Triphenylphosphine → 5-[2-(2,6-Dimethyl-4'-trifluoromethyl-biphenyl-4-yloxy)-1,1-dimethyl-ethyl]-thiophene-2-carboxylic acid methyl ester

HRID 660986노트

반응식

HRID 660986 반응식
[CH3:1][O:2][C:3]([C:5]1[S:6][C:7]([C:10]([CH3:14])([CH3:13])[CH2:11][OH:12])=[CH:8][CH:9]=1)=[O:4].[CH3:15][C:16]1[CH:21]=[C:20](O)[CH:19]=[C:18]([CH3:23])[C:17]=1[C:24]1[CH:29]=[CH:28][C:27]([C:30]([F:33])([F:32])[F:31])=[CH:26][CH:25]=1.C1C=CC(P(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1.N(C(N1CCCCC1)=O)=NC(N1CCCCC1)=O>C1(C)C=CC=CC=1.CO>[CH3:1][O:2][C:3]([C:5]1[S:6][C:7]([C:10]([CH3:14])([CH3:13])[CH2:11][O:12][C:20]2[CH:21]=[C:16]([CH3:15])[C:17]([C:24]3[CH:29]=[CH:28][C:27]([C:30]([F:31])([F:33])[F:32])=[CH:26][CH:25]=3)=[C:18]([CH3:23])[CH:19]=2)=[CH:8][CH:9]=1)=[O:4]

참가 물질

7

반응물 4

HCID 11776TriphenylphosphineHCID 730421,1'-(Azodicarbonyl)dipiperidineHCID 569717492,6-Dimethyl-4'-(trifluoromethyl)-[1,1'-biphenyl]-4-olHCID 67484466Methyl 5-(1-hydroxy-2-methylpropan-2-yl)thiophene-2-carboxylate

생성물 1

HCID 593559295-[2-(2,6-Dimethyl-4'-trifluoromethyl-biphenyl-4-yloxy)-1,1-dimethyl-ethyl]-thiophene-2-carboxylic acid methyl ester수율 42%

시약·촉매·용매 2

HCID 887Methanol용매HCID 1140Toluene용매

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온도
80 °C

실험 절차

A mixture of 5-(2-hydroxy-1,1-dimethyl-ethyl)-thiophene-2-carboxylic acid methyl ester (0.436 g, 2.04 mmol), 2,6-dimethyl-4′-trifluoromethyl-biphenyl-4-ol (0.596 g, 2.24 mmol), and PPh3 (0.793 g, 3.02 mmol) is dissolved in toluene (20 mL), treated with 1,1′-(azodicarbonyl)dipiperidine (ADDP, 0.763 g, 3.02 mmol), and stirred overnight at 80° C. The mixture is then cooled to rt, diluted with MeOH until homogeneous, and concentrated. The residue is loaded onto silica gel and eluted using hexanes with an ethyl acetate gradient from 0% to 40% to afford 5-[2-(2,6-dimethyl-4′-trifluoromethyl-biphenyl-4-yloxy)-1,1-dimethyl-ethyl]-thiophene-2-carboxylic acid methyl ester (0.394 g, 42%). MS (ES): 463.3 [M+H]+.

후처리

  1. temperatureThe mixture is then cooled to rt
  2. concentrationconcentrated
  3. washeluted

출처 및 근거

ORD 기록
ord-996cda2a683641c991574375c43bd1dd
출처 데이터셋
uspto-grants-2011_12
특허 번호
US08084489B2

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