Tymann David, Tymann Dina Christina, Bednarzick Ulf, Iovkova-Berends Ljuba, Rehbein Julia, Hiersemann Martin
Fakultät für Chemie und Chemische Biologie, Technische Universität Dortmund, 44227, Dortmund, Germany.
Fakultät für Chemie und Pharmazie, Universität Regensburg, 93053, Regensburg, Germany.
Angew Chem Int Ed Engl. 2018 Nov 19;57(47):15553-15557. doi: 10.1002/anie.201808578. Epub 2018 Oct 30.
Embedded medium-sized carbacycles and cyclohepta[b]indoles occur frequently as scaffold elements in natural products and bioactive compounds. Described herein is a conceptionally novel photochemically triggered cascade process to these scaffolds. Key to the cascading ring-expansion process is an unprecedented intramolecular alkyne analogue of the de Mayo reaction.
嵌入式中型碳环和环庚并[b]吲哚作为天然产物和生物活性化合物中的骨架元素频繁出现。本文描述了一种针对这些骨架的概念上新颖的光化学触发级联反应过程。级联扩环反应的关键是一种前所未有的分子内炔烃类似物的德 Mayo 反应。