Benzaldehyde → 1-Phenyl-1,4-pentanedione

HRID 258944

반응식

HRID 258944 반응식
[CH:1](=[O:8])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[CH:9]([C:11]([CH3:13])=[O:12])=[CH2:10].N(CCO)(CCO)CCO>CN(C)C=O>[C:2]1([C:1](=[O:8])[CH2:10][CH2:9][C:11](=[O:12])[CH3:13])[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1

참가 물질

5

반응물 3

HCID 240BenzaldehydeHCID 6570Methyl vinyl ketoneHCID 7618Triethanolamine

생성물 1

HCID 1363711-Phenyl-1,4-pentanedione

시약·촉매·용매 1

HCID 6228Dimethylformamide용매

실험 절차

Following the description in Example 1, 5.1 g (approx. 0.02 mol) of Cat. 3, 21.2 g (0.2 mol) of distilled benzaldehyde, 350 ml of dimethylformamide and 14 g (0.2 mol) of stabilized methyl vinyl ketone are introduced into a 500 ml three-necked flask. After displacing the air by pure nitrogen, the mixture is brought to a temperature of 80° C and 14.9 g (0.1 mol) of triethanolamine are added. The mixture is then stirred for 15 hours at the same temperature. Working up takes place as in Example 11 except that the mixture is filtered after having been taken up in chloroform. 1-Phenyl-pentane-1,4-dione is obtained.

후처리

  1. additionare added
  2. filtrationis filtered

출처 및 근거

ORD 기록
ord-34a209383a6b4391bde49ecd8a0da465
출처 데이터셋
uspto-grants-1977_07
특허 번호
US04035395

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