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
烯丙基腈是由芳基丙酸与偶氮双(烷基腈)(AIBN或ACCN)反应合成的。在作为催化剂的Cu(OAc)2和作为溶剂的吡啶的存在下,形成了(E)-立体异构体作为主要产物。该转变显示出对烷氧基,卤素,醇,胺,酯和酮官能团的良好耐受性。当在没有铜催化剂的情况下用空间上庞大的胺,乙基二异丙基胺进行反应时,优先形成相应的(Z)-立体异构体。