112423-11-7

Upstream product

• 112423-06-0 8,8-Dimethoxy-1,6-dimethyl-4-phenyl-2-oxa-6-azabicyclo<2.2.2>octan-3,5-dion 
• 17118-70-6 (chlorocarbonyl)phenyl ketene 
• 6052-75-1 4-hydroxy-1,6-dimethylpyridin-2(1H)-one 
• 40334-97-2 4-methoxy-1,6-dimethylpyridin-2(1H)-one 
• 98-80-6 phenylboronic acid 
• 68823-05-2 2,3-Dimethyl-6-oxo-5-phenyl-6H-1,3-oxazin-3-ium-4-olat 

Relevant academic research and scientific papers

Regioselective Chlorination and Suzuki–Miyaura Cross-Coupling of 4-Alkoxycoumarins, 4-Alkoxy-2-pyrones, and Related Heterocycles

Chlorination of the coumarin framework was achieved by using trichloroisocyanuric acid, which has several advantages over N-chlorosuccinimide, particularly with respect to cost-effectiveness and toxicity. The Suzuki–Miyaura cross-coupling of the chlorinat

Novel 1,4-Dipolar Cycloaddition Reactions of 6-Oxo-6H-1,3-oxazin-3-ium-4-olates and of a 6-Oxo-6H-1,3-thiazin-3-ium-4-olate to Ketene Derivatives and Enamines

The reactions of the ketene derivatives 4, 7, and 9 as well as of the enamines 13 and 17 with some selected title compounds are described.In these cases either primary adducts of type 5, 14, or 20 are produced by a 1,4-dipolar cycloaddition, or subsequent eliminations proceed with formation of products of type 8, 11, 16, or 18.The 2(1H)-pyridinones 8 are formed by thermolysis of 5, whereas 15a-d are accessible on treatment of 14a-d or 20 with acid.The observed regioselectivities are compared with the results of MNDO calculations and the FMO and PMO theory.