Ni(NHC) Catalyzed Rearrangement of 1‐Acyl‐2‐vinylcyclopropanes: Tackling a Mechanistic Puzzle by Combined Experimental and Computational Studies
作者:Anna Zens、Florian Bauer、Benedikt Kolb、Fabian Mannchen、Philipp Seubert、Robert Forschner、Kim S. Flaig、Andreas Köhn、Doris Kunz、Sabine Laschat
DOI:10.1002/ejoc.201901096
日期:2019.9.30
The Ni(NHC) catalyzed rearrangement of 1-acyl-2vinylcyclopropanes to the corresponding 4-acyl-cyclopent-1enes is highly promising for the synthesis of keto-functionalized annelated biand tricyclic subunits of natural products. Therefore, we investigated the catalytic activity of Ni(NHC) complexes in the rearrangement of 1-acyl-2-vinylcyclopropanes with different ring sizes and substitution patterns
Ni(NHC) 催化 1-acyl-2vinylcyclopropanes 重排为相应的 4-acyl-cyclopent-1enes 对于合成酮官能化的天然产物的双环和三环亚基非常有希望。因此,我们研究了 Ni(NHC) 配合物在具有不同环大小和取代模式的 1-acyl-2-vinylcyclopropanes 重排中的催化活性。观察到关于 Ni(NHC) 催化的乙烯基环丙烷-环戊烯重排的底物范围和立体选择性的惊人影响。仅含 1-甲基、1-苯基、1,2-的乙烯基环丙烷