Butylene glycol diacetate → Acetic Acid

HRID 596150

反応式

HRID 596150 の反応式
[C:1]([O:4]CC[CH2:7][CH2:8][O:9][C:10](=O)[CH3:11])(=[O:3])[CH3:2].C(OC(OC(=O)C)CCC)(=O)C>>[O:9]1[CH2:8][CH2:7][CH2:11][CH2:10]1.[C:1]([OH:4])(=[O:3])[CH3:2]

参加物

4

反応物 2

HCID 69410Butylene glycol diacetateHCID 182019Butanediol, diacetate

生成物 2

HCID 176Acetic Acid収率 93%HCID 8028Tetrahydrofuran収率 90%

実験手順

The tube reactor, charged with 110 grams of alumina catalyst (1/8 inch pellets, Harshaw Al-0104T), is maintained at 250° C while 25.0 grams of 1,4-butanediol diacetate and 50 ml. of water are admitted to the evaporator simultaneously from different addition funnels over a 20 minute period. The aqueous effluent collected contains tetrahydrofuran, acetic acid, and about 10% of the original diacetate. The mixture is again taken through the tube. The effluent from this second pass contains, as found by quantitative glpc analysis, 0.3 grams of residual butanediol diacetate (1% unconverted), 9.2 grams of tetrahydrofuran (90% yield), and 15.9 grams of acetic acid (93% yield).

後処理

  1. additionThe tube reactor, charged with 110 grams of alumina catalyst (1/8 inch pellets, Harshaw Al-0104T)
  2. customof water are admitted to the evaporator simultaneously from different addition funnels over a 20 minute period
  3. customThe aqueous effluent collected

出典と根拠

ORDレコード
ord-1734b51cfb9440c7b29b8f0c499a476c
出典データセット
uspto-grants-1977_03
特許番号
US04010171

関連ノート

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