38632-84-7Relevant academic research and scientific papers
Photoinduced electron transfer reactions of benzyl phenyl sulfides promoted by 9,10-dicyanoanthracene
Baciocchi, Enrico,Crescenzi, Cristina,Lanzalunga, Osvaldo
, p. 4469 - 4478 (2007/10/03)
The photoinduced oxidation of benzyl phenyl sulfides 1-3 has been investigated in MeCN using 9,10-dicyanoanthracene as sensitizer in the presence of O2. In this reaction a sulfide radical cation is formed, which undergoes one or more of the three main reaction pathways opened to these species: C-S bond cleavage, C-H bond cleavage and S-oxidation. The former route (leading to benzylic products) was observed with all the substrates investigated, whereas the second (leading to benzaldehydes) operates only with 1 and 2. Formation of sulfoxides was found solely in the photooxidation of 1. The influence of substrate structures on the relative contribution of the three pathways as well as the role of O2- in this respect are discussed.
Kinetics of the Reaction of Benzenesulfonyl Chloride with Substituted Benzoate Ions in Methanol
Banjoko, O.,Okwuiwe, R.
, p. 4966 - 4968 (2007/10/02)
The rate constants and activation parameters for the reaction of benzenesulfonyl chloride with substituted benzoate ions have been measured in methanol.The reaction is second order overall and first order with respect to each reactant.The rate constants are greater with electron-donating substituents while they are lower with electron-withdrawing groups.The substituent effects are correlated by Hammett (ρ -0.35) and Broensted (β 0.35) equations, respectively, and the results compared with the corresponding data for the reaction of benzenesulfonyl chloride with substituted anilines and related reactions.The kinetic results are interpreted in terms of a synchronous direct bimolecular nucleophilic displacement mechanism.
