Reformatsky Reaction of Methyl 1-Bromocyclohexanecarboxylate with N,N′-(1,4-Phenylene)bis(1-arylmethanimines)
作者:E. A. Nikiforova、D. V. Baibarodskikh、N. F. Kirillov、L. A. Glavatskikh
DOI:10.1134/s107042802006010x
日期:2020.6
AbstractReformatsky reagent prepared from methyl 1-bromocyclohexanecarboxylate reacted with N,N′-(1,4-phenylene)bis(1-arylmethanimines) to produce 2,2′-(1,4-phenylene)bis[3-aryl-2-azaspiro[3.5]nonan-1-ones] as a result of successive nucleophilic additions to the C=N double bonds of the substrate and intramolecular cyclization of the corresponding intermediates. The stepwise reaction mechanism was proved by the isolation
摘要由1-溴环己烷甲酸甲酯与N,N '-(1,4-亚苯基)双(1-芳基甲亚胺)反应制得的Reformatsky试剂可生成2,2'-(1,4-亚苯基)双[3-芳基-2- azaspiro [3.5] nonan-1-ones的结果,是连续向底物的C = N双键进行亲核加成以及相应中间体的分子内环化作用。通过在与等摩尔量的席夫碱和Reformatsky试剂的反应中分离2- [4-(芳基亚甲基氨基)苯基] -3-芳基-2-氮杂螺[3.5]壬基-1-酮来证明逐步反应机理。