Studies of the Synthesis of Diethyl Cyclopropylphosphonate and Its Thio and Seleno Analogs
作者:Yossi Zafrani、Ravit Chen、Nissan Ashkenazi、Yoffi Segall
DOI:10.1080/00397910701845332
日期:2008.2.1
cyclopropylphosphonite, followed by oxidation with sodium periodate to the corresponding phosphonate. Alternatively, diethyl cyclopropylphosphonite was reacted with elemental sulfur or selenium to give the thio and seleno analogs, respectively. The second method involves exclusive 1,3‐elimination of HBr from diethyl 3‐bromopropylphosphonate. This method can be directed to either the 1,2‐ or the 1,3‐elimination reaction
摘要 描述了合成未取代的环丙基膦酸二乙酯的两种方法。一种方法是环丙基溴化镁与氯亚磷酸二乙酯反应生成环丙基亚膦酸二乙酯,然后用高碘酸钠氧化成相应的膦酸酯。或者,二乙基环丙基亚膦酸酯与元素硫或硒反应,分别得到硫代和硒代类似物。第二种方法涉及从 3-溴丙基膦酸二乙酯中独家 1,3-消除 HBr。该方法可用于 1,2- 或 1,3- 消除反应,根据所使用的溶剂产生丙烯基膦酸酯或环丙基膦酸酯。