81452-39-3

Upstream product

• 2144-02-7 2-naphthaldazine 
• 28867-76-7 benzaldehyde benzylidenehydrazone 
• 81452-41-7 N-[1-Naphthalen-2-yl-meth-(Z)-ylidene]-N'-[1-phenyl-meth-(E)-ylidene]-hydrazine 

Downstream Products

• 36724-38-6 1,4-Diphenylbenzophthalazin 

Relevant academic research and scientific papers

Phenyl substituted pyridazine structure unit containing compounds and methods for their preparation and use

The invention discloses compounds containing phenyl substituted pyridazine structural unit, and a preparation method and application thereof. The structural general formula of the compounds containing phenyl substituted pyridazine structural unit is disclosed as Formula I. The compounds disclosed as Formula I have proper nuclear magnetic detection; and in order to solve the problems of less research on near-infrared materials and deficiency in high-efficiency high-stability near-infrared luminescent materials at present stage, the invention provides a series of near-infrared luminescent materials containing phenyl substituted pyridazine structure. The compounds have the advantages of accessible raw material, simple preparation process and high overall yield, and have important application value for researching development and application of near-infrared materials.

NEW SYNTHETIC APPROACH TO BENZO(f)- AND BENZO(g)-PHTHALAZINES

Benzo(f)- and benzo(g)-phthalazine derivatives were synthesised from 2-naphthaldazine by means of a Lewis acid mediated cyclization with elimination of naphthalene.