Ru‐Catalyzed Switchable
<i>N</i>
‐Hydroxyethylation and
<i>N</i>
‐Acetonylation with Crude Glycerol
作者:Zhuo Xin、Le Jia、Yuxing Huang、Chen‐Xia Du、Yuehui Li
DOI:10.1002/cssc.201903151
日期:2020.4.21
Highly efficient Ru-catalyzed selective C-C or C-O bond cleavage of polyols (e.g., crude glycerol) for N-hydroxyethylation or N-acetonylation of amines was achieved through the hydrogen-borrowing approach. A variety of amines were transformed to the desired amino alcohols/ketones in moderate-to-excellent yields, opening up new avenues for generation of oxygenated pharmaceuticals and fine chemicals
通过氢借入方法实现了多元醇(例如粗甘油)对胺的N-羟乙基化或N-乙酰化的高效Ru催化选择性CC或CO键裂解。各种胺以中等至优异的产率转化为所需的氨基醇/酮,为从可再生原料生产含氧药物和精细化学品开辟了新途径。使用含有双膦/噻吩基甲胺配体的新型氧化还原活性催化剂可使该氢借用体系在碱性和酸性条件下选择性地操作。