Heterocycles

Two-stage sonogashira coupling method in the synthesis of auxin active acetylenes

…, B Irminger, A Schueckenboehmer, Y Laime, P Mueller

Index: Wayne Craig; Eberle, Martin; Irminger, Bruno; Schueckenboehmer, Anegret; Laime, Yvette; Mueller, Patrick Heterocycles, 2007 , vol. 71, # 9 p. 1967 - 1974

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Citation Number: 8

Abstract

Résumé/Abstract-A sequential Sonogashira coupling of a protected acetylene precursor with aryl halides (5) followed by pyrazolyl iodides (14) allows efficient access to the unsymmetrical aryl-heteroarylacetylene (8). Subsequent regioselective lithiation ...

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