DBN has been identified as an efficient reagent for promoting the dehydrogenative/decarboxylative aromatization of tetrahydro-β-carbolines under air atmosphere, to access the corresponding β-carbolines in moderate to good yields. The utility of this protocol for the gram-scale synthesis of β-carboline alkaloids eudistomin U (7) and harmane (10) has also been demonstrated.
已确认有机碱
DBN是在空气气氛下促进四氢-β-咔啉的脱氢/脱羧芳构化的有效试剂,以中等到良好的产率获得相应的β-咔啉。还证明了该方案可用于以克级合成β-咔啉
生物碱eudistomin U(7)和harmane(10)。