Nitrogen Heterocycles via Palladium-Catalyzed Carbocyclization. Formal Synthesis of (+)-α-Allokainic Acid
作者:Gregory R. Cook、Liangdong Sun
DOI:10.1021/ol049087+
日期:2004.7.1
investigated and found to be highly dependent on the phosphine ligand as well as the presence of coordinating counterions. Nitrogen heterocycles were formed without erosion of the stereochemical integrity. The utility of the lactam products was demonstrated by the formal synthesis of (+)-alpha-allokainic acid.
[反应:见正文]研究了Pd催化的酮酰胺的碳环化,并高度依赖于膦配体以及配位抗衡离子的存在。在不破坏立体化学完整性的情况下形成了氮杂环。内酰胺产品的效用通过(+)-α-链烷二酸的正式合成得到证明。