2-Methyl-3-butyn-2-ol → HCID 58266403、化合物

HRID 1888494ノート

反応式

HRID 1888494 の反応式
Br[C:2]1[CH:24]=[N:23][C:5]2[N:6]([CH2:15][O:16][CH2:17][CH2:18][Si:19]([CH3:22])([CH3:21])[CH3:20])[C:7]3[CH:12]=[N:11][C:10]([C:13]#[N:14])=[CH:9][C:8]=3[C:4]=2[CH:3]=1.[CH3:25][C:26]([OH:30])([C:28]#[CH:29])[CH3:27]>O1CCOCC1.C(Cl)Cl.O.[Cu]I.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>[OH:30][C:26]([CH3:27])([CH3:25])[C:28]#[C:29][C:2]1[CH:24]=[N:23][C:5]2[N:6]([CH2:15][O:16][CH2:17][CH2:18][Si:19]([CH3:22])([CH3:21])[CH3:20])[C:7]3[CH:12]=[N:11][C:10]([C:13]#[N:14])=[CH:9][C:8]=3[C:4]=2[CH:3]=1

参加物

8

反応物 2

HCID 82582-Methyl-3-butyn-2-olHCID 58266568HCID 58266568、化合物

生成物 1

HCID 58266403HCID 58266403、化合物収率 124.2%

試薬・触媒・溶媒 5

HCID 24350Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)触媒HCID 178418397HCID 178418397、化合物触媒HCID 962Water溶媒HCID 6344Dichloromethane溶媒HCID 312751,4-Dioxane溶媒

反応条件

温度
105 °C

実験手順

In a flame dried flask, a mixture of 3-bromo-9-(2-trimethylsilanylethoxymethyl)-dipyrido[2,3-b;4′,3′-d]pyrrole-6-carbonitrile (203 mg, 0.503 mmol) and copper (I) iodide (9.58 mg, 50.3 μmol) in 1,4-dioxane (5.3 mL) was degassed and flushed with nitrogen. Tetrakis(triphenylphosphine)palladium(0) (58.1 mg, 50.3 μmol) and 2-methyl-3-butyn-2-ol (244 μL, 2.52 mmol) were added and the reaction mixture was degassed, purged with nitrogen, and heated at 105° C. for 70 min. The cooled reaction mixture was diluted with DCM and water, the layers separated, and the aqueous phase extracted into DCM. The combined organic phase was dried over sodium sulfate and concentrated in vacuo. The resultant residue was dissolved in EtOAc and absorbed onto silica gel for purification by flash chromatography (silica, 25 g column, Biotage, 1-100% EtOAc in heptane) to afford further title compound as a white-yellow solid (254 mg, 124%). The solid was used without further purification. 1H NMR (DMSO-D6, 400 MHz): 9.33 (s, 1H), 8.98 (s, 1H), 8.91 (d, J=1.9 Hz, 1H), 8.76 (d, J=1.9 Hz, 1H), 6.03 (s, 2H), 5.55 (s, 1H), 3.57 (t, J=7.9 Hz, 2H), 1.51 (s, 6H), 0.82 (t, J=8.0 Hz, 2H), −0.16 (s, 9H).

後処理

  1. customIn a flame dried flask
  2. customwas degassed
  3. customflushed with nitrogen
  4. customthe reaction mixture was degassed
  5. custompurged with nitrogen
  6. customThe cooled reaction mixture
  7. customthe layers separated
  8. extractionthe aqueous phase extracted into DCM
  9. dry with materialThe combined organic phase was dried over sodium sulfate
  10. concentrationconcentrated in vacuo
  11. dissolutionThe resultant residue was dissolved in EtOAc
  12. customabsorbed onto silica gel for purification by flash chromatography (silica, 25 g column, Biotage, 1-100% EtOAc in heptane)

出典と根拠

ORDレコード
ord-c923111efe8f4dfaacfbd49883ecfefc
出典データセット
uspto-grants-2013_08
特許番号
US08501765B2

反応ノート

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