Ethylene Glycol → alpha-(2-Methyl-1,3-dioxolan-2-yl)-acetoxyethyl methacrylate

HRID 345965

반응식

HRID 345965 반응식
[C:1]([O:6][CH2:7][CH2:8][O:9][C:10](=[O:15])[CH2:11]C(C)=O)(=[O:5])[C:2]([CH3:4])=[CH2:3].[CH2:16]([OH:19])[CH2:17][OH:18].O.[C:21]1(C)C=CC(S(O)(=O)=O)=C[CH:22]=1.C(C1C=C(C(C)(C)C)C=C(C(C)(C)C)C=1O)C1C=C(C(C)(C)C)C=C(C(C)(C)C)C=1O>C1C=CC=CC=1>[C:1]([O:6][CH:7]([C:21]1([CH3:22])[O:19][CH2:16][CH2:17][O:18]1)[CH2:8][O:9][C:10](=[O:15])[CH3:11])(=[O:5])[C:2]([CH3:4])=[CH2:3]

참가 물질

6

반응물 4

HCID 174Ethylene GlycolHCID 843912,2'-Methylenebis(4,6-di-tert-butylphenol)HCID 888552-(Acetoacetoxy)ethyl methacrylateHCID 521998p-Toluenesulfonic acid monohydrate

생성물 1

HCID 57027692alpha-(2-Methyl-1,3-dioxolan-2-yl)-acetoxyethyl methacrylate

시약·촉매·용매 1

HCID 241Benzene용매

실험 절차

21.4 g (0.1 mol) of 2-acetoacetoxyethyl methacrylate, 18.62 g (0.3 mol) of ethylene glycol and 0.19 g (1 mmol) of p-toluenesulfonic acid monohydrate (1 mol % of p-TsOH) are dissolved in 200 ml of benzene and boiled under reflux under a water separator. 1.7 g (5 mol %) of 2,2,4,6-Ralox® [2.2'-methylene-bis-(4,6-di-tert-butylphenol), a commercial product from Raschig GmbH, Germany] are added as a polymerization inhibitor.

후처리

  1. temperatureunder reflux under a water separator

출처 및 근거

ORD 기록
ord-f0524137bb94467e8a29529c231a5f21
출처 데이터셋
uspto-grants-1991_10
특허 번호
US05059698

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