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
DOI:10.1002/(sici)1521-3773(19980817)37:15<2090::aid-anie2090>3.0.co;2-a
日期:1998.8.17
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 Cs2 CO3 can be used as the base [Eq. (a)]. R=alkyl, aryl, MeCO, MeO; X=Br, I.
一种罕见的,结构上的特征μ 1,η 1个-hydrazonato复杂是腙的Pd催化的N-芳基化的可能的中间。从芳基卤化物开始,反应在螯合膦配体(L 2)的温和条件下有效地进行。甚至Cs 2 CO 3也可以用作碱[式。(一种)]。R =烷基,芳基,MeCO,MeO; X = Br,我。