نتایج جستجو برای: diamines

تعداد نتایج: 2106  

Journal: :The Journal of Physiology 1907

Journal: :The Journal of biological chemistry 1989
S N Gacheru P C Trackman S D Calaman F T Greenaway H M Kagan

The observation that aliphatic diamines become poor substrates as the carbon chain length decreases and that ethylenediamine, the shortest diamine, is an irreversible inhibitor of lysyl oxidase led to the investigation of the mechanism of inhibition by ethylenediamine. The cis but not the trans isomer of 1,2-diaminocyclohexane was also a potent irreversible inhibitor of lysyl oxidase, consisten...

Journal: :Organic & biomolecular chemistry 2015
Chaoyuan Zeng Fan Yang Jingchao Chen Jun Wang Baomin Fan

A combination of iridium/copper associated with (R)-Difluorphos catalyst for the asymmetric ring opening reaction of azabenzonorbornadienes with amines was developed, which afforded chiral trans-vicinal diamines in 80-97% yields with 93-95% enantioselectivities.

Journal: :Chemical communications 2009
Philipp Rubenbauer Thorsten Bach

An acid-catalysed Ritter reaction of chiral secondary benzylic alcohols enables diastereoselective access to chiral amides, which represent inter alia valuable intermediates for the synthesis of chiral 1,2-diamines and beta-amino acids.

Journal: :Chemical communications 2015
Stéphanie Norsikian Margaux Beretta Alexandre Cannillo Amélie Martin Pascal Retailleau Jean-Marie Beau

The three-component Petasis borono-Mannich reaction starting with easily accessible N-protected α-amino aldehydes produces efficiently and diastereoselectively 1,2-trans-diamines with an enantiomeric excess of up to 98%.

Journal: :Molecules 2006
Zhang-Gao Le Zong-Bo Xie Min Ying

The reaction of 1,4-Dihydroxyanthraquinone with diamines was carried out in the presence of CuCl(2), CuCl in the ionic liquid [Bmim]PF(6), [Bmim]BF(4) or [Bmim]Cl x CuCl.

Journal: :Organic & biomolecular chemistry 2009
Enrique Sotoca Christophe Allais Thierry Constantieux Jean Rodriguez

A multicomponent reaction of 1,3-dicarbonyls with 1,2-diamines and aromatic aldehydes is described for the direct stereoselective synthesis of 1,4-diazepane derivatives. Various reaction conditions were tested, including an efficient, user-friendly solvent- and catalyst-free procedure.

Journal: :iranian chemical communication 2014
esmael rostami maryam bagherzadeh akram khodadadi ay soda ghobadpoor fatemeh dehghani

in this research work, we report the synthesis of macrocyclic diamides from the reaction of diesters and aliphatic diamines in the presence of caesium carbonate. it has been demonstrated that among the carbonate of alkali metals (li2co3, na2co3, k2co3 and cs2co3), cs2co3 appear to be the best catalyst for macrocyclization. diesters with different substitution patterns on the aromatic ring react...

Bahareh Sadeghi, Fereshteh Karimi

1,2-Diketones have been reacted in one-pot method with 1,2-diamines at room temperature with ZnO nanoparticles as a catalyst. ZnO nanoparticles as an available and reusable catalyst is used for the synthesis of Quinoxalinein improved yields.

Journal: :Chemical Communications 2021

Radical translocation facilitates the regioselective ?-amination of 2-alkyl-substituted azacycles, leading to 1,3-diamines including alkaloidal natural product tetraponerine T8.

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