Abstract
A short and efficient route to synthesis of a series of N-dichloroacetyl diazabicyclo derivatives has been developed. The compounds were obtained by cycloaddition of levulinic acid or ester with diamine, followed by acylation with dichloroacetyl chloride. All products were characterized by IR, 1H NMR, 13C NMR, MS, and elemental analysis. The single crystal of compound 4c was determined by X-ray crystallographic analysis. All compounds were tested for their herbicide safeners activity of protecting maize from injury with acetochlor.
摘要:已开发出一种合成一系列N-二氯乙酰二氮杂双环衍生物的简短高效路线。该化合物是通过戊酮酸或酯与二胺的环加成反应,随后与二氯乙酰氯的酰化得到的。所有产物均通过红外光谱、1H核磁共振、13C核磁共振、质谱和元素分析进行了表征。化合物4c的单晶通过X射线晶体学分析确定。所有化合物均进行了对保护玉米免受乙草胺伤害的除草剂安全剂活性测试。