77123-64-9Relevant academic research and scientific papers
1,1-Diphosphines and divinylphosphines via base catalyzed hydrophosphination
Coles,Mahon,Webster
, p. 10443 - 10446 (2018/09/21)
A catalytic hydrophosphination route to 1,1-diphosphines is yet to be reported: these narrow bite angle pro-ligands have been used to great effect as ligands in homogeneous catalysis. 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.
Efficient approach to 4-sulfonamidoquinolines via copper(I)-catalyzed cascade reaction of sulfonyl azides with alkynyl imines
Cheng, Guolin,Cui, Xiuling
supporting information, p. 1480 - 1483 (2013/06/26)
A novel and efficient approach to 4-sulfonamidoquinolines via copper-catalyzed cascade reaction of sulfonyl azides with alkynyl imines has been developed in which a 1,3-dipole cycloaddition/ketenimine formation/6π-electrocyclization/[1,3]-H shift cascade
Synthesis of Unsymmetrical Dialkynyl Imines. Stepwise Coupling of N-Phenyl Phenylthioimidoyl Chloride with Alkyltin Compounds
Ito, Yoshihiko,Inouye, Masahiko,Murakami, Masahiro
, p. 1261 - 1264 (2007/10/02)
A stepwise introduction of two different alkynyl groups onto the iminocarbon leading to the synthesis of unsymmetrical dialkynyl imines was achieved by palladium-catalyzed coupling reaction of N-phenyl phenylthioimidoyl chloride with alkyltin compounds.
Facile Synthesis of Ethynylated Benzoic Acid Derivatives and Aromatic Compounds via Ethynyltrimethylsilane
Austin, William B.,Bilow, Norman,Kelleghan, William J.,Lau, Kreisler S. Y.
, p. 2280 - 2286 (2007/10/02)
The coupling reaction between an aromatic halide and ethynyltrimethylsilane under the catalysis of palladium(0) generated in situ, followed by treatment of the (trimethylsilyl)ethynyl product with potassium carbonate in methanol at ambient temperatures, provides a simple approach to various ethynylated benzoic acid derivatives and other aromatic compounds.The conditions for the removal of the trimethylsilyl group were very mild, so that base-sensitive functionalities on the aromatic moiety could be tolerated.
