An efficient <scp>d</scp>-glucosamine-based copper catalyst for C–X couplings and its application in the synthesis of nilotinib intermediate
作者:Ming Wen、Chao Shen、Linfang Wang、Pengfei Zhang、Jianzhong Jin
DOI:10.1039/c4ra11183d
日期:——
D-Glucosamine has been studied for C–N and C–S bond formations via cross-coupling reactions of nitrogen and sulfur nucleophiles with both aryl iodides and bromides. Imidazoles, benzimidazole, indole, pyrrolidine and diphenyl disulfide undergo reactions with aryl halides in the presence of 10 mol% D-glucosamine, 10 mol% CuI, and 2 equiv. of Cs2CO3 in DMSO–H2O at moderate temperature to give the corresponding
已经通过氮和硫亲核试剂与芳基碘化物和溴化物的交叉偶联反应研究了D-氨基葡萄糖的C–N和C–S键的形成。咪唑,苯并咪唑,吲哚,吡咯烷和二苯基二硫化物在10摩尔%D-葡萄糖胺,10摩尔%CuI和2当量的存在下与芳基卤化物发生反应。DMSO–H 2中的Cs 2 CO 3浓度在中等温度下O可得到相应的产物,收率良好至极佳。具有卤化物,游离氨基,三氟甲基和杂环的底物具有良好的耐受性。配体的高水溶性使其易于去除催化剂。此外,使用市售底物也成功证明了该催化体系在尼罗替尼中间体合成中的应用。