1346463-75-9

Upstream product

• 120-14-9 3,4-dimethoxy-benzaldehyde 
• 555-21-5 4-Nitrophenylacetonitrile 
• 2958-39-6 (Z)-3-(3',4'-dimethoxyphenyl)-2-(4''-nitrophenyl)acrylonitrile 
• 1346463-60-2 5-(3,4-dimethoxyphenyl)-4-(4-nitrophenyl)penta-(2E,4Z)-dienoyl azide 
• 1346463-46-4 5-(3,4-dimethoxyphenyl)-4-(4-nitrophenyl)penta-(2E,4Z)-dienoic acid 
• 1346463-33-9 (E)-2-(4-nitrophenyl)-3-(3,4-dimethoxyphenyl)acrylaldehyde 

Relevant academic research and scientific papers

Substituent effects on the iodine-catalyzed thermal cyclization of 3,4-diphenylbuta-1,3-dienyl isocyanates: Mechanistic studies

The thermal cyclization of 3,4-diphenylbuta-1,3-dienyl isocyanates 1, generated in situ from the corresponding azides, was investigated using iodine as a catalyst. Diphenylpyridinones 2, phenylnaphthalenes 3, and indenes 4 were produced via intramolecular ring closure. The nature of the substituents on the phenyl rings was found to be crucial to the distribution of cyclized products 2 - 4. The mechanism of the reaction is also discussed.