Affecting the Aromatic System

Tellurophene was oligomerized by the dropwise addition of a suspension of iron(III) chloride to a solution of tellurophene in chloroform at 20°. The electrically-conducting oligomer had approximately four tellurophene units per molecule.  

When tellurophene was reacted in benzene with 2,4-dibromo-3-pentanone in the presence of diiron nonacarbonyl in a sealed tube for six days at 40°, three bicyclic addition products and one substitution product were identified by NMR spectroscopy.  

Tsukagoshi (Mitsui Toatsu Chemicals, Inc. Shinko Chemical Co., Ltd.) C.A. 107, 16250 (1987). 

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