Catalyst- and solvent-free hydrophosphination and multicomponent hydrothiophosphination of alkenes and alkynes
作者:Yanina Moglie、María José González-Soria、Iris Martín-García、Gabriel Radivoy、Francisco Alonso
DOI:10.1039/c6gc00903d
日期:——
The hydrophosphination of carbon-carbon multiple bonds has been generally performed under acid, base or metal catalysis in different solvents. Herein, alkyl and alkenyl tertiary phosphines are obtained by the addition...
Photocatalytic Hydrophosphination of Alkenes and Alkynes Using Diphenylphosphine and Triamidoamine‐Supported Zirconium
作者:Bryan T. Novas、Christine A. Bange、Rory Waterman
DOI:10.1002/ejic.201801079
日期:2019.3.31
Reactions of alkene or alkyne with diphenylphosphine and catalytic [κ5‐N,N,N,N,C‐(Me3SiNCH2CH2)2NCH2CH2NSiMe2CH2]Zr (1) are greatly enhanced under photolysis, providing viable catalytic hydrophosphination with a broad substrate scope. Whereas diphenylphosphine had been an inaccessible substrate under thermal conditions, complete conversion of alkene substrates to tertiary phosphine is achieved in as
ionic liquids based on imidazolium and pyrrolidinium cations and weakly coordinating anions proved to be efficient solvents for the biphasic rhodium catalyzed hydroformylation of 1-hexene; the reaction rate and regioselectivity, and the retention of the rhodium can be optimized by fitting the nature of the anions and cations of the ionic liquid and the modified phosphite or phosphine ligands.
Zirconium complexes supported by multidentate aminophenolato ligands were synthesized and characterized. The catalytic activities of neutral zirconium complexes and their cationic derivatives in the hydrophosphination of alkenes as well as heterocumulenes have been investigated and compared. Neutralcomplex 1 bearing a multidentate amino mono(phenolato) ligand exhibited high activity in hydrophosphination
Visible Light Photocatalysis Using a Commercially Available Iron Compound
作者:Justin K. Pagano、Christine A. Bange、Sarah E. Farmiloe、Rory Waterman
DOI:10.1021/acs.organomet.7b00499
日期:2017.10.23
reactivity over the same transformations using 1 or related CpFeMe(CO)2 under UV irradiation, consistent with the notion that hydrophosphination with 1 proceeds via formation of CpFe(CO)2•. These results demonstrate that catalyst selection can avail the use of commercially available LED bulbs as photon sources, potentially replacing mercury arc lamps or other energy intensive processes in known or new catalytic