N-methyl-2-pyrrolidone → Phthalic Anhydride

HRID 1769214ノート

反応式

HRID 1769214 の反応式
CN1C(=O)CCC1.[OH-].[Na+].Cl[C:11]1[CH:12]=[C:13]([C:20]([O-:22])=[O:21])[C:14](=[CH:18][CH:19]=1)[C:15]([OH:17])=O.[Na+]>[Ti].O>[C:20]1(=[O:21])[O:22][C:15](=[O:17])[C:14]2=[CH:18][CH:19]=[CH:11][CH:12]=[C:13]12

参加物

6

反応物 3

HCID 13387N-methyl-2-pyrrolidoneHCID 14798Sodium HydroxideHCID 2724244Sodium Hydrogen 4-Chlorophthalate

生成物 1

HCID 6811Phthalic Anhydride

試薬・触媒・溶媒 2

HCID 23963Titanium触媒HCID 962Water溶媒2 回

反応条件

温度
250 °C

実験手順

A titanium-lined autoclave was charged with 108 g of a poly(phenylene sulfide) (melt viscosity: 2800 poises) produced by Kureha Chemical Industry Co., Ltd., 500 g of NMP, 7 g of sodium hydroxide, 8.43 g (0.05 mole as S content) of hydrated sodium sulfide and 8.8 g of water. After the autoclave being purged with nitrogen gas, the contents were gradually heated up to 250° C. to react them for 30 minutes, thereby depolymerizing the poly(phenylene sulfide). Thereafter, the contents were cooled to room temperature. Then, 17.8 g (0.08 mole) of sodium hydrogen 4-chlorophthalate and 48.6 g of water were added to the autoclave, and the contents were heated up to 255° C. to react them for 2 hours.

後処理

  1. customproduced by Kureha Chemical Industry Co
  2. customAfter the autoclave being purged with nitrogen gas
  3. customto react them for 30 minutes
  4. temperatureThereafter, the contents were cooled to room temperature
  5. temperaturethe contents were heated up to 255° C.
  6. customto react them for 2 hours

出典と根拠

ORDレコード
ord-d7a85ea8ae024aa38b42ae7e87dc0aad
出典データセット
uspto-grants-1995_01
特許番号
US05380819

反応ノート

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