A novel synthesis of substituted β-carboline-3-esters was achieved by the molecular iodine catalyzed reaction of tryptophan methyl ester hydrochlorides with methyl ketones through oxidative C(CO) − C(methyl) bond cleavage. The products in these reactions are similar to those produced in regular Pictet-Spengler reactions of tryptophan methyl esters with analogous aldehyde substrates. Studies revealed
通过分子
碘催化色
氨酸甲酯盐酸盐与甲基酮通过氧化C(CO) - C(甲基)键断裂反应,实现了取代β-咔啉-3-酯的新合成。这些反应中的产物与色
氨酸甲酯与类似醛底物的常规 Pictet-Spengler 反应中产生的产物相似。研究表明,反应涉及
亚胺形成、环化,然后
碘催化酮底物甲基的 C(CO)−C(烷基) 键断裂,形成最终化合物。