Sequential Ruthenium Catalysis for Olefin Isomerization and Oxidation: Application to the Synthesis of Unusual Amino Acids
作者:Marc Liniger、Yiyang Liu、Brian M. Stoltz
DOI:10.1021/jacs.7b08496
日期:2017.10.4
How can you use a ruthenium isomerization catalyst twice? A ruthenium-catalyzed sequence for the formal two-carbon scission of allyl groups to carboxylic acids has been developed. The reaction includes an initial isomerization step using commercially available ruthenium catalysts followed by in situ transformation of the complex to a metal-oxo species, which is capable of catalyzing subsequent oxidation
如何两次使用钌异构化催化剂?已经开发了一种钌催化的烯丙基正式两碳断裂成羧酸的序列。该反应包括使用市售钌催化剂的初始异构化步骤,然后将配合物原位转化为能够催化后续氧化反应的金属-氧类物质。该方法使具有挑战性的α-三取代和四取代α-氨基酸的对映选择性合成成为可能,包括抗癫痫药物左乙拉西坦的权宜之计全合成。