Room Temperature DBN Initiated Phospha‐Brook Rearrangement of α‐Hydroxyphosphonates to Phosphates
作者:Muskaan Mahandru‐Gill、Aleema Iqbal、Margarita Damai、Francesco Spiedo、Edward K. Kasonde、Daniel Sykes、Kevin G. Devine、Bhaven Patel
DOI:10.1002/ejoc.202201101
日期:2022.11.18
rearrangement from α-hydroxyphosphonates has been optimized producing a range of benzyl phosphate esters in excellent yields by using 1,5-diazabicyclo(4.3.0)non-5-ene at room temperature. Mechanistic studies, using low temperature 31P-NMR, evidence possible formation of an oxaphosphirane intermediate, supporting previous chemical calculations reported.
有机磷酸盐在生理过程中非常重要。通过在室温下使用 1,5-二氮杂双环 (4.3.0)non-5-ene,对 α-羟基膦酸盐的 phospha-Brook 重排进行了优化,以优异的产率生产了一系列磷酸苄酯。使用低温31 P-NMR 的机理研究表明,可能形成了一种氧杂磷烷中间体,这支持了之前报道的化学计算。