反応 #1340566

反応方程式

phenylglyoxal

9,10-diaminophenanthrene

→

dibenzo[f,h]quinoxaline

収率 92.0%

2-Phenyldibenzo[f,h]quinoxaline

収率 92.0%

溶媒

ethanol

反応条件

後処理

1. 1
   温度The solution was refluxed for 7 hours
2. 2
   その他to be reacted
3. 3
   その他The white power precipitated through the reaction
4. 4
   ろ過was filtered
5. 5
   洗浄The residue was washed with ethanol

実験手順

First, 2.16 g of phenylglyoxal and 3.36 g of 9,10-diaminophenanthrene were dissolved in a solvent of 100 mL of dehydrated ethanol under a nitrogen atmosphere. The solution was refluxed for 7 hours to be reacted. The white power precipitated through the reaction was filtered. The residue was washed with ethanol and then ether to give a dibenzo[f,h]quinoxaline derivative, Hdbq-P, which was the target substance (yield: 92%). Synthesis scheme of Step 1 is shown in (a-1) below.

出典