Ring Expansion to 6‐, 7‐, and 8‐Membered Benzosilacycles through Strain‐Release Silicon‐Based Cross‐Coupling
作者:Ying Qin、Jie‐Lian Han、Cheng‐Wei Ju、Dongbing Zhao
DOI:10.1002/anie.202001539
日期:2020.5.25
The synthesis of silacycles is highly appealing due to their important applications in organic synthesis, medicinal chemistry, and materials chemistry. However, sila-tetralins and sila-benzosuberanes are surprisingly under-represented due to a lack of general methods to access these compounds. We successfully developed a Pd-catalyzed strain-release silicon-based cross-coupling as an unprecedented ring-expansion
硅杂环化合物的合成因其在有机合成,药物化学和材料化学中的重要应用而极具吸引力。然而,由于缺乏获取这些化合物的通用方法,因此,硅四氢萘酚和硅烷基苯并亚戊酮的含量出人意料地不足。我们成功开发了一种Pd催化的应变释放基于硅的交叉偶联,这是前所未有的扩环方法,它构成了制备各种sila-tetralins和sila-benzobenzoeranes的通用途径。