Diastereoselective construction of carbo-bridged polyheterocycles by a three-component tandem annulation reaction
作者:Maorui Wang、Min Zhang
DOI:10.1039/d3ob01013a
日期:——
hydroamination-induced tandem annulation process, we herein report a new three-component reaction for room temperature construction of carbo-bridged polyheterocycles with exclusive diastereoselectivity, which features readily available feedstocks, catalyst-free conditions, good substrate and functionality compatibility, no need for transition metal catalysts, and high step and atom efficiency. The products
通过加氢胺化诱导的串联环化过程,我们在此报道了一种新的三组分反应,用于室温构建具有独特非对映选择性的碳桥多杂环,其特点是原料容易获得,无催化剂条件,良好的底物和功能相容性,无需用于过渡金属催化剂,具有高步骤效率和原子效率。该产物是通过首先由丁-2-炔二酸酯和肼形成1,2-二氢-3H-吡唑-3-酮亲核体,然后对N-杂芳鎓盐进行2,4-双官能化而形成的。鉴于所获得的产品具有结构上重要的四氢喹啉和吡喃吡唑基序,预计所开发的化学将进一步应用于发现包括生物医学分子在内的功能分子。