作者:N. A. Bondarenko、O. K. Bozhko、E. N. Tsvetkov
DOI:10.1007/bf00696974
日期:1995.1
Asymmetric P,P-dialkyl-P',P'-diphenylethylenediphosphine dioxides were synthesized by the addition of dialkylphosphinous acids to diphenylvinylphosphine oxide in toluene without a catalyst and in DMSO in the presence of concentrated aqueous alkali. The method for isolating dipropyl- and dibutylphosphinous acids obtained by reactions of diethylphosphite with the corresponding alkylmagnesium bromides was improved.