84716-36-9

Upstream product

• 54644-68-7 6-bromo-1-(4-methoxy-phenyl)-2-methyl-4,5-dioxo-4,5-dihydro-indole-3-carboxylic acid ethyl ester 
• 67434-68-8 Ethyl acetoacetate 

Downstream Products

• 114261-86-8 6-Bromo-4,5-dihydroxy-1-(4-methoxy-phenyl)-2-methyl-7-(2-oxo-propyl)-1H-indole-3-carboxylic acid ethyl ester 
• 114261-89-1 1-(p-methoxyphenyl)-2-methyl-3-ethoxycarbonyl-4,5-dimethoxy-6-bromoindole 
• 114261-88-0 6-Bromo-4-hydroxy-5-methoxy-1-(4-methoxy-phenyl)-2-methyl-7-(2-oxo-propyl)-1H-indole-3-carboxylic acid ethyl ester 

Relevant academic research and scientific papers

REACTION OF o-QUINONES OF THE BENZOFURAN AND INDOLE SERIES WITH ACETOACETIC ESTER AND ACETYLACETONE

The reaction of o-quinones of the benzofuran and indole series with acetoacetic ester and acetylacetone in the presence of zinc chloride leads to derivatives of 4,5-dihydroxybenzofuran and 4,5-dihydroxyindole with acetoacetic ester and acetylacetone resid