Sodium Sulfite → 1-Naphthalenesulfinic acid

HRID 1197922ノート

反応式

HRID 1197922 の反応式
S([O-])([O-])=O.[Na+].[Na+].[C:7]1([S:17](Cl)(=[O:19])=[O:18])[C:16]2[C:11](=[CH:12][CH:13]=[CH:14][CH:15]=2)[CH:10]=[CH:9][CH:8]=1>O>[C:7]1([S:17]([OH:19])=[O:18])[C:16]2[C:11](=[CH:12][CH:13]=[CH:14][CH:15]=2)[CH:10]=[CH:9][CH:8]=1

参加物

4

反応物 2

HCID 24437Sodium SulfiteHCID 665601-Naphthalenesulfonyl chloride

生成物 1

HCID 108887691-Naphthalenesulfinic acid収率 95.4%

試薬・触媒・溶媒 1

HCID 962Water溶媒

実験手順

189 g of sodium sulfite was dissolved in 600 ml of water, the solution was warmed at a temperature ranging from 60° to 70° C., 68 g of 1-naphthalenesulfonyl chloride was added and then the mixture was reacted at a temperature ranging from 50° to 60° C. for 5 hours. Insolubles were filtered off, the temperature of the reaction solution was brought back to room temperature and the solution was acidified by addition of conc. hydrochloric acid. The resulting precipitates were collected by filtration to give 55 g of 1-naphthalene sulfinic acid.

後処理

  1. temperaturethe solution was warmed at a temperature
  2. customranging from 60° to 70° C.
  3. customthe mixture was reacted at a temperature
  4. filtrationInsolubles were filtered off
  5. customwas brought back to room temperature
  6. additionthe solution was acidified by addition of conc. hydrochloric acid
  7. customThe resulting precipitates
  8. filtrationwere collected by filtration

出典と根拠

ORDレコード
ord-b04c8d235e2a42b5a0c4a3337ea9468d
出典データセット
uspto-grants-1994_01
特許番号
US05278273

反応ノート

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