Synthesis, Structure, and Reactivity of a Palladium Hydrazonato Complex: A New Type of Reductive Elimination Reaction To Form C−N Bonds and Catalytic Arylation of Benzophenone Hydrazone

作者：John F. Hartwig · 发表于：Angewandte Chemie International Edition · 年份：1998 · DOI：10.1002/(sici)1521-3773(19980817)37:15<2090::aid-anie2090>3.0.co;2-a · 被引用次数：164 · 研究领域：Catalytic Cross-Coupling Reactions、Catalytic C–H Functionalization Methods、Click Chemistry and Applications

A rare, structurally characterized μ1,η1-hydrazonato complex is a probable intermediate in the Pd-catalyzed N-arylation of hydrazones. Starting from aryl halides the reaction proceeds efficiently and under mild conditions with chelating phosphane ligands (L2); even Cs2CO3 can be used as the base [Eq. (a)]. R=alkyl, aryl, MeCO, MeO; X=Br, I.