220950-35-6Relevant articles and documents
Selectivity in the photo-Fenton and photocatalytic hydroxylation of biphenyl-4-carboxylic acid and derivatives (viz. 4-phenylsalicylic acid and 5-phenylsalicylic acid)
Hathway, Timothy,Chernyshov, Deborah Lipman,Jenks, William S.
supporting information, p. 1151 - 1156 (2013/01/09)
The selectivity of hydroxylation of the distal rings of 4-phenylbenzoic acid, 4-phenylsalicylic acid, and 5-phenylsalicylic acid were determined using partial TiO2-mediated photocatalytic degradation and photo-Fenton conditions. This separation of the binding site from the phenyl group being hydroxylated allows a less-biased evaluation. The hydroxylation regiochemistry behaves as qualitatively expected for an electrophilic reaction, given the assumption that 4-carboxyphenyl is a slightly electron-withdrawing substituent. Selectivity for hydroxylation of the distal phenyl in 4- and 5-phenylsalicylic acid is reversed, due to the reversal of the electronic demand, while adsorption to the TiO2 surface is assumed to be analogous for the two structures. Copyright
Amidocarboxylic acid derivatives
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, (2008/06/13)
Amidocarboxylic acid derivatives of the formula: wherein R1 represents a hydrogen atom, etc.; R2 represents an alkylene group; R3 represents a hydrogen atom, etc.; R4 represents a hydrogen atom, etc.; X represents a substituted or unsubstituted aryl group, etc.,; Y represents an oxygen atom, etc.; Z represents an alkylene group, etc.; and W represents an alkyl group, etc.; and pharmacologically acceptable salts thereof and pharmacologically acceptable esters thereof are useful as the active ingredient of pharmaceutical compositions. They may be used to treat specified diseases, including diabetes mellitus, hyperlipemia, arteriosclerosis, hypertension, etc.