compounds for a highly specific organic reaction by molecular association. When ethyl chloroacetate was treated successively with o-aminobenzenethiol (4) and chloroacetyl isocyanate (1) under mild conditions, triacylurea derivative (9) was obtained in total 84% yield. It was found that the use of “amino acid amide and oxalyl chloride” method led to the formation of diacylurea derivative (11) in high yield
某些类型的酰基
脲衍
生物被制备为模型化合物,用于通过分子缔合进行高度特异性的有机反应。当
氯乙酸乙酯在温和条件下依次用邻
氨基
苯硫醇 (4) 和
氯乙酰异氰酸酯 (1) 处理时,以 84% 的总收率获得三酰
脲衍
生物 (9)。发现使用“
氨基酸酰胺和
草酰氯”方法导致以高产率形成二酰
脲衍
生物(11)。