Additivity of Electrical Effects in Aromatic Electrophilic Substitutions as Determined by Desilylation Reactions
作者:Robert A. Benkeser、Richard A. Hickner、Donald I. Hoke、Owen H. Thomas
DOI:10.1021/ja01552a070
日期:1958.10
Palladium−Arene Interactions in Catalytic Intermediates: An Experimental and Theoretical Investigation of the Soft Rearrangement between η<sup>1</sup> and η<sup>2</sup> Coordination Modes
作者:Marta Catellani、Carlo Mealli、Elena Motti、Paola Paoli、Enrique Perez-Carreño、Paul S. Pregosin
DOI:10.1021/ja016587e
日期:2002.4.1
characterized by means of NMRspectroscopy. The compound [(C16H19)PdCl]2*CH2Cl2 with ortho and para methyl substituents at the arene has been characterized by means of X-ray diffraction techniques. The C(ipso) atom of the arene lies almost at the fourth planar coordination site of the metal [Pd-C(ipso) = 2.22(1) A (average)], and due to the arene's tilting, the substituted C(ortho) atom is relatively