cheminform abstract: suzuki reaction on pyridinium n-haloheteroarylaminides: regioselective...

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2008 General R 0010 Suzuki Reaction on Pyridinium N-Haloheteroarylaminides: Regioselective Syn- thesis of 3,5-Disubstituted 2-Aminopyrazines. — Aminides (VIII) and (XII) can be selectively mono- or dihalogenated through Suzuki reaction. In most cases, the use of K2CO3 affords better results than Cs2CO3. Moreover, the Suzuki process on dihalo derivatives (XII) shows a regioselective arylation at the 3-position. — (CASTILLO, R.; REYES, M. J.; IZQUIERDO, M. L.; ALVAREZ-BUILLA*, J.; Tetrahedron 64 (2008) 7, 1351-1370; Dep. Quim. Org., Univ. Alcala, E-28871 Alcala de Henares, Madrid, Spain; Eng.) — Bartels 36- 099

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Page 1: ChemInform Abstract: Suzuki Reaction on Pyridinium N-Haloheteroarylaminides: Regioselective Synthesis of 3,5-Disubstituted 2-Aminopyrazines

2008

GeneralR 0010 Suzuki Reaction on Pyridinium N-Haloheteroarylaminides: Regioselective Syn-

thesis of 3,5-Disubstituted 2-Aminopyrazines. — Aminides (VIII) and (XII) can be selectively mono- or dihalogenated through Suzuki reaction. In most cases, the use of K2CO3 affords better results than Cs2CO3. Moreover, the Suzuki process on dihalo de-rivatives (XII) shows a regioselective arylation at the 3-position. — (CASTILLO, R.; REYES, M. J.; IZQUIERDO, M. L.; ALVAREZ-BUILLA*, J.; Tetrahedron 64 (2008) 7, 1351-1370; Dep. Quim. Org., Univ. Alcala, E-28871 Alcala de Henares, Madrid, Spain; Eng.) — Bartels

36- 099

Page 2: ChemInform Abstract: Suzuki Reaction on Pyridinium N-Haloheteroarylaminides: Regioselective Synthesis of 3,5-Disubstituted 2-Aminopyrazines

2008

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