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合成α-芳基-β-硝基乙基膦酸酯的新方法
A New Method to Synthesize a-Aryl-p-Nitroethylphosphonates
【摘要】 本文研究了酸性亚磷酸酯与α-芳基-β-硝基烯烃在三甲基氯硅烷和缚酸剂存在下的Arbuzov-Michael反应。不需制备硅烷化的亚磷酸酯,即可得到产率高的Ia-n,其结构由元素分析、IR、1H NMR和MS证实。这类分子中磷原子上的O,O-二烷基为磁不等价基团的结论亦为X-射线晶体结构分析所证实。
【Abstract】 This paper reports a one-pot reaction of the Arbuzov-Michael addition of acidic phosphites to α-aryl-β-nitroalkenes. The reaction was carried out smoothly with an excess of trimethylchlorosilane and acid-binding agents, giving high yields of addition products I a-n . The structures of these compounds were characterized by elemental analysis, IR, 1H NMR and MS. It was found that in these molecules the O,O-dialkyl groups on the phosphorus atom were unequivalent. This fact was also confirmed by the X-ray structure determination of one representative compound, I j.
【Key words】 Phosphite; α-Aryl-β-nitroalkene; Trimethylchlorosilane; α-Aryl-β- nitroethylphosphonates;
- 【文献出处】 高等学校化学学报 ,Chemical Research In Chinese Universities , 编辑部邮箱 ,1989年04期
- 【被引频次】3
- 【下载频次】69