利用DPPA通过Mitsunobu反应取代羟基合成叠氮化物的文章（点击：），但 Mitsunobu反应会生成大量的副产物，不易纯化。下面介绍一种可以得到相同产物的方法，利用DPPA和DBU，可以取代羟基得到构型翻转的叠氮化物，此反应生成副产物 ...

All wines have some volatile acidity, which can add to a wine’s complexity at low levels. At what point does it become a ...

Did you ever take a swig of aspartame-sweetened diet soda and have it taste nasty? Sour, metallic, and vile, but not sweet.