Synthesis of vinylphosphines and unsymmetric diphosphines: iron-catalyzed selective hydrophosphination reaction of alkynes and vinylphosphines with secondary phosphines
The first example of iron complex-catalyzed single hydrophosphination of terminal arylacetylene with secondary phosphine was achieved and unsymmetric 1,2-bis(phosphino)ethanes were obtained.
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...
Double hydrophosphination of alkynes promoted by rhodium: the key role of an N-heterocyclic carbene ligand
作者:Andrea Di Giuseppe、Roberto De Luca、Ricardo Castarlenas、Jesús J. Pérez-Torrente、Marcello Crucianelli、Luis A. Oro
DOI:10.1039/c5cc09156j
日期:——
The stereoelectronic properties of the NHC ligand make possible the rhodium-catalysed double hydrophosphination of alkynes avoiding the catalyst deactivation by the diphosphine product.
NHC配体的立体电子性质使铑催化炔烃的双氢磷酸化避免了二膦产物使催化剂失活。
1,1-Diphosphines and divinylphosphines <i>via</i> base catalyzed hydrophosphination
作者:N. T. Coles、M. F. Mahon、R. L. Webster
DOI:10.1039/c8cc05890c
日期:——
be reported: these narrow bite angle pro-ligands have been used to great effect as ligands in homogeneouscatalysis. We herein demonstrate that terminal alkynes readily undergo double hydrophosphination with HPPh2 and catalytic potassium hexamethyldisilazane (KHMDS) to generate 1,1-diphosphines. A change to H2PPh leads to the formation of P,P-divinyl phosphines.
Regio- and Stereoselective Synthesis of Alkenylphosphines: A Rhodium-Catalyzed Hydrophosphination of Alkynes Using a Silylphosphine
作者:Minoru Hayashi、Yutaka Matsuura、Yutaka Watanabe
DOI:10.1021/jo061739f
日期:2006.11.1
A novel rhodium-catalyzed hydrophosphination of alkynes using a silylphosphine as a phosphino group source is described. A variety of alkynes, both terminal and internal ones with aryl, alkyl, and carboxyl groups, gave the corresponding alkenylphosphines in a highly regioselective and syn-selective manner. Alkenes with an electron-withdrawing group also gave the corresponding adducts in good yields