ChemInform Abstract: 2,5,6-Trisubstituted N-Methylindoles from Site-Selective Suzuki—Miyaura Cross-Coupling, Twofold Heck and 6π-Electrocyclization—Dehydrogenation Reactions of 2,3,5-Tribromo-N-methylpyrrole.

ChemInform Abstract: Synthesis of 2,5,6-

ChemInform Abstract: Synthesis of 2,5,6-Trisubstituted Benzimidazoles by Heck and Subsequent 6π-Electrocyclization—Dehydrogenation Reactions of 2,4,5-Tribromo-N-methylimidazole and 2-Aryl-4,5-dibromo-N-methylimidazole.

✍ Serge Mitherand Tengho Toguem; Peter Langer 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 31 KB 👁 1 views

## Abstract Heck reaction of tribromo imidazoles (I) and dibromo analogues (VI), obtained by arylation of (I), with vinyl compounds produces dialkenyl imidazoles which undergo 6π‐electrocyclization—dehydration to give the title benzimidazoles.