10.1016/S0022-328X(00)87835-3
The study investigates the synthesis and reactions of several novel methyl(allyl)thallium compounds. The researchers prepared these derivatives for the first time and analyzed their infrared (IR) and proton magnetic resonance (PMR) spectra, which indicated the presence of o-allyl-thallium bonds. The compounds involved include methyl(allyl)thallium carboxylates, dithiocarbamates, tropolonates, and propionates. These compounds were synthesized through reactions of monomethylthallium compounds with tri-n-butyI(allyl)tin. The study also examined the cleavage reactions of these compounds with various reagents such as tetramethyltin, metal salts like Hg(OCOCH3)2, PdX2 (where X = OCOC2H5 and Cl), and RhCl3·3H2O. The results showed preferential cleavage of the allyl-thallium bond, yielding propylene in the case of tetramethyltin and allylic derivatives of the metals in other cases. This preferential cleavage suggests a specific interaction between the π-electron system of the allyl group and electrophilic reagents.