Abnormal Ring Opening of 1,2-Epoxyalkyldiphenylphosphine Oxides with Lithium Aluminum Hydride to Form 2-Hydroxy-alkyldiphenylphosphine Oxides
作者:Hiroyuki Imoto、Mitsuji Yamashita
DOI:10.1055/s-1988-27557
日期:——
Ring opening of 1,2-epoxyalkyldiphenylphosphine oxides with LiAlH4 gives 2-hydroxyalkyldiphenylphosphine oxides in good yield. This is the first example of ring opening of 1,2-epoxyalkyldiphenylphosphine oxides to give the corresponding 2-hydroxy derivatives.
Disclosed herein is the first protocol for the electrochemically oxidative phosphating of aldehydes and ketones to generate α-hydroxyphosphine oxides with diphenylphosphine as the phosphine source. Various phosphating products containing P–C bonds are basically assembled in modest to excellent yields. This electrochemical phosphating was achieved by utilizing a simple undivided cell with foam nickel
Reduction of Functionalized Tertiary Phosphine Oxides with BH<sub>3</sub>
作者:Sylwia Sowa、Marek Stankevič、Anna Szmigielska、Hanna Małuszyńska、Anna E. Kozioł、K. Michał Pietrusiewicz
DOI:10.1021/jo502623g
日期:2015.2.6
A direct stereoselective conversion of tertiary hydroxyalkylphosphine oxides to the corresponding tertiary hydroxyalkylphosphineboranes 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 center dot center dot center dot B complexation directed by proximal alpha- or beta-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.
Nurtdinov, S. Kh.; Kashirskaya, I. M.; Ismagilova, N. M., Journal of general chemistry of the USSR, 1980, vol. 50, # 6, p. 1049 - 1052
作者:Nurtdinov, S. Kh.、Kashirskaya, I. M.、Ismagilova, N. M.、Gubaidullina, R. Sh.、Zykova, T. V.、et al.