<i>N</i>-Heterocarbene Palladium Complexes with Dianisole Backbones: Synthesis, Structure, and Catalysis
作者:Dong-Hui Li、Xu-Xian He、Chang Xu、Fei-Dong Huang、Ning Liu、Dong-Sheng Shen、Feng-Shou Liu
DOI:10.1021/acs.organomet.9b00230
日期:2019.6.24
C1–C5, bearing dianisole backbones and substituted N-aryl moieties have been synthesized and characterized. The electronic effect as well as the steric environment of the NHC ligands has been assessed. The synthesized palladium complexes were applied for Suzuki–Miyaura cross-coupling reactions under aerobic conditions. The relationship between the catalytic structure and catalytic performance was then
The site-selectivity and mechanism of Pd-catalyzed C(sp<sup>2</sup>)–H arylation of simple arenes
作者:Daeun Kim、Geunho Choi、Weonjeong Kim、Dongwook Kim、Youn K. Kang、Soon Hyeok Hong
DOI:10.1039/d0sc05414c
日期:——
functionalization reactions in organic synthesis. Despite the seminal breakthrough of the Pd-catalyzed C(sp2)–H arylation of simple arenes via a concerted metalation–deprotonation (CMD) pathway in 2006, understanding the site-selectivity of the reaction still remains elusive. Here, we have comprehensively investigated the scope, site-selectivity, and mechanism of the Pd-catalyzed direct C–H arylation reaction of
Novel naphthyl-substituted .alpha.-amino acid derivatives, pharmaceutical compositions containing the same and a method of using the same, for the blockade of aspartate and glutamate receptors, are described. Novel intermediates of the napthyl-substituted .alpha.-amino acid derivatives are disclosed.
Mechanochemical solid state single electron transfer from reduced organic hydrocarbon for catalytic aryl-halide bond activation
作者:Amit Biswas、Anup Bhunia、Swadhin K. Mandal
DOI:10.1039/d2sc06119h
日期:——
act as a super reductant in the solid state to activate strong bonds by solid-state single electron transfer (SSSET) under the influence of mechanical energy leading to a catalytic strategy based on the mechano-SSSET or mechanoredox process. Here, we investigate the solid-state synthesis of the super electron donor phenalenyl anion in a ball mill and its application as an active catalyst in strong bond