New bis(organotin) materials containing a xylyl bridge

The work embodied in the present thesis is focused on the synthesis of bis (organotin) compounds, in which two tin centers are bridged by the xylyl group, R3Sn-E-SnR3 (R = Ph, E = 1, 4-xylene (1), R = Ph, E = 1, 2-xylene (2) R = Ph, E = 1, 3-xylene (3), R = Ph, Me, E = 1, 4-xylene (4), R = Me, E = 1, 4-xylene (5). The synthetic protocol for this class of compounds involves a salt-elimination reaction between the organic halide and triorganotin lithium (R3Sn +Li-) reagents in appropriate molar ratio using THF as solvent, equation (i).*.;The compounds α,α1-bis (triphenyltin)-p-xylene (1), α,α1-bis (triphenyltin)-o-xylene, (2), α,α1-bis (triphenyltin)-m-xylene (3), α,α1-bis (diphenylmethyltin)-p-xylene (4), α,α1-bis (trimethyltin)-p-xylene (5) have been isolated as white solid materials and are soluble in common organic solvents such as dichloromethane, chloroform and THF, etc. (Abstract shortened by UMI.).;*Please refer to dissertation for diagrams.