For studies, there have been used nanopowders: sample 1, iron oxide [Fe.sub.3][O.sub.4] (average particle diameter 25 nm); sample 2, iron in a carbon shell (average particle diameter 5-10 nm) obtained by gas-phase synthesis at the Institute of Metal Physics, Ural Branch of the Russian Academy of Sciences (Yekaterinburg); and sample 3, iron coated with a layer of carbon and salts of arendiazonium tosylates
obtained by a team of employees of the Department of Biotechnology and the Engineering School of New Production Technologies .
(2012) Copper-catalyzed cross-coupling of nonactivated secondary alkyl halides and tosylates
with secondary alkyl Grignard reagents.
Netherton's work at MIT included developing methods for the cross-coupling of alkylboranes with alkyl halides and tosylates
, and the use of phosphonium salts as air-stable replacements for trialkylphosphine ligands in metal-catalyzed reactions.
Tosylates are good substrates for substitution reactions.
In this study, we aimed to understand the effect of tosylate on some thermodynamic parameters and surface properties of PEG.
This indicates that the tosyl was connected to the PEG end generating the PEG tosylate.
228a,b are more reactive as compared to mesylate 228c.
By refluxing an anhydrous acetonitrile solution of catechin tosylate
10 or catechin mesylate 12 in the presence of DBU exclusively afforded 13 in good yields of 82% and 99%, respectively (Scheme 3).
Mesylate and tosylate of ethyl lactate were the lactic acid derivatives used for the reaction.
Friedel-Crafts alkylation of mesylate or tosylate with isobutylbenzene for single step synthesis of ethyl-2-(4-isobutylphenyl) propanoate was carried out by heating with Silica-Supported Preyssler Nanoparticles ([H.sub.14][Na[P.sub.5][W.sub.30][O.sub.110]]/Si[O.sub.2]) (SPNPs) under neat reaction conditions.