cheminform abstract: efficient and regioselective access to bis-heterocycles via palladium-catalyzed...
TRANSCRIPT
1999 pyridine derivatives
pyridine derivativesR 0380
34 - 169Efficient and Regioselective Access to Bis-heterocycles via Palladium-Catalyzed Coupling of Organostannanes and Organozincates Derivedfrom C-6 Lithiated 2-Methoxypyridine. — The synthesis of bishetaryls(III) is regioselectively achieved by Pd-catalyzed Stille coupling of hetarylbromides (I) with preformed tributyltinpyridine (II) or via regioselective in situgeneration of 6-bromozinc-2-methoxypyridine. — (GROS, PHILIPPE; FORT,YVES; Synthesis (1999) 5, 754-756; Synth. Org. React., Fac. Sci., CNRS, Univ.Henri Poincare, F-54506 Vandoeuvre-les-Nancy, Fr.; EN)
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