Hemilabile P,O-ligands in palladium catalysed C–C linkages: codimerization of ethylene and styrene and cooligomerization of ethylene and carbon monoxide
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...
作者:John P. W. Stelmach、Christine A. Bange、Rory Waterman
DOI:10.1039/c5dt04272k
日期:——
Simple tin derivatives, Cp*2SnCl2 (1) and Ph2SnCl2 (2), catalyze the hydrophosphination of alkene substrates with diphenylphosphine. Competitive dehydrocoupling to give Ph4P2 was observed, but this side reaction can be mitigated when the catalysis is conducted under an H2 atmosphere. Efforts to prepare stable tinbis(phosphido) compounds commonly resulted in decomposition to Ph4P2. Lewis acidic inorganic
简单的锡衍生物Cp * 2 SnCl 2(1)和Ph 2 SnCl 2(2)催化烯烃与二苯基膦的加氢磷酸化。观察到竞争性的脱氢偶联得到Ph 4 P 2,但是当在H 2气氛下进行催化时,该副反应可以减轻。制备稳定的双(锡)双锡锡化合物的努力通常导致分解为Ph 4 P 2。路易斯酸性无机锡化合物不显示脱氢偶联反应性。发现路易斯酸B(C 6 F 5)如图3所示,其能够进行烯烃的加氢磷酸化,但是在测试条件下效果较差。
Fluoride-catalyzed three-component coupling reaction of a silylphosphine, activated alkenes and aldehydes
作者:Minoru Hayashi、Yutaka Matsuura、Yutaka Watanabe
DOI:10.1016/j.tetlet.2005.05.128
日期:2005.8
A novel CsF-catalyzed three-componentcouplingreaction of a silylphosphine, activatedalkenes and aldehydes is described. Multi-functional phosphines were obtained by forming both carbon–phosphorus and carbon–carbon bonds in good yields under mild conditions.
reaction that is free of base, acid and catalyst, using only 2-methyltetrahydrofuran as additive has been performed. A new family of mono-, di-, tri- and tetra-phosphines compounds are obtained in good to excellent yields by adding diphenylphosphine to alkenes, mono- and polyfunctional acrylics (based on acrylate and methacrylate motifs) and acrylamide substrates. Addition of four equivalent of bio-mass
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