반응 #53075

반응 방정식

1-acetyl-5-nitro-2-indolinone

trimethyl orthobenzoate

→

1-acetyl-3-(1-methoxy-1-phenyl-methylidene)-5-nitro-2-indo-linone

용매

acetic anhydride

반응 조건

후처리

1. 1
   온도After cooling it
2. 2
   기타is evaporated down to half the quantity
3. 3
   workup.ADDITIONdiluted with ether/petroleum ether
4. 4
   여과filtered
5. 5
   기타dried

실험 절차

30.0 g (0.137 mol) of 1-acetyl-5-nitro-2-indolinone are dissolved in 200 ml of acetic anhydride and after the addition of 50.0 g (0.274 mol) of trimethyl orthobenzoate stirred for 3 hours at 100° C. After cooling it is evaporated down to half the quantity, diluted with ether/petroleum ether, the precipitate is suction filtered and dried.

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