A Practical Ruthenium-Catalyzed Cleavage of the Allyl Protecting Group in Amides, Lactams, Imides, and Congeners
作者:Benito Alcaide、Pedro Almendros、Jose M. Alonso
DOI:10.1002/chem.200501227
日期:2006.3.20
deprotection of N-allylic amide-like moieties was developed. The first examples accounting for the ruthenium-catalyzed deallylation of amides, lactams, imides, pyrazolidones, hydantoins, and oxazolidinones have been achieved by the sequential use of Grubbs carbene (isomerization step) and RuCl(3) (oxidation step). A variety of substrates, including enantiopure multifunctional beta- and gamma-lactams, can
开发了一种方便的方法,用于脱保护N-烯丙基酰胺样部分。通过顺序使用Grubbs卡宾(异构化步骤)和RuCl(3)(氧化步骤)获得了第一个实例,说明了钌催化的酰胺,内酰胺,酰亚胺,吡唑烷酮,乙内酰脲和恶唑烷酮的脱羧反应。可以使用多种底物,包括对映纯多功能β-和γ-内酰胺。