<i>N</i>,<i>N</i>-Dimethylformamide as Hydride Source in Nickel-Catalyzed Asymmetric Hydrogenation of α,β-Unsaturated Esters
作者:Siyu Guo、Jianrong (Steve) Zhou
DOI:10.1021/acs.orglett.6b02662
日期:2016.10.21
Asymmetric transfer hydrogenation of α,β-unsaturatedesters is realized by using a nickel/bisphosphine catalyst and N,N-dimethylformamide (DMF) as the hydride source.
Superacid mediated intramolecular condensation: facile synthesis of indenones and indanones
作者:Bokka Venkat Ramulu、Gedu Satyanarayana
DOI:10.1039/c5ra12234a
日期:——
sequential method for the synthesis of indanones is advantageous, as it limits even more electron rich external arenes only to the Friedel–Crafts alkylation. This is not possible in previous reports wherein both cinnamic acid ester and the external arenes are treated together in the presence of an acid, wherein the relatively more reactive arene is preferred to facilitate the acylationstep.