A transition metal-free approach towards synthesis of β-carboline tethered 1,3,4-oxadiazoles <i>via</i> oxidative C–O bond formation
作者:Dharmender Singh、Sandip Kumar Tiwari、Virender Singh
DOI:10.1039/c8nj04294b
日期:——
efficient protocol has been developed for one-pot synthesis of biologically interesting β-carboline substituted 1,3,4-oxadiazoles via an I2-assisted oxidative C–O bond formation strategy. This metal-free sequential approach is found to be compatible with diversely substituted 1-formyl β-carbolines and aromatic as well as aliphatic hydrazides, providing access to a variety of multifunctional β-carboline linked
已经开发了一种有效的方案,可通过I 2辅助氧化C–O形成策略一锅合成生物上有趣的β-咔啉取代的1,3,4-恶二唑。发现这种无金属的顺序方法可与各种取代的1-甲酰基β-咔啉,芳族化合物以及脂肪族酰肼兼容,从而可以使用多种多功能的β-咔唑连接的1,3,4-恶二唑衍生物优异的产量。发现该方法适用于克-羰基取代的1,3,4-恶二唑衍生物的克规模合成。另外,β-咔啉C1连接的2-氨基-1,3,4-恶二唑和双-1,3,4-恶二唑也使用相同的策略合成。