作者:Uranbaatar Erdenebileg、Inger Høstmark、Karina Polden、Leiv K. Sydnes
DOI:10.1021/jo4026308
日期:2014.2.7
reaction with secondary amines followed by treatment with acid in a mixture of THF and water. The stability of the furfurals depends to some extent on the nature of the amino group, whereas the reactivity has been shown to be reagent-dependent. When treated with phosphorus ylids, the expected alkenes are formed with E configuration in high yields, but when exposed to nitroalkanes under basic conditions
通过与仲胺反应,然后在THF和水的混合物中用酸处理,已将γ-羟基α,β-不饱和炔基酮转化为4-氨基取代的糠醛。糠醛的稳定性在一定程度上取决于氨基的性质,而反应性已显示出是试剂依赖性的。当用磷化氢处理时,预期的烯烃以高收率形成E构型,但是当在碱性条件下暴露于硝基烷烃(亨利反应)时,尽管发生收率低,但似乎会发生异常转化,并获得了2-酰化的呋喃,而不是硝基烷醇。