Site-Selective C–H Functionalization of (Hetero)Arenes via Transient, Non-symmetric Iodanes
作者:Stacy C. Fosu、Chido M. Hambira、Andrew D. Chen、James R. Fuchs、David A. Nagib
DOI:10.1016/j.chempr.2018.11.007
日期:2019.2
A strategy for C–Hfunctionalization of arenes and heteroarenes has been developed to allow site-selective incorporation of various anions, including Cl, Br, OMs, OTs, and OTf. This approach is enabled by in situ generation of reactive, non-symmetric iodanes by combining anions and bench-stable PhI(OAc)2. The utility of this mechanism is demonstrated via para-selective chlorination of medicinally relevant
Amination of Aromatic Halides and Exploration of the Reactivity Sequence of Aromatic Halides
作者:Chu Yang、Feng Zhang、Guo-Jun Deng、Hang Gong
DOI:10.1021/acs.joc.8b02588
日期:2019.1.4
A base-promoted amination of aromatic halides has been developed using a limited amount of dimethylformamide (DMF) or amine as an amino source. Various arylhalides, including F, Cl, Br, and I, have been successfully aminated in good to excellent yields. Although the amination of aromatic halides with amines or DMF is usually considered as an aromatic nucleophilic substitution (SNAr) process, and the
protocol for the synthesis of 1-heteroaryl-4-(N-methyl)aminopiperidines starting from heteroaryl chloride derivatives is described. A broad range of 1-heteroaryl-4-(N-Boc-N-methyl)aminopiperidine derivatives were obtained in good to excellent yields using DavePhos as optimal ligand for Pd-catalyzed Buchwald-Hartwigamination reaction. After a mild and efficient acidolysis the amination products could
A Novel One-Pot Synthesis of N,N-Dimethylaminopyridines by Diazotization of Aminopyridines in Dimethylformamide in the Presence of Trifluoromethanesulfonic Acid
作者:A. N. Sanzhiev、M. I. Potapova、E. A. Krasnokutskaya、V. D. Filimonov
DOI:10.1134/s1070428020060093
日期:2020.6
reaction is accelerated under microwaveirradiation. A novel one-pot procedure has been proposed for the synthesis of 2- and 4-(dimethylamino)pyridines from commercially available aminopyridines. The procedure provides high yields of the target products, and it can be regarded as an alternative to the known methods of synthesis of N,N-dimethylpyridin-4-amine (DMAP) widely used as base catalyst in organic
COMPOUNDS AND COMPOSITIONS FOR THE TREATMENT OF PARASITIC DISEASES
申请人:BIGGART Agnes
公开号:US20150175613A1
公开(公告)日:2015-06-25
The present invention provides compounds of Formula A:
or a pharmaceutically acceptable salt, tautomer, or stereoisomer, thereof, wherein the variables are as defined herein. The present invention further provides pharmaceutical compositions comprising such compounds and methods of using such compounds for treating, preventing, inhibiting, ameliorating, or eradicating the pathology and/or symptomology of a disease caused by a parasite, such as leishmaniasis, human African trypanosomiasis and Chagas disease.