Methyl Chloride → 1,2,3,4-Tetramethylcyclopentadiene

HRID 265833

反応式

HRID 265833 の反応式
[OH-].[Na+].[CH3:3][C:4]1[C:5]([CH3:10])=[C:6]([CH3:9])[CH2:7][CH:8]=1.[CH3:11]Cl>[Cl-].C([N+](CCCC)(CCCC)C)CCC>[CH3:3][C:4]1[CH2:8][C:7]([CH3:11])=[C:6]([CH3:9])[C:5]=1[CH3:10]

参加物

5

反応物 3

HCID 6327Methyl ChlorideHCID 14798Sodium HydroxideHCID 1380631,2,3-Trimethylcyclopentadiene

生成物 1

HCID 1381631,2,3,4-Tetramethylcyclopentadiene

試薬・触媒・溶媒 1

HCID 91822Tributylmethylammonium chloride触媒

実験手順

A stainless steel autoclave is charged with 50% sodium hydroxide (57 g, 0.7 mole), 80 percent tri-n-butylmethylammonium chloride (1 g, 0.0034 mole), and trimethylcyclopentadiene (mixed isomers, 32.4 g, 0.3 mole). Methyl chloride (15.7 g, 0.31 mole) is added at 60 psi and 25°-30° C. After reaction completion, the organic product phase is separated from the lower aqueous phase containing excess base and sodium chloride slurry. The mixture of crude tetramethylcyclopentadienes is subject to pyrolysis as described in Example 1C to obtain 1,2,3,4-tetramethylcyclopentadiene.

後処理

  1. customAfter reaction completion
  2. customthe organic product phase is separated from the lower aqueous phase
  3. additioncontaining excess base and sodium chloride slurry
  4. additionThe mixture of crude tetramethylcyclopentadienes

出典と根拠

ORDレコード
ord-277c4704117e46329f891fd119a363b2
出典データセット
uspto-grants-1997_07
特許番号
US05648578

関連ノート

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