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

HRID 265833

반응식

HRID 265833 반응식
[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]

참가 물질

5

반응물 3

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

생성물 1

HCID 1381631,2,3,4-Tetramethylcyclopentadiene

시약·촉매·용매 1

HCID 91822Tributylmethylammonium chloride촉매

실험 절차

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.

후처리

  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

출처 및 근거

ORD 기록
ord-277c4704117e46329f891fd119a363b2
출처 데이터셋
uspto-grants-1997_07
특허 번호
US05648578

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