34729-69-6Relevant articles and documents
Development of N-Phosphinomethyl-Substituted NHC-Nickel(0) Complexes as Robust Catalysts for Acrylate Salt Synthesis from Ethylene and CO2
Takahashi, Kohei,Cho, Kinryo,Iwai, Asaki,Ito, Tatsuyoshi,Iwasawa, Nobuharu
, p. 13504 - 13508 (2019)
By using a nickel complex with an N-phosphinomethyl-N-heterocyclic carbene ligand (NHC-P), the reducing ability and thermal stability of the complex were improved considerably compared to the previously reported bipyridine and bisphosphine complexes, and acrylate salt was prepared from ethylene and CO2 with the highest TON ever reported for nickel systems even without using metallic zinc. Oxidative cyclization of ethylene and CO2 on the NHC-P nickel complex was found to proceed very rapidly compared to previous systems.
Reduction of functionalized tertiary phosphine oxides with BH3
Sowa, Sylwia,Stankevi?, Marek,Szmigielska, Anna,Ma?uszyńska, Hanna,Kozio?, Anna E.,Pietrusiewicz, K. Micha?
, p. 1672 - 1688 (2015/02/19)
A direct stereoselective conversion of tertiary hydroxyalkylphosphine oxides to the corresponding tertiary hydroxyalkylphosphine-boranes involving facile reduction of the P=O bond by BH3 under mild conditions has been developed. The unprecedented facility of reduction of the strong P=O bond by BH3, a mild reducing agent, has been achieved through an intramolecular P=O···B complexation directed by proximal aα- or β-hydroxy groups present in the phosphine oxide structures. As established by two chemical correlations, the developed transformation of hydroxyalkylphosphine oxides into hydroxyalkylphosphine-boranes takes place with complete inversion of configuration at P.
