Allenols versus Allenones: Rhodium-Catalyzed Regiodivergent and Tunable Allene Reactivity with Triazoles
作者:Benito Alcaide、Pedro Almendros、Sara Cembellín、Teresa Martínez del Campo、Guillermo Palop
DOI:10.1002/chem.201702468
日期:2017.10.4
2‐Pyrrolines and 6‐oxo‐hexa‐2,4‐dienals have been prepared through the divergent reactions of 1‐benzenesulfonyl‐4‐aryl‐1,2,3‐triazoles with functionalized allenes. The rhodium‐catalyzed reactions between allenols and 1‐benzenesulfonyl‐4‐aryl‐1,2,3‐triazoles yielded 2‐pyrrolines. This transformation is compatible with the presence of aliphatic, aromatic, heterocyclic, amide, and halogen functional groups
Synthesis of Fused Cyclopentenones through Palladium-Catalyzed Cyclization of 2-Iodoaryl Allenols
作者:Benito Alcaide、Pedro Almendros、José M. Alonso、Israel Fernández、Saeed Khodabakhshi
DOI:10.1002/adsc.201301127
日期:2014.4.14
A versatile strategy for the synthesis of fused cyclopentenones, key structural motifs in biologically relevant compounds such as indenones and indole alkaloids, has been established successfully through regioselective palladium‐catalyzed cyclization of 2‐iodoaryl allenols.