atom economic and has been performed in hexafluoroisopropanol (HFIP) without any added catalyst. The GBB-3CR showed high tolerance for a large no of substrates in term of aldehydes, differently substituted 2-aminopyridines and isocyanides without being affected by the presence of electron donating and electron withdrawing substituents at either aldehydes or 2-aminopyridines.
开发了一种溶剂催化且无
金属催化剂的 Groebke-Blackburn-Bienayame 三组分反应 (GBB-3CR),用于合成 2-( β -D-glycal-1-yl)-3- N -alkamino-1-氮杂
吲嗪和2-烷基/芳基/杂芳基-3- N-烷基
氨基-1-氮杂
吲嗪。改进的 GBB 反应方案高效、通用、原子经济,并且已在
六氟异丙醇 (HFIP) 中进行,无需添加任何催化剂。 GBB-3CR对醛、不同取代的2-
氨基吡啶和异
氰化物等大量底物表现出高耐受性,而不受醛或2-
氨基吡啶上存在的给电子和吸电子取代基的影响。