Sulfuric Acid → chrysanthemic acid d-trans-form

HRID 267571

반응식

HRID 267571 반응식
CC[O:3][C:4]([CH:6]1[C:8]([CH3:10])([CH3:9])[CH:7]1[CH:11]=[C:12]([CH3:14])[CH3:13])=[O:5].S(=O)(=O)(O)O>>[CH3:13][C:12]([CH3:14])=[CH:11][C@H:7]1[C:8]([CH3:9])([CH3:10])[C@@H:6]1[C:4]([OH:5])=[O:3]

참가 물질

3

반응물 2

HCID 1118Sulfuric AcidHCID 7334Ethyl chrysanthemate

생성물 1

HCID 16747chrysanthemic acid d-trans-form수율 80.5%

실험 절차

The water layer was made acidic with sulfuric acid and extracted with toluene (80 g) two times. The toluene layer was washed and evaporated, and the residue was distilled under reduced pressure to give trans-chrysanthemic acid (47.1 g; trans-isomer, 80.5 %). B.P. 110° to 114°C/2 mmHg.

후처리

  1. extractionextracted with toluene (80 g) two times
  2. washThe toluene layer was washed
  3. customevaporated
  4. distillationthe residue was distilled under reduced pressure

출처 및 근거

ORD 기록
ord-3556e4eb9bea4bf1a3c659a1dcdfbbb2
출처 데이터셋
uspto-grants-1976_03
특허 번호
US03943167

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