(Diazomethyl)dimethylphosphine Oxide – A Diazoalkane Reagent for [3+2] Cycloadditions
作者:Evgeniy Y. Slobodyanyuk、Ilona Tarasiuk、Taras Pasichnyk、Dmitriy M. Volochnyuk、Dmytro O. Sibgatulin、Oleksandr O. Grygorenko
DOI:10.1002/chem.202303972
日期:2024.4.22
generation of (diazomethyl)dimethylphosphine – a novel diazoalkane reagent – based on the diazotization reaction under anhydrous conditions is described. The title compound can be prepared as ca. 1.5 M solution in chloroform and can be stored at −18 °C for at least a month. The proposed reagent readily undergoes [3+2] cycloaddition with various electron-poor alkynes and alkenes providing the corresponding
描述了一种基于无水条件下重氮化反应生成(重氮甲基)二甲基膦(一种新型重氮烷试剂)的有效方案。标题化合物可制备为约。 1.5 M 氯仿溶液,可在 -18 °C 下保存至少一个月。该试剂很容易与各种贫电子炔烃和烯烃进行[3+2]环加成,分别提供相应的Me 2 P(O)-取代的吡唑和吡唑啉。
Hagens,W. et al., Recueil des Travaux Chimiques des Pays-Bas, 1969, vol. 88, p. 71 - 85