A Practical Method for Synthesis of Stable Phosphorus Ylides in the Presence of Polyacrylamide in Aqueous Media
作者:Reza Heydari、Malek Taher Maghsoodlou、Razieh Nejat Yami
DOI:10.1080/10426500801967914
日期:2008.9.15
Stable crystalline phosphorus ylides were obtained in good to excellent yields from the 1:1:1 addition reaction between triphenylphosphine, dialkyl acetylenedicarboxylates and β -dicarbonyl or heterocyclic compounds such as, diethyl malonate, acetyl acetone, 1, 3-dimethylbarbituric acid, meldrum's acid, 2-benzoxazolinone, pyrrole-2-carboxaldehyde, benzotriazole, 5-methyl benzotriazole, and 5-chloro
从三苯基膦、乙炔二羧酸二烷基酯和 β-二羰基或杂环化合物(例如丙二酸二乙酯、乙酰丙酮、1, 3-二甲基巴比妥酸、meldrum 酸)之间的 1:1:1 加成反应中获得了稳定的结晶磷叶立德、2-苯并恶唑啉酮、吡咯-2-甲醛、苯并三唑、5-甲基苯并三唑和5-氯苯并三唑,聚丙烯酰胺存在于水中。绿色温和的反应条件、中短反应时间、低成本、易制备是该方法的主要优点。