2,3,3-Tricyano-4-[2-(4-methoxy-phenyl)-5-methyl-1,1-dioxo-1,2-dihydro-1λ6-[1,2]thiazin-3-yl]-butyronitrile 以
二甲基亚砜 为溶剂,
反应 24.0h,
以56%的产率得到2,3-Dicyano-4-[2-(4-methoxy-phenyl)-5-methyl-1,1-dioxo-1,6-dihydro-2H-1λ6-[1,2]thiazin-(3E)-ylidene]-but-2-enenitrile