Hydroquinone → Durohydroquinone

HRID 380776

反応式

HRID 380776 の反応式
[C:1]1(C=CC(O)=CC=1)O.CC1C=C(O)C=CC=1O.CC1C(C)=C(C=CC=1O)O.[CH3:28][C:29]1[C:30]([OH:38])=[C:31]([CH3:37])[C:32]([CH3:36])=[C:33]([CH:35]=1)[OH:34]>[O-2].[O-2].[Mn+4].CO>[CH3:28][C:29]1[C:30]([OH:38])=[C:31]([CH3:37])[C:32]([CH3:36])=[C:33]([OH:34])[C:35]=1[CH3:1]

参加物

7

反応物 4

HCID 785Hydroquinone2 回HCID 7253MethylhydroquinoneHCID 12785TrimethylhydroquinoneHCID 691002,3-Dimethylhydroquinone

生成物 1

HCID 136346Durohydroquinone

試薬・触媒・溶媒 2

HCID 178418406HCID 178418406、化合物触媒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 0.105 g of hydroquinone (manufactured by Wako Pure Chemical Ind., Ltd.), 3.602 g of methanol and 1.3 mg of manganese dioxide (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 15 MPa. After 8 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 hydroquinone was 41% by mole, the selectivity of monomethylhydroquinone was 43% by mole, the selectivity of dimethylhydroquinone was 13% by mole and the selectivity of trimethylhydroquinone was 1% by mole. 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-5abd543ba6784fc094a7622f13858cfe
出典データセット
uspto-grants-2001_10
特許番号
US06303801B1

関連ノート

読み込み中…