Evidence for the Role of Tetramethylethylenediamine in Aqueous Negishi Cross-Coupling: Synthesis of Nonproteinogenic Phenylalanine Derivatives on Water
作者:Andrew J. Ross、Frank Dreiocker、Mathias Schäfer、Jos Oomens、Anthony J. H. M. Meijer、Barry T. Pickup、Richard F. W. Jackson
DOI:10.1021/jo102334c
日期:2011.3.18
ne (TMEDA) cluster cation 3 has been determined in the gasphase by a combination of tandem mass spectrometry, infrared multiphoton dissociation (IRMPD) spectroscopy, and DFT calculations. Both sets of experimental results establish the existence of a strongly stabilizing interaction of TMEDA with the zinc cation. High-level DFT calculations on the alkylzinc−TMEDA cluster cation 3 allowed the identification