TY - JOUR AU - De, Pinaki Bhusan; Pradhan, Sourav; Shah, Tariq A.; Punniyamurthy, Tharmalingam TI - Iodine-Mediated Intramolecular C–H Amination of Benzimidazoles: A Metal-Free Route to Dihydroimidazobenzimidazoles SN - 0039-7881 SN - 1437-210X PY - 2018 JO - Synthesis JF - Synthesis LA - EN VL - 50 IS - 16 SP - 3224 EP - 3230 ET - 2018/04/19 DA - 2018/08/02 KW - amination KW - iodine KW - C–H functionalization KW - imidazobenz­imidazole KW - optical purity AB - Iodine-mediated cyclization of benzimidazolylethylamines in the presence of base to give dihydroimidazobenzimidazoles via a de­hydrogenative cross-coupling of C(sp2)–H and N–H bonds is reported. Metal-free conditions, preservation of the optical purity, and substrate scope are the important practical features. PB - © Georg Thieme Verlag DO - 10.1055/s-0036-1591568 UR - http://www.thieme-connect.com/products/ejournals/abstract/10.1055/s-0036-1591568 ER -