medicinal chemistry and organic synthesis is known. An efficient route to γ-keto sulfones through a metal-free reaction of cyclopropanols, sulfur dioxide and electron-deficient olefins is achieved. This reaction proceeds smoothly under mild conditions without the need of catalyst, oxidant or additive. A plausible mechanism is proposed, which undergoes through γ-keto sulfinate intermediate generated
Nickel-Catalyzed Reductive Cross-Coupling of Aryl Bromides with Vinyl Acetate in Dimethyl Isosorbide as a Sustainable Solvent
作者:Mincong Su、Xia Huang、Chuanhu Lei、Jian Jin
DOI:10.1021/acs.orglett.1c04018
日期:2022.1.14
nickel-catalyzed reductive cross-coupling has been achieved using (hetero)arylbromides and vinyl acetate as the coupling partners. This mild, applicable method provides a reliable access to a variety of vinyl arenes, heteroarenes, and benzoheterocycles, which should expand the chemical space of precursors to fine chemicals and polymers. Importantly, a sustainable solvent, dimethyl isosorbide, is used
Scandium-catalyzed Michael addition of quinazolinones and vinylazaarenes
作者:Zhiguang Zhang、Siwei Dai、Ling Li、Chenyu Jia、Yong Zhang、Hao Li
DOI:10.1016/j.tetlet.2020.151926
日期:2020.6
We described a novel scandium-catalyzed selective Michaeladdition of quinazolinones and vinylazaarenes. The protocol proceeds smoothly to give diverse quinazolinone derivatives in moderate to excellent yields. The high practicality of this protocol was proved by excellent chemo selectivity and broad substrate and functional group compatibility.