Ethylene Glycol → 2-[2-(Methylsulfanyl)ethyl]-1,3-dioxolane

HRID 27823

反応式

HRID 27823 の反応式
[CH3:1][S:2][CH2:3][CH2:4][CH:5]=[O:6].[CH2:7](O)[CH2:8][OH:9].C1(C)C=CC(S(O)(=O)=O)=CC=1.C(=O)([O-])[O-].[Na+].[Na+]>O.O1CCOCC1.C1C=CC=CC=1>[CH3:1][S:2][CH2:3][CH2:4][CH:5]1[O:9][CH2:8][CH2:7][O:6]1

参加物

8

反応物 4

HCID 174Ethylene GlycolHCID 6101p-Toluenesulfonic acidHCID 10340Sodium CarbonateHCID 18635Methional

生成物 1

HCID 203986662-[2-(Methylsulfanyl)ethyl]-1,3-dioxolane

試薬・触媒・溶媒 3

HCID 241Benzene溶媒HCID 962Water溶媒HCID 312751,4-Dioxane溶媒

実験手順

1040 g (10 moles) of freshly distilled methional, 650 g (10.5 moles) of ethylene glycol, 400 cc of benzene, 800 cc of dioxan and 10 g of p-toluene sulphonic acid are heated under reflux until the azeotropic entrainment of the water formed during the reaction, which takes 2 hours, is over. The acid medium is then neutralised by the addition of 10 g of dry sodium carbonate, after which the solution is concentrated to dryness in a water pump vacuum.

後処理

  1. customformed during the reaction, which
  2. concentrationafter which the solution is concentrated to dryness in a water pump vacuum

出典と根拠

ORDレコード
ord-b2697c3787e841e894f29b50e8b016e9
出典データセット
uspto-grants-1980_09
特許番号
US04224051

関連ノート

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