Ethyl isobutyrylacetate → HCID 178472908、化合物

HRID 847835

反応式

HRID 847835 の反応式
[N:1]([O-:3])=O.[Na+].[C:5]([CH2:10][C:11]([O:13][CH2:14][CH3:15])=[O:12])(=[O:9])[CH:6]([CH3:8])[CH3:7]>O.C(O)(=O)C>[N:1](=[C:10]([C:5](=[O:9])[CH:6]([CH3:8])[CH3:7])[C:11]([O:13][CH2:14][CH3:15])=[O:12])[OH:3]

参加物

5

反応物 2

HCID 81583Ethyl isobutyrylacetateHCID 23668193Sodium Nitrite

生成物 1

HCID 178472908HCID 178472908、化合物収率 94.4%

試薬・触媒・溶媒 2

HCID 176Acetic Acid溶媒HCID 962Water溶媒2 回

実験手順

A solution of sodium nitrite (43.8 g.) in water (92 ml.) was added dropwise, with stirring, to a solution of ethyl isobutyrylacetate (100.3 g.) in acetic acid (80 ml.) at 0°. After stirring at 0° for 30 minutes then at room temperature for 3 hours, water (100 ml.) was added and the mixture extracted with ether. The extracts were washed with water, saturated sodium bicarbonate solution and water. After drying (CaSO4), the solution was evaporated to give ethyl 2-oximino-4-methyl-3-oxopentanoate (112 g.) as a crude oil.

後処理

  1. waitat room temperature for 3 hours
  2. extractionthe mixture extracted with ether
  3. washThe extracts were washed with water, saturated sodium bicarbonate solution and water
  4. dry with materialAfter drying (CaSO4)
  5. customthe solution was evaporated

出典と根拠

ORDレコード
ord-bf68e4c717244f0c9c3a1febdd2b21d2
出典データセット
uspto-grants-1981_10
特許番号
US04293697

関連ノート

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