Metal-Free-Catalyzed Synthesis of Allyl Nitriles via C<sub>sp<sup>2</sup></sub>–C<sub>sp<sup>3</sup></sub> Coupling between Olefins and Azobis (Alkyl-carbonitrile)
The metal-free-catalyzed synthesis of allyl nitriles from Csp2-Csp3 coupling between olefins and azobis was carried out. Key on this work was that the synthesis of allyl nitriles directly using olefin as a starting material was considered to be more efficient and economical than the alkyne, alkynyl carboxylic acid, or cinnamic acid used in previous works. Moreover, in this reaction, iodine served as
Selective Synthesis of (<i>E</i>)- and (<i>Z</i>)-Allyl Nitriles via Decarboxylative Reactions of Alkynyl Carboxylic Acids with Azobis(alkylcarbonitriles)
作者:Francis Mariaraj Irudayanathan、Sunwoo Lee
DOI:10.1021/acs.orglett.7b00860
日期:2017.5.5
Allyl nitriles were synthesized from the reactions of arylpropiolic acids with azobis(alkylcarbonitriles) (AIBN or ACCN). In the presence of Cu(OAc)2 as a catalyst and pyridine as the solvent, the (E)-stereoisomer was formed as the major product. This transformation shows good tolerance toward alkoxy, halogen, alcohol, amine, ester, and ketone functional groups. When the reaction was conducted with