33545-23-2Relevant articles and documents
Imidazole-catalyzed monoacylation of symmetrical diamines
Verma, Sanjeev K.,Acharya,Kaushik
body text, p. 4232 - 4235 (2010/11/04)
Figure Presented. An imidazole-catalyzed protocol for monoacylation of symmetrical diamines has been developed. The protocol gave selective monoacylation of aliphatic (cyclic and acyclic) primary and secondary diamines. In the reaction, imidazole acts as both catalyst and a leaving group. Different monoacylated piperazines and other diamines were synthesized at room temperature in an ethanol/water solvent system.
N-heterocyclic carbene-catalyzed amidation of unactivated esters with amino alcohols
Movassaghi, Mohammad,Schmidt, Michael A.
, p. 2453 - 2456 (2007/10/03)
(Chemical Equation Presented) A catalytic amidation of unactivated esters with amino alcohols is described. A series of solution studies in addition to the first X-ray structure of a carbene-alcohol complex support a carbene-base nucleophile activation mechanism.
Al2O3/MeSO3H (AMA) as a new reagent with high selective ability for monoesterification of diols
Sharghi, Hashem,Sarvari, Mona Hosseini
, p. 3627 - 3633 (2007/10/03)
A new facile method for monoesterification of diols has been developed. A variety of diols, in particular oligoethylene glycols, were selectively monoesterified in excellent yields by reaction with aromatic and aliphatic acids in the presence of Al2O3/MeSO3H as a new reagent without use of any solvents.
Highly selective methodology for the direct conversion of aromatic aldehydes to glycol monoesters
Sharghi, Hashem,Sarvari, Mona Hosseini
, p. 4096 - 4099 (2007/10/03)
Al2O3/MeSO3H (AMA) was found to be an extremely efficient reagent for the conversion of aromatic aldehydes and diols to glycol monoesters. The remarkable selectivity achieved with this reagent is an attractive feature of t