107128-06-3

Upstream product

• 102718-35-4 dimethyl 2-chloro-6,10-dioxopyrido<2,1-c>-1,4-benzoxazine-7,8-dicarboxylate 
• 91502-89-5 trimethyl 2,3-dihydro-6-chloro-2-oxo-4H-1,4-benzoxazine-Δ^3,γ-acetonitate 

Relevant academic research and scientific papers

A Simple Synthesis of Dimethyl 2-Pyridone-4,5-dicarboxylate Derivatives

1-Hydroxyphenyl-2-pyridone derivatives 8, 10 and 11 were easily prepared by treatment of methyl isocrotonate derivatives 6 with base at room temperature in good yields.

Synthesis of 1-Hydroxyphenyl-Substituted 6-Alkoxycarbonyl (and 6-Carbamoyl)-2-Pyridone-4,5-Dicarboxylic Acid Dimethyl Esters

A new and convenient synthesis of dimethyl 1-hydroxyphenyl-2-pyridone-4,5-dicarboxylate derivatives 4-6 from o-aminophenols and dimethyl acetylenedicarboxylate is reported.