Trioxorhena(VII)carborane Anion and Its Methyl-Substituted Analogue: Synthesis, Structure, DFT, and Catalytic Studies
作者:Kothanda Rama Pichaandi、Phillip E. Fanwick、Mahdi M. Abu-Omar
DOI:10.1021/om201222r
日期:2012.3.12
Synthesis and characterization of trioxorhena(VII)carborane [Bu4N][(η1-C2B9H11)ReO3] (1a) and its methyl-substituted analogue [Bu4N][(7,8-Me2-η1-C2B9H11)ReO3] (1b) are reported. The single-crystal X-ray structures of 1a and 1b display η1 coordination between Re and the carborane cage. Density functional theory computations at B3LYP/LANL2DZ (Gaussian 09 suite) level show that the strong π donor character
The efficient reductive etherification of aromatic or aliphatic aldehydes using a reducing system that combines Zn(OTf)2 with either TMDS or Et3SiH is described. The present reducing system can also be applied to the hydrosilylation of aromatic aldehydes having either a strong electron-withdrawing group or a pyridine ring.