Access to 1,3-oxazine-2,4-diones/1,3-thiazine-2,4-diones <i>via</i> organocatalytic CO<sub>2</sub>/COS incorporation into allenamides
作者:Hui Zhou、Rui Wang、Hui Zhang、Wei Chen、Xiao-Bing Lu
DOI:10.1039/c9ob02398d
日期:——
Lewis base-CO2/COS adducts were firstly studied as organocatalysts for [4 + 2] annulation of CO2/COS with allenamides to selectively synthesize 1,3-oxazine-2,4-diones/1,3-thiazine-2,4-diones.