electron transfer (SET) and rapid decarboxylation prior to radical–radical recombination. Importantly, decarbonylation is mitigated by this strategy. The initial computational validation on which the process is predicated matches closely with experiment. Synergising organo‐ and photocatalysis activation principles finally expands the mechanistic and synthetic scope of the classic Stetter reaction to include
Efficient construction of highly functionalized pyrrolo[1,2- c ]imidazol-1-ones via a regioselective 1,3-dipolar cycloaddition of imidazolidin-4-ones, aldehydes, and nitroalkenes in one pot
作者:Xia Zhang、Xiaoyan Wang、Yanyang He、Ying Liu、Jie Liu、Jianyou Shi
DOI:10.1016/j.tetlet.2016.01.103
日期:2016.3
A series of novel pyrrolo[1,2-c]imidazol-1-ones were efficiently synthesized via a three-component, regioselective 1,3-dipolarcycloadditionreaction. The azomethine ylides generated in situ from imidazolidin-4-ones and aldehydes reacted with the nitroalkenes to yield the novel pyrrolo[1,2-c]imidazol-1-one derivatives with multiple stereogenic centers in moderate to high yields (up to 99%) and in high
通过三组分,区域选择性的1,3-偶极环加成反应有效地合成了一系列新型的吡咯并[1,2 - c ]咪唑-1-酮。由咪唑啉丁-4-酮和醛原位生成的甲亚胺基亚烷基与硝基烯烃反应,以中等至高产率(高达99%)生成具有多个立体中心的新型吡咯并[1,2 - c ]咪唑-1-酮衍生物)和高非对映选择性(最高达98:2)。环加合物的结构和相对立体化学通过1 H NMR谱和X射线晶体学证实。