반응 #346126

반응 방정식

triethanolamine

benzaldehyde

methyl vinyl ketone

→

1-Phenyl-pentane-1,4-dione

용매

dimethylformamide

반응 조건

후처리

1. 1
   workup.ADDITIONare added
2. 2
   여과is filtered

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.

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