Mild Condition for the Deoxygenation of α-Heteroaryl-Substituted Methanol Derivatives
作者:Na Meng、Wensheng Yu、Takao Suzuki、Maofen Chen、Zhiqi Qi、Bin Hu、Jianming Bao、John S. Debenham、Robert Mazzola、Joseph L. Duffy
DOI:10.1021/acs.joc.1c00067
日期:2021.4.16
deoxygenation of substituted methanol derivatives has been identified. This metal-free process was found to proceed well on secondary or tertiary alcohols substituted with one or two heteroaryl groups, and it tolerates acid-sensitive heterocycles. This condition works for methanol derivativessubstituted with 2-pyridyl, 4-pyridyl, or other heterocyclic groups, allowing the negative charge formed during
已经确定了通过PPh 3 / I 2 /咪唑使取代的甲醇衍生物脱氧的温和条件。发现这种无金属的方法在被一个或两个杂芳基取代的仲或叔醇上可以很好地进行,并且可以耐受酸敏感的杂环。此条件适用于被2-吡啶基,4-吡啶基或其他杂环基取代的甲醇衍生物,从而使反应过程中形成的负电荷共振成氮原子。在该条件下,被3-吡啶基或杂环基取代的甲醇衍生物不允许在反应过程中形成的负电荷共振到氮原子上。