Sulfuric Acid → 4-Amino-1,3-benzenedisulfonic acid

HRID 1073355

반응식

HRID 1073355 반응식
[S:1](=[O:5])(=[O:4])([OH:3])O.[NH2:6][C:7]1[CH:12]=[CH:11][CH:10]=[CH:9][CH:8]=1>>[NH2:6][C:7]1[C:12]([S:1]([OH:5])(=[O:4])=[O:3])=[CH:11][C:10]([S:1]([OH:3])(=[O:5])=[O:4])=[CH:9][CH:8]=1

참가 물질

3

반응물 2

HCID 1118Sulfuric AcidHCID 6115Aniline

생성물 1

HCID 673044-Amino-1,3-benzenedisulfonic acid

반응 조건

온도
200 °C

실험 절차

225.5 g (2.3 mol) of 100% strength sulphuric acid were added to 257.0 g (2.76 mol) of aniline in 460 ml of ortho oil. The suspension obtained was heated at 200° C. for 2.5 hours in a 1.3 1 enamel autoclave. After cooling, the mixture was filtered off with suction and the filter residue was dried. The 475.6 g of solid contained 80.7% of p-sulphanilic acid in addition to unchanged anilinium hydrogensulphate, based on the excess sulphuric acid employed. Aniline-2,4-disulphonic acid was not formed.

후처리

  1. customThe suspension obtained
  2. temperatureAfter cooling
  3. filtrationthe mixture was filtered off with suction
  4. customthe filter residue was dried
  5. additionin addition to unchanged anilinium hydrogensulphate

출처 및 근거

ORD 기록
ord-ca6a5238a0aa4cb68d5a645a169b8984
출처 데이터셋
uspto-grants-1990_11
특허 번호
US04968835

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