Diisopropylethylamine → tert-Butyl [3-({2-[(tert-butoxycarbonyl)amino]-5-nitrophenyl}ethynyl)phenyl]carbamate

HRID 541747

反応式

HRID 541747 の反応式
[C:1]([C:3]1[CH:4]=[C:5]([NH:9][C:10](=[O:16])[O:11][C:12]([CH3:15])([CH3:14])[CH3:13])[CH:6]=[CH:7][CH:8]=1)#[CH:2].I[C:18]1[CH:23]=[C:22]([N+:24]([O-:26])=[O:25])[CH:21]=[CH:20][C:19]=1[NH:27][C:28](=[O:34])[O:29][C:30]([CH3:33])([CH3:32])[CH3:31].C(N(CC)C(C)C)(C)C>C1COCC1.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>[C:30]([O:29][C:28]([NH:27][C:19]1[CH:20]=[CH:21][C:22]([N+:24]([O-:26])=[O:25])=[CH:23][C:18]=1[C:2]#[C:1][C:3]1[CH:4]=[C:5]([NH:9][C:10](=[O:16])[O:11][C:12]([CH3:13])([CH3:15])[CH3:14])[CH:6]=[CH:7][CH:8]=1)=[O:34])([CH3:33])([CH3:31])[CH3:32]

参加物

7

反応物 3

HCID 81531DiisopropylethylamineHCID 7098713Tert-butyl 4-nitro-2-iodophenylcarbamateHCID 11275982tert-Butyl 3-ethynylphenylcarbamate

生成物 1

HCID 57962078tert-Butyl [3-({2-[(tert-butoxycarbonyl)amino]-5-nitrophenyl}ethynyl)phenyl]carbamate収率 85%

試薬・触媒・溶媒 3

HCID 24350Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)触媒HCID 178418476HCID 178418476、化合物触媒HCID 8028Tetrahydrofuran溶媒

反応条件

温度
20 °C

実験手順

A solution of tert-butyl (3-ethynylphenyl)carbamate (12.7 g, 58.5 mmol), tert-butyl (2-iodo-4-nitrophenyl)carbamate (14.2 g, 39.0 mmol), bis(triphenylphosphine)palladium(II) chloride (1.37 g, 1.95 mmol), and copper(I) iodide (371 mg, 1.95 mmol) in THF (200 mL) was treated with N,N-diisopropylethylamine (7.47 mL, 42.9 mmol) dropwise and stirred at 20° C. overnight. The reaction mixture was concentrated and diluted with water (200 mL) and ethyl acetate (200 mL). The organic layer was separated, washed with brine, dried with sodium sulfate, filtered, and concentrated to give a yellow/brown solid which was washed with ethyl acetate to give the desired product as light yellow solid (15 g, 85%). LCMS calculated for C24H27N3O6Na (M+Na)+: m/z=476.2.

後処理

  1. concentrationThe reaction mixture was concentrated
  2. additiondiluted with water (200 mL) and ethyl acetate (200 mL)
  3. customThe organic layer was separated
  4. washwashed with brine
  5. dry with materialdried with sodium sulfate
  6. filtrationfiltered
  7. concentrationconcentrated
  8. customto give a yellow/brown solid which
  9. washwas washed with ethyl acetate

出典と根拠

ORDレコード
ord-885e2872087d49939c7838011470e71f
出典データセット
uspto-grants-2014_10
特許番号
US08871753B2

関連ノート

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