Sodium Sulfite → 1-Naphthalenesulfinic acid

HRID 1197617노트

반응식

HRID 1197617 반응식
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

참가 물질

4

반응물 2

HCID 24437Sodium SulfiteHCID 665601-Naphthalenesulfonyl chloride

생성물 1

HCID 108887691-Naphthalenesulfinic acid수율 95.4%

시약·촉매·용매 1

HCID 962Water용매

실험 절차

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.

후처리

  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

출처 및 근거

ORD 기록
ord-5ea453b8da2c4f9fbe4fa5b4b2d8977a
출처 데이터셋
uspto-grants-1994_01
특허 번호
US05276124

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