REACTION OF PROPARGYL BROMIDE AND TRIMETHYLSILYLPROPARGYL IODIDE WITH METALLIC TIN, ALUMINUM, AND ALDEHYDES OR KETONES. SELECTIVE SYNTHESIS OF β-ACETYLENE, β-TRIMETHYLSILYLACETYLENE, AND α-TRIMETHYLSILYLALLENE ALCOHOLS
β-Acetylenic and α-allenic alcohols were synthesized selectively by the reaction of aldehydes and ketones with organotin compounds prepared by treatment of propargyl bromide or trimethylsilylpropargyl iodide with metallic tin and aluminum in a suitable solvent.
1,3‐Sulfinate Migration Triggered by α‐Imino Carbene and Divergent Zwitterion Cyclization: Synthesis of Cyclopropane, Dihydropyrrole, and Azepane Ring Systems
作者:Huaping Xu、Xiaoyu Kong、Mengjie Cen、Ze‐Feng Xu、Shengguo Duan、Chuan‐Ying Li
DOI:10.1002/ejoc.202201417
日期:2023.2.17
Three birds with one stone: A convenient divergent synthetic strategy was established by regulation on the intramolecular annulation modes of zwitterion bearing multiple reactive sites, yielding various functionalized 3-, 5-, and 7-membered rings.