Hydrophosphinylation of Unactivated Terminal Alkenes Catalyzed by Nickel Chloride
作者:Stéphanie Ortial、Henry C. Fisher、Jean-Luc Montchamp
DOI:10.1021/jo4008749
日期:2013.7.5
The room-temperature hydrophosphinylation of unactivated monosubstituted alkenes using phosphinates (ROP(O)H2) and catalytic NiCl2 in the presence of dppe is described. The method is competitive with prior palladium-catalyzed reactions and uses a much cheaper catalyst and simple conditions. The scope of the reaction is quite broad in terms of unactivated terminal olefins, proceeds at room temperature
AIBN-Initiated Radical Reactions of Ethyl Phosphinate
作者:Jean-Luc Montchamp、Monika Antczak
DOI:10.1055/s-2006-950203
日期:——
Ethyl phosphinate adds to alkenes and alkynes under thermal radical conditions with AIBN as the initiator.
亚膦酸乙酯在以 AIBN 作为引发剂的热自由基条件下与烯烃和炔烃加成。
Temporary Protection of<i>H</i>-Phosphinic Acids as a Synthetic Strategy
作者:Laëtitia Coudray、Jean-Luc Montchamp
DOI:10.1002/ejoc.200900694
日期:2009.9
H-Phosphinates obtained through various methodologies are protected directly via reaction with triethyl orthoacetate. The resulting products can be manipulated easily, and various synthetic reactions are presented. For example, application to the synthesis of aspartate transcarbamoylase (ATCase) or kynureninase inhibitors are illustrated. Other reactions, such as Sharpless' asymmetric dihydroxylation
Recent advances in phosphorus–carbon bond formation: synthesis of H-phosphinic acid derivatives from hypophosphorous compounds
作者:Jean-Luc Montchamp
DOI:10.1016/j.jorganchem.2004.10.005
日期:2005.5
This account summarizes the research conducted in our laboratory over the past five years. New methodologies were devised for the formation of P–C bonds with a focus on the reactions of hypophosphorous acid derivatives. Three types of reactions have been developed: palladium-catalyzed cross-coupling, room-temperature radical addition, and palladium-catalyzed addition. Our results are summarized in
synthesized in moderate yield from readily available omega-amino-H-phosphinates and aldehydes or ketones via an intramolecular Kabachnik-Fields reaction. The products are conformationallyrestricted phosphinic analogs of alpha-amino acids. The multigram-scale syntheses of the H2N(CH2)(n)PO2H2 phosphinic precursors (n = 1, 2, 3) and some derivatives are also described.