Synthesis of Mixed Thiophene/Furan Oligomers by Stille Coupling.
A series of mixed thiophene/furan oligomers have been synthesized via organometallic Stille coupling. In some cases, beside cross-coupling products, symmetrical coupling products were isolated. Oligomers consisting of up to 11 rings were obtained. Attempts to prepare macrocycles with 10 thiophene and furan units were not successful.
Hucke
A.
A
Department of Chemistry, The University of Alabama, Box 870336, Tuscaloosa, Alabama 35487-0336.
Cava
M. P.
MP