作者:Yannick Landais、Frédéric Robert、Edouard Godineau、Laurent Huet、Nachiket Likhite
DOI:10.1016/j.tet.2013.09.051
日期:2013.11
A sequential carbo-formylation cascade has been developed, involving a free-radical carbo-oximation process, followed by the hydrolysis of the oxime ether. For this purpose, we designed a new SEM O-protected sulfonyl oxime, which enable both rapid radical addition and hydrolysis under mild conditions. The resulting aldehyde-esters were then engaged in various nucleophilic cascades, such as Sakurai
一个顺序碳氮化甲酰化级联已经开发,涉及自由基碳氮化肟化处理,随后是肟醚的水解。为了这个目的,我们设计了一个新的SEM ø -保护的磺酰基肟,其能够在温和条件下既快速基加和水解。然后将所得的醛-酯从事各种亲核级联,如樱井烯丙基化或骨牌向山醇醛缩合/ lactonizations。胺和TMSCN的加成的Strecker反应/内酰胺化以良好的总收率α氰基之后哌啶酮类似于领导。最后,百达-斯宾格勒/内酰胺序列设计,这对打开生物碱eburnan的三环核心的新条目。