Sulfuric Acid → HCID 12674764, 화합물

HRID 67109노트

반응식

HRID 67109 반응식
[OH:1][CH2:2][CH2:3][N:4]1[CH:8]=[CH:7][CH:6]=[CH:5]1.S(=O)(=O)(O)O.N1C=CC=C1.[C:19](Cl)(=[O:21])[CH3:20].C(OC(=O)C)(=O)C>C(O)(=O)C>[C:19]([O:1][CH2:2][CH2:3][N:4]1[CH:8]=[CH:7][CH:6]=[CH:5]1)(=[O:21])[CH3:20]

참가 물질

7

반응물 5

HCID 1118Sulfuric AcidHCID 6367Acetyl chloride2회HCID 7918Acetic Anhydride2회HCID 8027PyrroleHCID 109754381-(2-Hydroxyethyl)pyrrole2회

생성물 1

HCID 12674764HCID 12674764, 화합물

시약·촉매·용매 1

HCID 176Acetic Acid용매

실험 절차

Once the 1-(2-hydroxyethyl)pyrrole is obtained, it is esterified by any suitable means known in the art. Suitably, acetic acid is reacted with the 1-(2-hydroxyethyl)pyrrole in the presence of a strong acid such as sulfuric acid and heating the reaction mixture sufficiently to distill off the water that is formed as a result of the reaction. Preferably however, the pyrrole is reacted with acetyl chloride or acetic anhydride in a suitable solvent wherein there is a molar excess of the acetyl chloride or acetic anhydride. The reaction takes place at room temperature and will be completed in a relatively short period of time, with only an hour or two at the most being required for the reaction to reach completion. The 1-(2-acetoxyethyl)pyrrole is then isolated and purified by any means known in the art such as extraction with a suitable organic solvent and removal of the solvent to yield the desired compound represented by Formula (III).

후처리

  1. temperatureheating the reaction mixture sufficiently
  2. distillationto distill off the water that
  3. customis formed as
  4. customa result of the reaction
  5. customat room temperature
  6. waitwill be completed in a relatively short period of time, with only an hour
  7. customtwo at the most being required for the reaction

출처 및 근거

ORD 기록
ord-f770c4c3d4424493bd96bf077e2c6ba2
출처 데이터셋
uspto-grants-1982_08
특허 번호
US04344943

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