Water → 4-Ethenylphenyl acetate

HRID 6281

反応式

HRID 6281 の反応式
O.C(O[CH2:6][CH2:7][C:8]1[CH:13]=[CH:12][C:11]([O:14][C:15](=[O:17])[CH3:16])=[CH:10][CH:9]=1)(=O)C.C(OC(=O)C)(=O)C.P(=O)(O)(O)O>C(O)(=O)C>[C:15]([O:14][C:11]1[CH:12]=[CH:13][C:8]([CH:7]=[CH2:6])=[CH:9][CH:10]=1)(=[O:17])[CH3:16]

参加物

6

反応物 4

HCID 962WaterHCID 1004Phosphoric Acid2 回HCID 7918Acetic AnhydrideHCID 111954024-(2-Acetoxy-ethyl)phenyl Acetate

生成物 1

HCID 758214-Ethenylphenyl acetate

試薬・触媒・溶媒 1

HCID 176Acetic Acid溶媒

実験手順

A flask heated by hot oil was fitted with a chilled water overhead condenser, a thermowell with a thermocouple, an overhead stirrer and a vacuum pump. Crude APMC-Ether (20 grams) containing 78.2 weight percent APMC-Ether, 7.2 weight percent APMC and 3.9 weight percent 4-acetoxyphenylmethylcarbinol acetate (sometimes referred to herein as "APMC-Acetate") was mixed in another flask with six (6.0) grams of acetic anhydride. Phosphoric acid (0.022 grams) having a concentration of 85 weight percent that corresponds to 0.32 moles of pure phosphoric acid per 100 moles of APMC-Ether was added to said mixture. The resultant mixture was fed to the hot flask at a rate of 1.2 grams per minute. The hot oil temperature was maintained at about 220° C. to about 230° C. and the reaction mass temperature in the hot flask was maintained at about 180° C. to about 200° C. The vacuum pump maintained a vacuum in the flask at about 80 mm Hg. 4-acetoxystyrene and acetic acid were produced in the hot flask.

後処理

  1. temperatureA flask heated by hot oil
  2. additionwas added
  3. temperatureThe hot oil temperature was maintained at about 220° C. to about 230° C.
  4. temperaturethe reaction mass temperature in the hot flask was maintained at about 180° C. to about 200° C
  5. temperatureThe vacuum pump maintained a vacuum in the flask at about 80 mm Hg

出典と根拠

ORDレコード
ord-6c29b27eab4d4e1eb2642d9e68152ba2
出典データセット
uspto-grants-1993_09
特許番号
US05247124

関連ノート

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