combination of cationic rhodium(I) complexes with N-phosphino tert-butylsulfinamides (PNSO) ligands is efficient for catalytic intra- and intermolecular [2+2+2] cycloaddition reactions. PNSO ligands are a new class of chiral bidentate ligands, which have the characteristic of combining the easily accessible sulfur chirality with the coordinating capacity of phosphorous. Cycloaddition of open-chained and
Practical and Efficient Iridium Catalysis for Benzannulation: An Entry To Isoindolines
作者:Anne-Laure Auvinet、Mehdi Ez-Zoubir、Maxime R. Vitale、Jack A. Brown、Véronique Michelet、Virginie Ratovelomanana-Vidal
DOI:10.1002/cssc.201200443
日期:2012.10
Iridium(III) catalysis provides a convenient and general method for the synthesis of isoindolines via [2+2+2] cycloaddition reactions of diynes and alkynes. The reaction proceeds smoothly in environmentally benign and non‐distilled isopropyl alcohol, providing highly functionalized aromatic compounds in moderate to excellent yields.