Isobutanol → 1,1-Dimethoxy-4-dimethylaminobut-3-en-2-one

HRID 548905

反応式

HRID 548905 の反応式
CO[CH:3](OC)[N:4]([CH3:6])[CH3:5].[CH3:9][O:10][C:11]([O:15][CH3:16])(C)[CH:12]=[O:13].[CH2:17](O)C(C)C>>[CH3:5][N:4]([CH3:6])/[CH:3]=[CH:17]/[C:12](=[O:13])[CH:11]([O:15][CH3:16])[O:10][CH3:9]

参加物

4

反応物 3

HCID 6560IsobutanolHCID 78373Dimethylformamide dimethyl acetalHCID 75681812,2-Dimethoxypropanal

生成物 1

HCID 57095801,1-Dimethoxy-4-dimethylaminobut-3-en-2-one収率 48%

反応条件

温度
100 °C

実験手順

A mixture of N,N-dimethylformamide dimethylacetal (86.0 g, 584 mmol) and methylglyoxal 1,1-dimethylacetal (85.6 g, 724 mmol) in isobutanol (500 mL) was heated at 100° C. overnight. The mixture was then cooled and evaporated. Purification by distillation afforded the title product (49.9 g, 48%) as an orange liquid. Bp 123-124° C. at 0.9 mbar. MS: m/e=174.4 [M+H]+.

後処理

  1. temperatureThe mixture was then cooled
  2. customevaporated
  3. customPurification
  4. distillationby distillation

出典と根拠

ORDレコード
ord-8abc29bd78c540a09b7ed8c6fde5e8f4
出典データセット
uspto-grants-2011_05
特許番号
US07943619B2

関連ノート

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