Methylhydroquinone → Durohydroquinone

HRID 380779

反応式

HRID 380779 の反応式
[CH3:1]C1C=C(O)C=CC=1O.CC1C(C)=C(C=CC=1O)O.[CH3:20][C:21]1[C:22]([OH:30])=[C:23]([CH3:29])[C:24]([CH3:28])=[C:25]([CH:27]=1)[OH:26]>[Zn].CO>[CH3:20][C:21]1[C:22]([OH:30])=[C:23]([CH3:29])[C:24]([CH3:28])=[C:25]([OH:26])[C:27]=1[CH3:1]

参加物

6

反応物 3

HCID 7253Methylhydroquinone2 回HCID 12785TrimethylhydroquinoneHCID 691002,3-Dimethylhydroquinone

生成物 1

HCID 136346Durohydroquinone

試薬・触媒・溶媒 2

HCID 23994Zinc触媒HCID 887Methanol溶媒

実験手順

Into an autoclave (inner volume: 9 ml, made of SUS 316, equipped with a manometer) were charged 0.092 g of methylhydroquinone, 3.895 g of methanol and 7.2 mg of zinc powders (manufactured by High Purity Chemicals Co.). The reaction was started by elevating the temperature up to 350° C. with sand bath. The pressure during the reaction was 17 MPa. After 2 hours, the autoclave was quickly cooled and the reaction solution was taken out from the autoclave when the temperature was cooled back to the room temperature. The measurement according to the process described above revealed that the conversion of methylhydroquinone was 23% by mole, the selectivity of dimethylhydroquinone was 92% by mole, the selectivity of trimethylhydroquinone was 8% by mole and no tetramethylhydroquinone was produced.

後処理

  1. customequipped with a manometer)
  2. customup to 350° C.
  3. temperaturethe autoclave was quickly cooled

出典と根拠

ORDレコード
ord-2e8d7521a058424daad922cc8427032b
出典データセット
uspto-grants-2001_10
特許番号
US06303801B1

関連ノート

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