Methacrylic Acid → 1-Ethoxyethyl Methacrylate (stabilized with MEHQ)

HRID 459061

反応式

HRID 459061 の反応式
[C:1]([OH:6])(=[O:5])[C:2]([CH3:4])=[CH2:3].O.C1(C)C=CC(S(O)(=O)=O)=CC=1.[CH:19]([O:21][CH2:22][CH3:23])=[CH2:20]>>[C:1]([O:6][CH:19]([O:21][CH2:22][CH3:23])[CH3:20])(=[O:5])[C:2]([CH3:4])=[CH2:3]

参加物

4

反応物 3

HCID 4093Methacrylic AcidHCID 8023Ethyl vinyl etherHCID 521998p-Toluenesulfonic acid monohydrate

生成物 1

HCID 201933451-Ethoxyethyl Methacrylate (stabilized with MEHQ)収率 20%

実験手順

To a 500-mL, 3-necked round bottomed flask equipped with a thermocouple temperature monitor, nitrogen inlet and a magnetic stirrer was added 300 mL of ethyl vinyl ether and 25.0 g (0.29 mol) of methacrylic acid. The mixture was cooled in an ice bath and 0.2 g (0.001 mol) of p-toluenesulfonic acid monohydrate was added. The flask was removed from the ice bath and stirred for 4 hours at which time the mixture was filtered through a bed of sodium carbonate and the ethyl vinyl ether removed on a rotary evaporator. The resulting oil was distilled twice from sodium carbonate at reduced pressure to yield 8.9 g (20%) of the title compound as a clear, colorless oil.

後処理

  1. customTo a 500-mL, 3-necked round bottomed flask equipped with a thermocouple temperature monitor, nitrogen inlet and a magnetic stirrer
  2. temperatureThe mixture was cooled in an ice bath
  3. customThe flask was removed from the ice bath
  4. filtrationwas filtered through a bed of sodium carbonate
  5. customthe ethyl vinyl ether removed on a rotary evaporator
  6. distillationThe resulting oil was distilled twice from sodium carbonate at reduced pressure

出典と根拠

ORDレコード
ord-931398743fc740fa9d5517de408af090
出典データセット
uspto-grants-2007_03
特許番号
US07193023B2

関連ノート

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