Phenazine, 2-broMo- synthesis
- Product Name:Phenazine, 2-broMo-
- CAS Number:3331-28-0
- Molecular formula:C12H7BrN2
- Molecular Weight:259.1
Yield:3331-28-0 92.6%
Reaction Conditions:
with sulfuric acid in ethanol at 65; for 4 h;
Steps:
1 Example 1 Synthesis of 2-bromophenazine
Add to 250ml three bottles4-bromo-o-phenylenediamine, 3.91 g (molecular weight: 186, 0.021 mol)O-benzoquinone 2.27 g (molecular weight 108, 0.021 mol),Ethanol (40 ml),Under stirring conditions,3 min dropping 0.2 grams of concentrated sulfuric acid (concentration of 98%),The reaction was carried out at 65 ° C for 4 hours,After the reaction,Cooled to room temperature,Filtration, followed by ethanol,Petroleum ether washing,To give the intermediate compound2-bromophenazine 5.02 g (molecular weight 258),Yield 92.6%.
References:
CN106554323,2017,A Location in patent:Paragraph 0064; 0065; 0066
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