Cumulene photochemistry: photorearrangments of tetraphenyl and triphenyl C3 isomers
作者:Michael W. Klett、Richard P. Johnson
DOI:10.1021/ja00299a036
日期:1985.6
Photoreactions dans des solvants aprotiques du tetraphenylallene, du triphenylallene, des triphenyl-1,2,3- et -1,3,3-cyclopropenes. Description des isomeres de l'indene diversement substitues figurant parmi les photoproduits. Mecanisme
光反应 dans des solvants aprotiques du tetraphenylallene, du triphenylallen, des triphenyl-1,2,3- et -1,3,3-cyclopropenes。描述 des isomeres de l'indene 多样性替代 figurant parmi les photoproduits。机制
Regio- and Stereoselective Route to Tetrasubstituted Olefins by the Palladium-Catalyzed Three-Component Coupling of Aryl Iodides, Internal Alkynes, and Arylboronic Acids
作者:Chengxiang Zhou、Richard C. Larock
DOI:10.1021/jo048265+
日期:2005.5.1
The Pd-catalyzed three-component coupling of readily available aryl iodides, internalalkynes, and arylboronic acids provides a convenient, one-step, regio- and stereoselective route to tetrasubstitutedolefins in good to excellent yields, although electron-poor aryl iodides and dialkylalkynes normally afford only low yields under our standard reaction conditions. The proper combination of substrates