Synthesis and structure of [Ru(PPh3)2(bipy)(MeCN)Cl][BPh4] and it's catalytic property towards regioselective and stereoselective allylation of phenols
The compound, [Ru(PPh3)2(bipy)(MeCN)Cl][BPh4] (1) has been synthesized from the precursor complex, [Ru(bipy)(PPh3)2Cl2]. The complex has been structurally characterized. This complex has been found to be an efficient catalyst for the regioselective allylation of phenols.
Here, we describe one simple Ir/hydrosilane catalytic system for chemoselective isomerization of 2-substituted allylic ethers. This facile strategy shows high efficiency towards a variety of substrates, including derivatives from bioactive molecules. The substituent at the α position of the olefins is supposed to be critical in retarding the alkene hydrosilylation process and leading the reaction to
Über die sogenannte anomale C<scp>LAISEN</scp>-Umlagerung. 2. Mitteilung
作者:A. Habich、R. Barner、W. von Philipsborn、H. Schmid
DOI:10.1002/hlca.19650480611
日期:——
The mechanism of the abnormal CLAISEN rearrangement, that is the isomerisation of o-allylphenols, has been investigated using deuterium as tracer. The incorporation and distribution of the label was followed by proton and deuterium NMR. analysis.