首页> 外文期刊>Angewandte Chemie >Rhodium(I)-Catalyzed Decarbonylative Spirocyelization through C—C Bond Cleavage of Benzocyclobutenones: An Efficient Approach to Functionalized Spirocycles
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Rhodium(I)-Catalyzed Decarbonylative Spirocyelization through C—C Bond Cleavage of Benzocyclobutenones: An Efficient Approach to Functionalized Spirocycles

机译:铑(I)催化的苯环丁烯酮的CC键断裂脱羰螺链化反应:一种功能化螺环的有效方法。

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摘要

The rhodium-catalyzed formation of all-carbon spirocenters involves a decarbonylative coupling of trisubsti-tuted cyclic olefins and benzocyclobutenones through C~C activation. The metal-ligand combination [{Rh(CO)2Cl]2]/ P(C6F5)3 catalyzed this transformation most efficiently. A range of diverse spirocycles were synthesized in good to excellent yields and many sensitive functional groups were tolerated. A mechanistic study supports a hydrogen-transfer process that occurs through a 0-H elimination/decarbonylation pathway.
机译:铑催化的全碳螺中心的形成涉及通过C〜C活化的三取代环烯烃和苯并环丁烯酮的脱羰偶联。金属-配体组合[{Rh(CO)2Cl] 2] / P(C6F5)3最有效地催化了这种转变。合成了多种多样的螺环,收率良好至优异,并且可以耐受许多敏感的官能团。机理研究支持通过0-H消除/脱羰途径进行的氢转移过程。

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