Triphenylphosphine → 2-(4'-Nitro-biphenyl-4-yloxy)-3-phenyl-propionic acid methyl ester

HRID 493515ノート

反応式

HRID 493515 の反応式
[OH:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2[CH:13]=[CH:12][C:11]([N+:14]([O-:16])=[O:15])=[CH:10][CH:9]=2)=[CH:4][CH:3]=1.[CH3:17][O:18][C:19](=[O:29])[CH:20](O)[CH2:21][C:22]1[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.N(C(OC(C)C)=O)=NC(OC(C)C)=O>C(OCC)C>[CH3:17][O:18][C:19](=[O:29])[CH:20]([O:1][C:2]1[CH:3]=[CH:4][C:5]([C:8]2[CH:13]=[CH:12][C:11]([N+:14]([O-:16])=[O:15])=[CH:10][CH:9]=2)=[CH:6][CH:7]=1)[CH2:21][C:22]1[CH:23]=[CH:24][CH:25]=[CH:26][CH:27]=1

参加物

6

反応物 4

HCID 11776TriphenylphosphineHCID 75555Diisopropyl diazene-1,2-dicarboxylateHCID 1380784-Hydroxy-4'-nitrobiphenylHCID 518800Methyl 2-hydroxy-3-phenylpropanoate

生成物 1

HCID 688591992-(4'-Nitro-biphenyl-4-yloxy)-3-phenyl-propionic acid methyl ester

試薬・触媒・溶媒 1

HCID 3283Diethyl Ether溶媒

反応条件

温度
0 °C

実験手順

A mixture of 4′-hydroxy-4-nitro-biphenyl (4.12 g, 19.1 mmol), prepared in step 2 of Example 16, 2-hydroxy-3-phenyl-propionic acid methyl ester (3.35 g, 18.5 mmol) and triphenylphosphine (4.12 g, 19.1 mmol) in diethyl ether was cooled under nitrogen to 0° C. Diisopropyl azodicarboxylate (6.09 mL, 30.96 mmol) was then added and the reaction allowed to come to room temperature and then stirred overnight at room temperature. The reaction was concentrated under reduced pressure. Purification of the residue on silica gel using 15% ethyl acetate hexanes as the eluent gave 2-(4′-nitro-biphenyl-4-yloxy)-3-phenyl-propionic acid methyl ester.

後処理

  1. customto come to room temperature
  2. concentrationThe reaction was concentrated under reduced pressure
  3. customPurification of the residue on silica gel using 15% ethyl acetate hexanes as the eluent

出典と根拠

ORDレコード
ord-52faffd86cf34fc8b3a6bc8695541e6c
出典データセット
uspto-grants-2009_05
特許番号
US07534894B2

反応ノート

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