33630-20-5Relevant academic research and scientific papers
Synthesis of mono- and diaza-'pyridones' via stille coupling of alkoxystannanes
Smith, Charlotte L.,Hirschh?user, Christoph,Malcolm, Georgia K.,Nasrallah, Daniel J.,Gallagher, Timothy
, p. 1904 - 1908 (2014/08/18)
Various alkoxy-substituted heterocyclic stannanes provide access to the corresponding substituted 'pyridone' moieties via Stille cross-coupling. Both pyridyl and a series of diazinyl stannanes are prepared, and options for unmasking (via demethylation or debenzylation) of the pyridone unit are evaluated. Georg Thieme Verlag Stuttgart. New York.
Pd(II)-Catalyzed ortho-trifluoromethylation of arenes using TFA as a promoter
Wang, Xisheng,Truesdale, Larry,Yu, Jin-Quan
supporting information; experimental part, p. 3648 - 3649 (2010/05/15)
"Chemical equation presented" A Pd(II)-catalyzed C-H activation/trifluoromethylation of arenes with an electrophilic trifluoromethylation reagent using diverse heterocycle directing groups is reported. The presence of trifluoroacetic acid is crucial for this catalytic reaction.
Microwave-assisted, efficient and regioselective Pd-catalyzed C-phenylation of halopyrimidines
Ceide, Susana Conde,Montalban, Antonio Garrido
, p. 4415 - 4418 (2007/10/03)
We herein report that flash heating microwave irradiation is a helpful tool in the formation of arylpyrimidines from the corresponding halopyrimidines. The palladium-catalyzed cross-coupling reactions of 2,4-di- and 2,4,5-trihalopyrimidines with phenylboronic acid under the above conditions are described. By use of the appropriate catalyst and the adequate halopyrimidine, good regioselectivity can be achieved in the 2-, 4-, or 5-positions of the heterocycle. In addition, we show that this methodology is ameneable for the stepwise preparation of mono-, di-, and triphenylpyrimidines.
Synthesis of new polyaza heterocycles. Part 42: Diazines
Darabantu, Mircea,Boully, Ludovic,Turck, Alain,Plé, Nelly
, p. 2897 - 2905 (2007/10/03)
Using Pd-catalyzed Stille cross-coupling reactions, we report here the synthesis of various mono- or bis(tri-n-butylstannyl)diazines which were reacted with various halogenated diazines to access to various polyaza heterocyclic derivatives.
