Ethylene Glycol → 2-Phenyl-1,3-dioxolane

HRID 1613699ノート

反応式

HRID 1613699 の反応式
[CH:1](=[O:8])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[CH2:9](O)[CH2:10][OH:11].C1(C)C=CC(S(O)(=O)=O)=CC=1.C([O-])([O-])=O.[K+].[K+]>C1(C)C=CC=CC=1>[C:2]1([CH:1]2[O:11][CH2:10][CH2:9][O:8]2)[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1

参加物

6

反応物 4

HCID 174Ethylene GlycolHCID 240BenzaldehydeHCID 6101p-Toluenesulfonic acidHCID 11430Potassium Carbonate

生成物 1

HCID 702932-Phenyl-1,3-dioxolane収率 81.8%

試薬・触媒・溶媒 1

HCID 1140Toluene溶媒

実験手順

A solution of 106.12 g (1.0 mol) of benzaldehyde, 74.48 g (1.2 mol) of ethylene glycol, 500 ml of toluene and a catalytic amount of p-toluenesulfonic acid was heated at reflux in a flask equipped with a Dean-Stark trap for 1 hour and 25 minutes. The solution was cooled, treated with K2CO3, filtered, and distilled to yield 122.9 g of product; bp=163°-5° C./mm.

後処理

  1. temperatureat reflux in a flask
  2. customequipped with a Dean-Stark trap for 1 hour and 25 minutes
  3. temperatureThe solution was cooled
  4. filtrationfiltered
  5. distillationdistilled

出典と根拠

ORDレコード
ord-7a4a2c989c7a4eeab0ff56be7d94093c
出典データセット
uspto-grants-1993_03
特許番号
US05194472

反応ノート

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