A Novel Concept in Combinatorial Chemistry in Solution with the Advantages of Solid-Phase Synthesis: Formation of N-Betaines by Multicomponent Domino Reactions
作者:Lutz F. Tietze、Holger Evers、Enno Töpken
DOI:10.1002/1521-3773(20010302)40:5<903::aid-anie903>3.0.co;2-7
日期:2001.3.2
solid-phase and liquid-phase synthesis are combined in a new concept of combinatorial chemistry: a domino sequence comprising Knoevenagel and hetero-Diels-Alder reactions with subsequent hydrogenation starting from protected aminoaldehydes, 1,3-dicarbonyl compounds, and enol ethers leads to N-heterocycles of high diversity with a betaine structure, which are isolated in highly pure form by precipitation
在组合化学的新概念中结合了固相和液相合成的优点:包含Knoevenagel和杂Diels-Alder反应的多米诺序列,随后从受保护的氨基醛,1,3-二羰基化合物和烯醇醚开始氢化导致形成具有甜菜碱结构的高度多样性的N杂环,这些杂环可以通过用乙醚沉淀而以高纯的形式分离出来。Cbz =苄氧羰基,Bn =苄基。