ChemicalBook CAS DataBase List Phenazine, 2-broMo-

Phenazine, 2-broMo- synthesis

12synthesis methods

Product Name:Phenazine, 2-broMo-
CAS Number:3331-28-0
Molecular formula:C12H7BrN2
Molecular Weight:259.1

583-63-1 Synthesis

583-63-1
19 suppliers
inquiry

1575-37-7
368 suppliers
$10.00/1g

3331-28-0
25 suppliers
inquiry

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