Construction of Oxo-Bridged Diazocines via Rhodium-Catalyzed (4+3) Cycloaddition of Carbonyl Ylides with Azoalkenes
Qiwen Pang, Jin Zhou, Yuling Wu, Wu-Jingyun Zhou, Wei‐Fang Zuo, Gu Zhan, Bo Han
Abstract
Developing efficient strategies for synthesizing novel diazocine compounds is valuable because their use has been limited by their synthetic accessibility. This work describes the catalytic (4+3) cycloaddition reaction of carbonyl ylides with azoalkenes generated in situ. The rhodium-catalyzed cascade reaction features good atom and step economy, providing the first access to oxo-bridged diazocines. The product could be synthesized on a gram scale and converted into diversely substituted dihydroisobenzofurans.
Topics & Concepts
ChemistryCycloadditionRhodiumCatalysisCombinatorial chemistryCascadeOrganic chemistryChromatographyCyclopropane Reaction MechanismsCatalytic C–H Functionalization MethodsSynthesis and Catalytic Reactions