4831-62-3

Usage

InChI:InChI=1/C10H9N2O3/c1-7-6-10(12(14)15)8-4-2-3-5-9(8)11(7)13/h2-7H,1H3/q+1

Upstream product

• 91-63-4 2-methylquinoline 
• 1076-28-4 2-methylquinoline N-oxide 
• 7664-93-9 sulfuric acid 

Downstream Products

• 28673-36-1 2-methyl-4-nitroquinoline 
• 41037-32-5 4-chloro-2-methylquinoline 1-oxide 
• 6628-04-2 4-amino-2-methylquinoline 
• 91-63-4 2-methylquinoline 

Relevant academic research and scientific papers

Synthesis method of 4-aminoquinaldine

The invention relates to a synthesis method of 4-aminoquinaldine. The invention discloses the synthesis method of the 4-aminoquinaldine; the method comprises the following steps: enabling 2-methyl quinoline, taken as a starting raw material, to be subjected to a hydrogen peroxide oxidation reaction in acetic acid so as to generate 2-methylquinoline N-oxide; then, carrying out a nitration reactionto generate 2-methyl-4-nitroquinoline N-oxide; after that, illuminating for carrying out a reaction to generate 2-methyl-4-nitroquinoline; producing 2-methyl-4-aminoquinoline N-oxide by means of interaction of ferric trichloride hexahydrate and hydrazine hydrate in ethanol; finally, carrying out a reduction reaction by using iron powder under the action of acetic acid so as to generate the 4-aminoquinaldine. The synthesis method provided by the invention has the beneficial effects that the used raw materials and reagents are low in price and easy to obtain, the synthesis method is simple and feasible, the reaction conditions are mild, and a simple and convenient synthetic route is opened up to the synthesis of the 4-aminoquinaldine.

An unusual de-nitro reduction of 2-substituted-4-nitroquinolines

The treatment of a variety of 2-substituted-4-nitroquinolines with Sn in the presence of concentrated hydrochloric acid in ethanol at 70 °C for 2-4 h afforded unusual de-nitro products 2-substituted-quinolines in good yields.