Sulfuric Acid → 2,2'-Methylenebis(4-ethyl-6-tert-butylphenol)

HRID 2058813

反応式

HRID 2058813 の反応式
[C:1]([C:5]1[CH:10]=[C:9]([CH2:11][CH3:12])[CH:8]=[C:7]([C:13]([CH3:16])([CH3:15])[CH3:14])[C:6]=1[OH:17])([CH3:4])(C)C.S(=O)(=O)(O)O.COC[O:26][CH3:27]>>[CH2:1]([C:4]1[CH:1]=[C:5]([CH2:10][CH3:9])[CH:6]=[C:7]([C:13]([CH3:16])([CH3:15])[CH3:14])[C:27]=1[OH:26])[C:5]1[CH:10]=[C:9]([CH2:11][CH3:12])[CH:8]=[C:7]([C:13]([CH3:14])([CH3:15])[CH3:16])[C:6]=1[OH:17]

参加物

4

反応物 3

HCID 1118Sulfuric AcidHCID 8020DimethoxymethaneHCID 200872,6-Di-tert-butyl-4-ethylphenol

生成物 1

HCID 69282,2'-Methylenebis(4-ethyl-6-tert-butylphenol)収率 57%

実験手順

Into the reactor described in Example 1 hereinbefore there are charged 58.5 g (0.25 g-mol) of 2,6-ditert.butyl4-ethylphenol, 1 g of a concentrated sulfuric acid and 19 g (0.25 g-mol) of methylal are added into the reactor at the temperature of 130° C. over 30 minutes. The reaction mass is treated and 26.2 g of 2,2'-methylene-bis-(4-ethyl-6-tert.butylphenol) are thus obtained which corresponds to 98.9% of the theoretical yield calculated for the reacted 2,6-ditert.butyl-4-ethylphenol (conversion of the latter is 57.5).

後処理

  1. additionare added into the reactor at the temperature of 130° C. over 30 minutes
  2. additionThe reaction mass is treated

出典と根拠

ORDレコード
ord-3e385589a73b4152a7eb5968c742ba9d
出典データセット
uspto-grants-1982_03
特許番号
US04319052

関連ノート

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