Wacker-Type Oxidation of Internal Alkenes using Pd(Quinox) and TBHP
作者:Ryan J. DeLuca、Jennifer L. Edwards、Laura D. Steffens、Brian W. Michel、Xiaoxiao Qiao、Chunyin Zhu、Silas P. Cook、Matthew S. Sigman
DOI:10.1021/jo302638v
日期:2013.2.15
The Pd-catalyzed TBHP-mediated Wacker-type oxidation of internal alkenes is reported. The reaction uses 2(4,5-dihydro-2-oxazolyl)quinoline (Quinox) as ligand and TBHP(aq) as oxidant to deliver single ketone constitutional isomer products in a predictable fashion from electronically biased olefins. This methodology is showcased through its application on an advanced intermediate in the total synthesis of the antimalarial drug artemisinin.
A Concise Synthesis of (+)-Artemisinin
作者:Chunyin Zhu、Silas P. Cook
DOI:10.1021/ja3061479
日期:2012.8.22
Malaria represents one of the most medically and economically debilitating diseases present in the world today. Fortunately, there exists a highly effective treatment based on the natural product artemisinin. Despite the development of several synthetic approaches to the natural product, a streamlined synthesis that utilizes low-cost chemical inputs has yet to materialize. Here we report an efficient, cost-effective approach to artemisinin. Key to the success of the strategy was the development of mild, complexity-building reaction cascades that allowed the use of readily available, affordable cyclohexenone as the key starting material.
[EN] TOTAL SYNTHESIS OF ARTEMISININ<br/>[FR] SYNTHÈSE TOTALE D'ARTÉMISININE
申请人:UNIV INDIANA RES & TECH CORP
公开号:WO2012154906A1
公开(公告)日:2012-11-15
The present invention provides a method for manufacturing artemisinin and its congeners from cyclohexenone as a starting material.