Silver-Catalyzed Minisci Reactions Using Selectfluor as a Mild Oxidant
作者:Jordan D. Galloway、Duy N. Mai、Ryan D. Baxter
DOI:10.1021/acs.orglett.7b02706
日期:2017.11.3
A new method for silver-catalyzed Minisci reactions usingSelectfluor as a mild oxidant is reported. Heteroarenes and quinones both participate in radical C–H alkylation and arylation from a variety of carboxylic and boronic acid radical precursors. Several oxidatively sensitive and highly reactive radical species are successful, providing structures that are challenging to access by other means.
C−H Cyanation of 6-Ring N-Containing Heteroaromatics
作者:Bryony L. Elbert、Alistair J. M. Farley、Timothy W. Gorman、Tarn C. Johnson、Christophe Genicot、Bénédicte Lallemand、Patrick Pasau、Jakub Flasz、José L. Castro、Malcolm MacCoss、Robert S. Paton、Christopher J. Schofield、Martin D. Smith、Michael C. Willis、Darren J. Dixon
DOI:10.1002/chem.201703931
日期:2017.10.20
them have the potential for far‐reaching impact across synthetic chemistry and the biomedical sciences. Herein, we report an approach to heteroaromatic C−H cyanation through triflic anhydrideactivation, nucleophilicaddition of cyanide, followed by elimination of trifluoromethanesulfinate to regenerate the cyanated heteroaromatic ring. This one‐pot protocol is simple to perform, is applicable to a broad
FeSO4-mediated direct arylation of heteroarenes with arylboronic acids in the presence of K2S2O8 has been developed. A slow addition of an aqueous solution of an iron complex was crucial in the ary...
PROCESS FOR PREPARING SUBSTITUTED PYRAZINE COMPOUNDS
申请人:Abbott Laboratories
公开号:EP1023278A1
公开(公告)日:2000-08-02
[EN] PROCESS FOR PREPARING SUBSTITUTED PYRAZINE COMPOUNDS<br/>[FR] PROCEDE DE PREPARATION DE COMPOSES DE PYRAZINE SUBSTITUES
申请人:ABBOTT LABORATORIES
公开号:WO1999019314A1
公开(公告)日:1999-04-22
(EN) The present invention relates to novel intermediate, processes, and novel pyrazine compounds which are ultimately useful in the preparation of chemicals and pharmaceuticals.(FR) La présente invention concerne de nouveaux intermédiaires, des procédés et de nouveaux composés de pyrazine qui présentent une grande utilité dans la préparation de produits chimiques et pharmaceutiques.