Palladium-catalyzed carbocyclization–cross-coupling reactions of two different allenic moieties: synthesis of 3-(buta-1,3-dienyl) carbazoles and mechanistic insights
作者:Benito Alcaide、Pedro Almendros、José M. Alonso、Israel Fernández
DOI:10.1039/c2cc32015k
日期:——
A palladium-catalyzed chemo-, regio- and stereoselective carbocyclizationâcross-coupling sequence of two different α-allenols to afford 3-(E-buta-1,3-dienyl) carbazoles is reported.
Palladium Nanoparticles in Water: A Reusable Catalytic System for the Cycloetherification or Benzannulation of α-Allenols
作者:Benito Alcaide、Pedro Almendros、Ana M. González、Amparo Luna、Sagrario Martínez-Ramírez
DOI:10.1002/adsc.201501132
日期:2016.6.16
A convenient ligand‐free catalyticsystem has been developed for the chemoselective cyclization reaction of various α‐allenol derivatives by palladiumnanoparticles (PdNPs) in an aqueous reaction medium.
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