摘要:
An easier and more expedient synthesis of 2,6-(BrCH2C6H4)(2)-4-I-C6H3 (2) is reported. This material allowed easy synthesis of the new pincer ligand precursor 2,6-(4-CH3C6H4SCH2C6H4)(2)-4-I-C6H3 (3) in 87% yield. Compound 3 reacts with Pd-2(dba)(3) to give the new palladium pincer complex 4. Compound 4 has been fully characterized, including structural characterization by single crystal X-ray diffraction methods, The results of the crystallographic work on 4 reveal a twisted type pincer complex not unlike related terphenyl pincer complexes. (C) 2009 Elsevier B.V. All rights reserved.