HandaPhos: A General Ligand Enabling Sustainable ppm Levels of Palladium-Catalyzed Cross-Couplings in Water at Room Temperature
作者:Sachin Handa、Martin P. Andersson、Fabrice Gallou、John Reilly、Bruce H. Lipshutz
DOI:10.1002/anie.201510570
日期:2016.4.11
complexed in a 1:1 ratio with Pd(OAc)2, enables Pd‐catalyzed cross‐couplings to be run using ≤1000 ppm of this pre‐catalyst. Applications to Suzuki–Miyaura reactions involving highly funtionalized reaction partners are demonstrated, all run using environmentally benign nanoreactors in water at ambient temperatures. Comparisons with existing state‐of‐the‐art ligands and catalysts are discussed herein.
Photochemical [2+2] Cycloaddition of Alkynyl Boronates
作者:Oleksandr S. Liashuk、Oleksandr O. Grygorenko、Yulian M. Volovenko、Jérôme Waser
DOI:10.1002/chem.202301650
日期:2023.9.26
A photochemical [2+2] cycloaddition of alkynyl boronates and maleimides is described as a convenient method for the synthesis of polysubstituted borylated cyclobutenes tolerating a wide range of functional groups. Physicochemical and structural properties of the products obtained provide rationale for their application as phthalimide isosteric replacements, for example, in Thalidomide. Mechanistic