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Upstream product

• 877-08-7 1,2,3,4-tetrachloro-5,6-dimethyl-benzene 
• 3144-09-0 methanesulfonamide 
• 54117-67-8 1,2-bis-(bromomethyl)-3,4,5,6-tetrachlorobenzene 

Relevant academic research and scientific papers

Studies on the Chemistry of Isoindoles and Isoindolenines, XXXI. 4,5,6,7-Tetrachloro-and 4,5,6,7-Tetrabromo-2H-isoindoles

The crystalline 2H-isoindoles 4b are synthesized starting with substituted 2-methylsulfonyl-2,3-dihydro-1H-isoindoles 3 by base-induced elimination of methanesulfinic acid.Compared with the parent compound, a considerable thermal stabilization and chemical deactivation is caused by the halogen atoms at the carbocyclic system.The spectroscopic properties of the o-quinonoid hetarenes 4b have been investigated.