examples of catalysis using nickel complexes have been reported. In this work, the Ni-catalyzed transformation of ortho C-H bonds utilizing chelation assistance, such as oxidative cycloaddition of aromatic amides with alkynes, has been achieved.
Substituted 4-Amino-Quinazoline Compounds with Metabotropic Glutamate Receptor Regulating Activity and Uses Thereof
申请人:REICH Melanie
公开号:US20090069320A1
公开(公告)日:2009-03-12
Substituted 4-amino-quinazoline compounds corresponding to formula I
methods for their production, pharmaceutical compositions containing these compounds as active agents, and the uses thereof for treating or inhibiting disorders or disease states.
An efficient method for N-acylation of amides is described using a pyridine ring as the internal nucleophilic catalyst to give imides in moderate to excellent yields. The methodology provides a facile, air insensitive, and environmentally friendly route to form diversified imide scaffolds, which exist widely in natural products and biologically active materials.
Direct Arylation of Imidazo[1,5-<i>a</i>]azines Through Ruthenium and Palladium Catalysis
作者:Daniela Sustac Roman、Valentin Poiret、Guillaume Pelletier、André B. Charette
DOI:10.1002/ejoc.201403268
日期:2015.1
The regioselective RuII-catalyzed direct ortho-arylation of C-3 aryl-substituted imidazo[1,5-a]azines with (hetero)aryl halides was investigated. The employment of RuII and PdII catalysts in the same flask resulted in two sequential and distinct C–H bond arylations, which allowed the rapid synthesis of highly conjugated compounds.
Cobalt-Catalyzed Carbonylative Synthesis of Phthalimides from <i>N</i>-(Pyridin-2-ylmethyl)benzamides with TFBen as the CO Source
作者:Lu-Yang Fu、Jun Ying、Xiao-Feng Wu
DOI:10.1021/acs.joc.9b01890
日期:2019.10.4
A cobalt-catalyzed direct carbonylative synthesis of phthalimide motifs from N-(pyridin-2-ylmethyl)benzamides has been developed. Various phthalimide derivatives were obtained in moderate to excellent yields (up to 98%) by using 2-picolylamine as an efficient directing group and benzene-1,3,5-triyl triformate (TFBen) as a convenient CO surrogate.