Synthesis of Alkynylated Selenophenes by Site-Selective Sonogashira Reactions of Tetrabromoselenophene
作者:Peter Ehlers、Tung T. Dang、Tamás Patonay、Alexander Villinger、Peter Langer
DOI:10.1002/ejoc.201201440
日期:2013.4
tetraalkynylated selenophenes were prepared by site-selectiveSonogashirareactions of tetrabromoselenophene. Aryl-, alkyl-, and trimethylsilylacetylenes were suitable substrates for this procedure. The first attack occurred regioselectively at C-2 and C-5. In addition, differently diarylated dialkynylselenophenes were prepared using site-selective Suzuki and Sonogashirareactions.