Iodine(V) Reagents in Organic Synthesis. Part 1. Synthesis of Polycyclic Heterocycles via Dess−Martin Periodinane-Mediated Cascade Cyclization: Generality, Scope, and Mechanism of the Reaction
作者:K. C. Nicolaou、P. S. Baran、Y.-L. Zhong、K. Sugita
DOI:10.1021/ja012124x
日期:2002.3.1
reaction of unsaturated anilides discovered during the total synthesis of the CP-molecules (phomoidrides A and B) are delineated. A plethora of heterocyclic compounds are accessible by employing gamma,delta-unsaturated amides (derived from anilines and carboxylic acids), urethanes, or ureas (derived from isocyanates and allylic alcohols and amines) as substrates. Optimization of the reaction led to room-temperature
描述了在 CP 分子(phomoidrides A 和 B)的全合成过程中发现的不饱和苯胺的 Dess-Martin periodinane 介导的环化反应的范围、一般性和机制。通过使用γ,δ-不饱和酰胺(衍生自苯胺和羧酸)、氨基甲酸酯或脲(衍生自异氰酸酯和烯丙醇和胺)作为底物,可以获得大量杂环化合物。反应的优化导致室温条件,而同位素标记研究为这种级联反应提供了机械原理。