作者:Chuyi Su、Madeleine A. Dallaston、Renée D. Watson、Tyler Fahrenhorst-Jones、Jacob P. Cameron、Gregory K. Pierens、Paul V. Bernhardt、G. Paul Savage、Craig M. Williams
DOI:10.1021/acs.orglett.3c03655
日期:2024.4.12
The first synthesis of the 5-aza[1.0]triblattane skeleton was achieved through a [4 + 2] cycloaddition approach using a suitably protected azetine and cyclopentadiene. A series of azetines were synthesized to explore both stability and suitable N-protection. The key step following cycloaddition utilized a noninitiated protonated aminyl radical cyclization to install the final 5-azatriblattane bond
5-aza[1.0]triblatane 骨架的首次合成是使用适当保护的氮杂汀和环戊二烯通过 [4 + 2] 环加成方法实现的。合成了一系列氮杂汀以探索稳定性和合适的 N-保护。环加成后的关键步骤利用未引发的质子化氨基自由基环化来安装最终的 5-氮杂三硼烷键,但发现它在酸性条件下比 6-氮杂异构体更不稳定。