作者:Peter Wipf、Srikanth Venkatraman
DOI:10.1016/0040-4039(96)00918-5
日期:1996.7
polyethyleneglycol-linked version of Burgess reagent was developed and applied toward the cyclodehydration of β-hydroxy amides and thioamides. The desired oxazolines and thiazolines were obtained in high yields and excellent purities. The major advantages of the polymer bound reagent are its improved ease of handling and greatly increased yields in the synthesis of labile oxazolines.
开发了与聚乙二醇连接的Burgess试剂,并将其用于β-羟基酰胺和硫代酰胺的环脱水。以高收率和优异的纯度获得了所需的恶唑啉和噻唑啉。聚合物键合试剂的主要优点是其易处理性提高,并且在不稳定的恶唑啉的合成中产率大大提高。