI): m/z=350 (23), 349 (90), 307 (10), 306 (35), 290 (39), 250 (15), 248 (17), 247 (100), 246 (24), 209 (21), 191 (16), 178 (10), 147 (10), 145 (17), 144 (19), 117 (13), 105 (25), 83 (11), 57 (18). HR-MS (EI): Calcd. for C24H31NO: 349.240564. Found: 349.240765.

후처리

  1. concentrationAfter concentrating the mixture in vacuo the residue
  2. extractionextracted with CH2Cl2
  3. dry with materialfractions were dried over MgSO4
  4. customevaporated

출처 및 근거

ORD 기록
ord-d956c5d8dd904c77b91edd467b105a47
출처 데이터셋
uspto-grants-2005_02
특허 번호
US06858600B2

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