24619-05-4Relevant articles and documents
Ethanol catalyzed synthesis of titanocene aryl carboxylate complexes and crystal structure of (η5-C5H5) 2Ti(2-OH-5-S-O2CC6H3)2
Li, Jin-Ling,Gao, Zi-Wei,Sun, Ping,Gao, Ling-Xiang,Tikkanen, Wayne
, p. 231 - 236 (2011)
A method for the synthesis of titanocene (IV) aryl carboxylate complexes is presented in this paper. It is based on the fact that alcohol can catalyze the reaction between Cp2TiCl2 and aryl carboxylate ligands in the presence of sodium hydroxide (NaOH). The effects of the catalyst on the reaction system were studied and the possible reaction mechanism was proposed. This method was used to prepare a series of titanocene (IV) aryl carboxylate complexes and a macrocyclic titanocene (5,5′-dithiodisalicylato titanocene), whose structure was determined by X-ray diffraction analysis.
Bacterial reduction as means for colonic drug delivery: Can other chemical groups provide an alternative to the azo bond?
Saphier, Sigal,Haft, Avital,Margel, Shlomo
supporting information, p. 10781 - 10785 (2013/02/23)
We compared the rate of colonic bacterial reduction of disulfide and nitro bonds to that of an azo counterpart. The disulfide and nitro reduction rates are comparable to that of azo having a similar molecular structure. We further explored QSAR of bacterial reduction of different nitro compounds giving a Hammett correlation with ρ = 0.553, R2 = 0.97. We conclude that disulfide and nitro compounds have an unexploited potential for use in prodrugs and drug delivery systems targeted to the colon.