Lewis Acid Catalyzed Synthesis of N-Protected Diphenyl 1-Aminoalkylphosphonates
作者:Achiel Haemers、Pieter Van der Veken、Ibrahim El Sayed、Jurgen Joossens、Christian Stevens、Koen Augustyns
DOI:10.1055/s-2004-837307
日期:——
Diphenyl α-aminomethylphosphonates are prepared in good yields using a Lewis acid catalyzed Birum-Oleksyszyn reaction. This approach enlarges the scope of this reaction, allowing the use of aldehydes and ketones and the use of acid-labile groups in the synthesis of mono-and disubstituted diphenyl 1-aminoalkylphosphonates.
One-pot synthesis of α-aminophosphonates by yttrium-catalyzed Birum–Oleksyszyn reaction
作者:Davide Ceradini、Kirill Shubin
DOI:10.1039/d1ra07718j
日期:——
For the first time, yttrium triflate was used as an efficient green catalyst for the synthesis of α-aminophosphonates through a one-pot three-component Birum–Oleksyszyn reaction. Under the action of this Lewis acid, enhancement of the yield and reaction chemoselectivity was provided by the achievement of an appropriate balance in the complex network of reactions.