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.
开发合成新型重氮辛化合物的有效策略很有价值,因为它们的使用受到合成可及性的限制。这项工作描述了羰基叶立德与原位生成的偶氮烯烃的催化 (4+3) 环加成反应。
铑催化的级联反应具有良好的原子和步骤经济性,首次获得了氧代桥连的二氮杂
萘。该产品可以按克级合成并转化为多种取代的二氢
异苯并呋喃。