17873-56-2

Upstream product

• 1730-04-7 1,8-diiodonaphthalene 
• 17135-74-9 1,8-dibromonaphthalene 
• 769-26-6 2-ethynyl-1,3,5-trimethylbenzene 

Downstream Products

• 32141-37-0 1-[1-Methoxy-1-(2,4,6-trimethyl-phenyl)-meth-(E)-ylidene]-2-(2,4,6-trimethyl-phenyl)-1H-phenalene 
• 32434-89-2 8,10,11-Trimethyl-12-(2,4,6-trimethyl-phenyl)-indeno[2,1-a]phenalene 
• 32141-31-4 7,9,11-Trimethyl-12-(2,4,6-trimethyl-phenyl)-azuleno[1,2-a]acenaphthylene 
• 32141-29-0 7-(2.4.6-Trimethylphenyl)-9.11-dimethyl-benzofluoranthen 

Relevant academic research and scientific papers

Gold-Catalyzed Annulation of 1,8-Dialkynylnaphthalenes: Synthesis and Photoelectric Properties of Indenophenalene-Based Derivatives

A simple gold-catalyzed annulation of 1,8-dialkynylnaphthalenes utilizing a cationic gold catalyst was developed. Such a peri-position of two alkynyl substituents has not been studied in gold catalysis before. Dependent on the substrate, the reactions either follow a mechanism involving vinyl cation intermediates or involve a dual gold catalysis mechanism which in an initial 6-endo-dig-cyclization generates gold(I) vinylidene intermediates that are able to insert into C?H bonds. Indenophenalene derivatives were obtained in moderate to high yields. In addition, the bidirectional gold-catalyzed annulation of tetraynes provided even larger conjugated π-systems. The optoelectronic properties of the products were also investigated.