Simple methods of preparing substituted deuteriobenzenes and α-deuteriotoluenes of high isotopic purity
作者:W. A. Asomaning、C. Eaborn、D. R. M. Walton
DOI:10.1039/p19730000137
日期:——
= H, o-, m-, or p-Me, m- or p-Cl, m- or p-OMe, m-CF3, p-F, or p-Br), of better than 98% isotopic purity have been prepared by treatment of the appropriate aryltrimethylstannane, XC6H4·SnMe3, with O-deuterioacetic acid containing 10%(w/w) of deuterium oxide at 75°. The benzyl compound m-CF3·C6H4·-CH2D has been correspondingly prepared by treatment of the compound m-CF3·C6H4·CH2·SiMe3 with sodium deuterioxide
Sulfur dioxide insertion into benzyltrimethylstannanes: kinetics and mechanism
作者:Christopher J. Moore、William Kitching
DOI:10.1016/s0022-328x(00)95038-1
日期:1973.10
series of meta- and para-substituted benzyltrimethylstannanes have been prepared and their reactions with sulfur dioxide in methanol solvent at 30° have been studied kinetically by an 1H NMR method. Insertion occurs exclusively into the benzyl—tin bond, irrespective of substituent (m- and p-CH3, m- and p-CF3, m- and p-Cl, m- and p-OCH3), and the reaction exhibits good second-order kinetics for at least