Methacrylic Acid → Methyl 2-methylprop-2-enoate;2-methylprop-2-enoic acid

HRID 485647

反応式

HRID 485647 の反応式
[C:1]([O:6][CH3:7])(=[O:5])[C:2]([CH3:4])=[CH2:3].[C:8]([OH:13])(=[O:12])[C:9]([CH3:11])=[CH2:10].C(OOC(=O)C1C=CC=CC=1)(=O)C1C=CC=CC=1>O1CCOCC1>[C:1]([O:6][CH3:7])(=[O:5])[C:2]([CH3:4])=[CH2:3].[C:8]([OH:13])(=[O:12])[C:9]([CH3:11])=[CH2:10]

参加物

5

反応物 3

HCID 4093Methacrylic AcidHCID 6658Methyl MethacrylateHCID 7187Benzoyl Peroxide

生成物 1

HCID 65310Methyl 2-methylprop-2-enoate;2-methylprop-2-enoic acid

試薬・触媒・溶媒 1

HCID 312751,4-Dioxane溶媒

反応条件

温度
80 °C

実験手順

9.0 g of methyl methacrylate, 0.86 g of methacrylic acid (charging ratio by mole=9/1), and 50 mg of benzoyl peroxide were dissolved in 50 g of dioxane, followed by heating the solution at 80° C. for 4 hours with agitation while purging with nitrogen and subsequently charging into a large amount of water. The resulting polymer was dissolved in a small amount of acetone and dropped into a large amount of a methanol/water mixture for re-precipitation, followed by drying in vacuo to obtain methyl methacrylate/methacrylic acid copolymer (molecular weight≈5,000).

後処理

  1. customwhile purging with nitrogen
  2. dissolutionThe resulting polymer was dissolved in a small amount of acetone
  3. additiondropped into a large amount of a methanol/water mixture for re-precipitation
  4. customby drying in vacuo

出典と根拠

ORDレコード
ord-d6ac13ca28234d90bbc1490b4781d099
出典データセット
uspto-grants-1985_08
特許番号
US04537855

関連ノート

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