A Bifunctional Reagent Designed for the Mild, Nucleophilic Functionalization of Pyridines
作者:Patrick S. Fier
DOI:10.1021/jacs.7b05414
日期:2017.7.19
the direct functionalization of pyridines. These reactions occur under mild conditions and exhibit broad functional group tolerance, enabling the late-stage functionalization of drug-like molecules. The reagent can be easily prepared on large scale from inexpensive reagents, and reacts in the title reaction with acetonitrile, sodiumchloride, and sodium methanesulfonate as the sole byproducts. Although
Trisubstituted ureas can be synthesized in a one-pot fashion from bench-stable α-chloroaldoxime O-methanesulfonates and secondary amines under mild reaction conditions.
4-Substituted imidazolidin-2-ones were synthesized via the one-pot reaction of bench-stable α-chloroaldoxime O-methanesulfonates and 4-aminobut-2-enoates in the presence of N,N-dimethylaminopyridine. This cascade transformation involved nucleophilic substitution, Tiemann rearrangement and intramolecular Michael addition. The electronic effect of the aryl substituent of the chloroaldoximes played a
N-(sulfonyloxy) benzimidoyl halides as bactericidal or fungicidal agents
申请人:FMC Corporation
公开号:US03983246A1
公开(公告)日:1976-09-28
Agricultural fungicidal compositions based on N-(sulfonyloxy)benzimidoyl halides exhibit a broad spectrum of antifungal activity, particularly against late blight, bean rust and rice blast. The synthesis of representative compounds is described, and the utility of antifungal compositions is exemplified.
DMAP-Catalyzed Domino Reactions of α-Chloroaldoxime O-Methanesulfonates and 2-Aminobenzoic Acids for the Synthesis of Quinazolinediones
作者:Juthanat Kaeobamrung、Watcharadet Kaewman
DOI:10.1055/a-2107-5653
日期:2023.10
α-chloroaldoxime O-methanesulfonates via DMAP-catalyzed domino reactions under mild reaction conditions in one-pot fashion. Chemical transformations involved nucleophilic substitution, Tiemann rearrangement, and cyclic urea formation. The strength of nitrogennucleophile of 2-aminobenzoic acids and the high level of carbon electrophile of α-chloroaldoxime O-methanesulfonates were crucial for the reaction