Novel 9-hydroxy-beta-carboline derivatives were produced for the first time. A novel rearrangement reaction of 1,2,3,4-tetrahydro-9-hydroxy-beta-carbolines was discovered to give 3,3-disubstituted oxindoles, which was successfully applied to the total synthesis of (+/-)-coerulescine.
Simple Syntheses of Lespedamine and 5-Bromo-N,N-dimethyltryptamine Based on 1-Hydroxyindole Chemistry
摘要:
Various types of 1-hydroxyindoles were prepared for the first time. Through methylation or acid catalyzed nucleophilic bromination of N,N-dimethyl-1-hydroxytryptamine, simple syntheses of lespedamine and 5-bromo-N,N-dimethyltryptamine were achieved, respectively.
Mechanistic duality of indolyl 1,3-heteroatom transposition
作者:Yujin Lee、Yun Seung Nam、Soo Young Kim、Jeong Eun Ki、Hong Geun Lee
DOI:10.1039/d3sc00716b
日期:——
A novel mechanistic duality has been revealed from the indolyl 1,3-heteroatom transposition (IHT) of N-hydroxyindole derivatives. A series of in-depth mechanistic investigations suggests that two separate mechanisms are operating simultaneously. Moreover, the relative contribution of each mechanisticpathway, the energy barrier for each pathway, and the identity of the primary pathway were shown to