efficient and practical protocol for the synthesis of (E)-allylethers from readily available olefins with alcohols or phenols was developed. This aerobic oxidative allylic C–H oxygenation protocol features mild conditions, broad substrate scope, and high atom and step economy, making it a valuable and convenientsynthetic method. Notably, molecular oxygen is the sole oxidant in this novel transformation.
(RuCp*Cl-2)(2), a general entry into Cp*Ru sandwich and half-sandwich chemistry was first used as a precatalyst in allylic etherification of cinnamyl chlorides with up to 98:2 regioselectivity (19 examples). Both the solvent effect and the exsiccant reaction condition are crucial to the reactivity and selectivity. Preliminary mechanism studies and the demonstration of Fluoxetine synthesis were presented in this work as well. (C) 2013 Elsevier Ltd. All rights reserved.
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.