Propyne → 2-isopropoxy-3-methoxy-6-(prop-1-ynyl)-N-trifluoroacetylaniline

HRID 529262

反応式

HRID 529262 の反応式
I[C:2]1[C:7]([NH:8][C:9](=[O:14])[C:10]([F:13])([F:12])[F:11])=[C:6]([O:15][CH:16]([CH3:18])[CH3:17])[C:5]([O:19][CH3:20])=[CH:4][CH:3]=1.[CH:21](N(CC)C(C)C)([CH3:23])[CH3:22].C#CC>CN(C=O)C.[Cu]I>[CH:16]([O:15][C:6]1[C:5]([O:19][CH3:20])=[CH:4][CH:3]=[C:2]([C:22]#[C:21][CH3:23])[C:7]=1[NH:8][C:9](=[O:14])[C:10]([F:13])([F:12])[F:11])([CH3:18])[CH3:17]

参加物

6

反応物 3

HCID 6335PropyneHCID 81531DiisopropylethylamineHCID 866376576-iodo-2-isopropoxy-3-methoxy-N-trifluoroacetylaniline

生成物 1

HCID 866376562-isopropoxy-3-methoxy-6-(prop-1-ynyl)-N-trifluoroacetylaniline収率 79%

試薬・触媒・溶媒 2

HCID 24350Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)触媒HCID 6228Dimethylformamide溶媒

実験手順

A mixture of the product of Step B (0.275 g; 0.681 mmol), Cl2Pd(PPh3)2 (0.058 g; 0.083 mmol); CuI (0.025 g; 0.13 μmol), anhydrous N,N-diisopropyl ethylamine (1 ml) in anhydrous DMF (5 ml) was cooled to −40° C., degassed under reduced pressure and saturated with dry N2. To it, propyne gas (0.5 g; 12.4 mmol) was added at −40° C. The reaction flask was sealed with septum and allowed to warm up to room temperature and stirred overnight at room temperature than evaporated to dryness under reduced pressure. The residue was purified by flash column chromatography (SiO2, hexane/ethyl acetate, 8:2) to give the title compound (0.171 g; 79% yield) as creamy solid. 1H-NMR (CDCl3) 1.21 (d, 6H, J=6.16 Hz); 2.00 (s, 3H); 3.86 (s, 3H); 4.43 (m, 1H, J=6.16 Hz); 6.79 (d, 1H, J=8.67 Hz); 7.14 (d, 1H, J=8.67 Hz); 7.72 (broad s, 1H).

後処理

  1. customdegassed under reduced pressure and saturated with dry N2
  2. customThe reaction flask was sealed with septum
  3. customthan evaporated to dryness under reduced pressure
  4. customThe residue was purified by flash column chromatography (SiO2, hexane/ethyl acetate, 8:2)

出典と根拠

ORDレコード
ord-aae6068c488e416faa0244a1bdca6387
出典データセット
uspto-grants-2016_05
特許番号
US09346842B2

関連ノート

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