121st General Meeting of the KCS

Type Poster Presentation
Area Organic Chemistry
Room No. Event Hall
Time 4월 19일 (목요일) 11:00~12:30
Code ORGN.P-377
Subject Palladium-catalyzed Tandem Homo-coupling of Terminal Alkynes and Hydroarylation of Nitropyrazoles
Authors Changhoon Shin, Jung Min Joo1,*
department of chemistry, Pusan National University, Korea
1Department of Chemistry, Pusan National University, Korea
Abstract We have developed a Pd-catalyzed tandem reaction with terminal alkynes and nitropyrazoles. Although terminal alkynes have been considered to be challenging to use in C-H activation of (hetero)arenes because of facile dimerization, we achieved the tandem reaction forming the Pd-alkenyl complex to generate enynyl pyrazoles using diynes as a counterpart of pyrazoles. Depending on the equivalent of terminal alkynes and the type of oxidants, either the hydroarylation or the direct alkynylation occurred through different catalytic cycles.
E-mail hoooon264@gmail.com