Fischer indole cyclization has recently been described as an efficient approach to the synthesis of azaindoles bearing electron-donating groups. We now show that this cascade reaction can be very efficient for the formation of a wider range of 4- and 6-azaindoles by using microwave irradiation.
Fischer
吲哚环化最近被描述为合成带有给电子基团的氮杂
吲哚的有效方法。我们现在表明,通过使用微波辐射,这种级联反应可以非常有效地形成更广泛的 4- 和
6-氮杂吲哚。