76218-93-4Relevant academic research and scientific papers
Proximity effect on the general base catalysed hydrolysis of amide linkage: The role of cationic surfactant, CTABr
Dash, Sarat C.,Dash, Anadi C.
, p. 497 - 507 (2011)
The bis phenoxide forms of (1,2) bis(2-hydroxybenzamido) ethane(I) , (1,5) bis(2-hydroxybenzamido) 3-azapentane(II) , (1,3) bis(2-hydroxybenzamido) propane(III) , and (1,8) bis(2-hydroxybenzamido) 3,6- diazaoctane(IV) undergo facile hydrolysis of one of the amide groups (0.02 ≤ [OH?]T (mol dm? 3) ≤ 0.5, 10% MeOH (v/v) + H2O medium) without exhibiting [OH?] dependence. The reactivity trend follows I ～ II >> III ～ IV with low activation enthalpy {25.7±2.8 ≤ δH≠ (kJ mol?1) ≤ 64.8±7.0}. The high negative and comparable values of activation entropy{?234 ±8 ≤ δS≠ (J K?1 mol? 1) ≤ ?127 ± 20} are consistent with closely similar, and ordered transition states which can be assembled by favourably oriented phenoxide groups. The solvent kinetic isotope effect for I, κ H2O/κ D2O+H2O ～ 1 (20 and 50 volume% D2O) , indicates that proton transfer is not involved as a part of the rate controlling process. The observed slowing down of the rate of this reaction for I in the micellar pseudo phase of CTABr also supports the proposed mechanism. Under premicellar conditions, however, rate acceleration is observed, a consequence believed to be associated with the capping effect of the hydrophobic tail of the surfactant cation forming the reactive ion-pair, CTA+, (I-2H) 2? exclusively in the aqueous pseudo phase. Indian Academy of Sciences.
A zwitterion of 1,5-bis(2-hydroxybenzamido)-3-azapentane: A two-dimensional hydrogen-bonding network involving dimers
Liu, Hui-Min,He, Lei,Luo, Xiao-Lan,Zhang, Wen-Qin
, p. o104-o106 (2006)
The title compound, 2-{N-[2-(2-hydroxybenzamido)ethylammonioethyl] aminocarbonyl}phenolate, C18H21N3O4, crystallizes in a zwitterionic form as a result of intermolecular proton transfer and possesses a negativel
Studies on some diamide copper (II) complexes
Sureshan,Bhattacharya
, p. 723 - 726 (2007/10/03)
Two diamides 1,5-bis (2-hydroxybenzamido)-4-azo-pentane (H2L) and 1,7- bis(2-hydroxybenzamido)-4-azo-heptane (H2L), which can act both as mononucleating and binucleating ligands, have been synthesised. Mononuclear LCu.H2O
