Dendrimeric organochalcogen catalysts for the activation of hydrogen peroxide: improved catalytic activity through statistical effects and cooperativity in successive …
C Francavilla, MD Drake, FV Bright…
文献索引：Francavilla; Drake; Bright; Detty Journal of the American Chemical Society, 2001 , vol. 123, # 1 p. 57 - 67
Dendrimeric polyphenylsulfides,-selenides, and-tellurides are prepared in high yield using propyloxy spacers to connect the phenylchalcogeno groups to the dendrimeric core. The selenides and tellurides catalyze the oxidation of bromide with hydrogen peroxide to give positive bromine species that can be captured by cyclohexene in two-phase systems. The corresponding sulfides show no catalytic activity. The increase in the rate of catalysis ...
