126156-44-3

Upstream product

• 126156-43-2 4,5-Dichloro-1-(3,4-dichloro-phenyl)-cyclohexa-2,4-dienecarboxylic acid methyl ester 
• 126156-42-1 3,4-Dichloro-1-(3,4-dichloro-phenyl)-6-phenylselanyl-cyclohex-3-enecarboxylic acid methyl ester 
• 41374-09-8 3,4-dichlorophenylmaleic anhydride 

Downstream Products

• 126156-37-4 2,3-Dichloro-5-(3,4-dichloro-phenyl)-7-oxa-bicyclo[4.1.0]hepta-2,4-diene 
• 126156-45-4 2-Bromo-3-chloro-5-(3,4-dichloro-phenyl)-7-oxa-bicyclo[4.1.0]hepta-2,4-diene 

Relevant academic research and scientific papers

Preparation of the 5,6-Arene Oxide of 3,3',4,4'-Tetrachlorobiphenyl. Decarboxylative Elimination as an Effective Last Step

The 5,6-arene oxide of 3,3',4,4'-tetrachlorobiphenyl was prepared by a sequence in which two of the double bonds were introduced by decarboxylations.The first involved a Barton decarboxylative selenation and selenoxide elimination, the second a decarboxyl