3139-29-5Relevant academic research and scientific papers
Novel N-Alkylbenzimidazole-Ruthenium (II) complexes: Synthesis and catalytic activity of N-alkylating reaction under solvent-free medium
?ahin, Neslihan,?zdemir, Nam?k,Gürbüz, Nevin,?zdemir, ?smail
, (2019/01/04)
In this article, direct N-alkylation reactions of amines with alcohols derivatives have been investigated. For this purpose, a new series ruthenium (II) complexes bearing N-coordinated benzimidazole complexes with have been synthesized and fully characterized by elemental analysis, FT-IR, 1H NMR and, 13C NMR spectroscopies. Additionally, the structures of the complexes 2b and 2c have been confirmed by X-ray crystallography. Although the N-alkylating reaction is usually performed in toluene, the catalytic study of complexes 2a-d has carried out no additional solvent and alcohol acted both as solvent and reactant of alkylating by using a little excess of alcohols. Surprisingly, conversion and selectivity of amine product for alkylation reaction have been seen high in medium solvent-free relative to in toluene.
A simple method for the synthesis of 1,3-diaminopropan-2-ols derivatives and their ex vivo relaxant activity on isolated rat tracheal rings
López, Fabiola I.,de la Cruz, Fabiola N.,López, Julio,Martínez, J. Merced,Alcaraz, Yolanda,Delgado, Francisco,Sánchez-Recillas, Amanda,Estrada-Soto, Samuel,Vázquez, Miguel A.
, p. 1325 - 1335 (2017/05/04)
Abstract: A mild and eco-friendly method has been developed for the synthesis of a series of 1,3-diaminopropan-2-ols 8a–n. The epoxide of epichlorohydrin undergoes ring-opening with amines using MgSO4 or mixed metal oxides catalysts under mild
Step-Economical Photoassisted Diversity-Oriented Synthesis: Sustaining Cascade Photoreactions in Oxalyl Anilides to Access Complex Polyheterocyclic Molecular Architectures
Kuznetsov, Dmitry M.,Kutateladze, Andrei G.
, p. 16584 - 16590 (2017/11/28)
Atom- and step-economy in photoassisted diversity-oriented synthesis (DOS) is achieved with a versatile oxalyl linker offering rapid access to complex alkaloid mimics in very few experimentally simple steps: (i) it allows for fast tethering of the photoac
Ruthenium-catalyzed reductive amination without an external hydrogen source
Kolesnikov, Pavel N.,Yagafarov, Niyaz Z.,Usanov, Dmitry L.,Maleev, Victor I.,Chusov, Denis
supporting information, p. 173 - 175 (2015/01/30)
A ruthenium-catalyzed reductive amination without an external hydrogen source has been developed using carbon monoxide as the reductant and ruthenium(III) chloride (0.008-2 mol %) as the catalyst. The method was applied to the synthesis of antianxiety agent ladasten.
Solvent- and catalyst-free direct reductive amination of aldehydes and ketones with Hantzsch ester: Synthesis of secondary and tertiary amines
Nguyen, Quynh Pham Bao,Kim, Taek Hyeon
, p. 4938 - 4943 (2013/07/25)
A facile and rapid method for the parallel synthesis of a series of secondary and tertiary amines by the direct reductive amination of aldehydes and ketones with Hantzsch ester under solvent- and catalyst-free has been developed. The scope and limitation of this method are described.
S-Benzyl isothiouronium chloride as a recoverable organocatalyst for the direct reductive amination of aldehydes
Nguyen, Quynh Pham Bao,Kim, Taek Hyeon
supporting information; experimental part, p. 5004 - 5007 (2011/10/07)
The direct reductive amination of aldehydes using S-benzyl isothiouronium chloride as a recoverable organocatalyst for the activation of the imine intermediate through hydrogen bonding is described. A mild and operationally simple fragment coupling procedure was accomplished with a wide range of aldehydes as well as amines in good to excellent yields. In addition, the S-benzyl isothiouronium chloride catalyst was easily recovered by simple filtration and reused without any drop in its efficiency.
An easy and general iron-catalyzed reductive amination of aldehydes and ketones with anilines
Fleischer, Steffen,Zhou, Shaolin,Junge, Kathrin,Beller, Matthias
experimental part, p. 2240 - 2245 (2012/06/18)
A will of iron: An iron-catalyzed reductive amination of aldehydes and ketones with anilines using molecular hydrogen is presented. Under mild conditions, high yields for a broad range of aryl, alkyl, and heterocyclic ketones as well as aldehydes are achieved. Copyright
