نتایج جستجو برای: pot reaction

تعداد نتایج: 423614  

Journal: :Chemical communications 2009
Shifang Liu Martin Rebros Gillian Stephens Andrew C Marr

Waste glycerol was converted to secondary amines in a one pot reaction, using Clostridium butyricum and catalytic hydrogen transfer-mediated amination.

Journal: :Organic & biomolecular chemistry 2017
Harekrushna Behera Venkatachalam Ramkumar Nandita Madhavan

Correction for 'Triamide macrocyclic chloride receptors via a one-pot tandem reduction-condensation-cyclization reaction' by Harekrushna Behera, et al., Org. Biomol. Chem., 2017, DOI: .

Journal: :iranian journal of catalysis 2014
sobhan rezayati rahimeh hajinasiri zahra erfani saman rezayati saeid afshari-sharifabad

an efficient and simple procedure for the synthesis of 1,8-dioxo-octahydroxanthenes from the aromatic aldehydes and 5,5-dimethylcyclohexane-1,3-dione (dimedone) in the presence of boric acid [bo3h3 or b(oh)3] as an inexpensive and reusable catalyst is described. the salient features of this methodology are: the elimination of corrosive liquid acids, high yields, simple methodology, short reacti...

Journal: :journal of nanostructures 2012
a. bamoniri s. rohani

a general synthetic route to the synthesis of imidazoles has been developed using nano sbcl5/sio2 under solvent-free conditions. the multi-component reactions of aldehydes, benzil and ammonium acetate were carried out to afford some trisubstituted imidazole derivatives. this method provides several advantages like simple work-up, environmentally benign, and shorter reaction times along with hig...

Journal: :Molecules 2009
Chen-Jiang Liu Ji-De Wang

A simple, efficient procedure for the one-pot Biginelli condensation reaction of aldehydes, beta-ketoesters and urea or thiourea employing copper(II) sulfamate as a novel catalyst is described. Compared to the classical Biginelli reaction conditions, the present method has the advantages of good yields, short reaction times and experimental simplicity.

Journal: :Molecules 2013
Kankan Zhang Xueping Liang Ming He Jian Wu Yuping Zhang Wei Xue Linhong Jin Song Yang Deyu Hu

An efficient one-pot synthesis of novel β-amino acid derivatives containing a thiadiazole moiety was developed using a chiral squaramide cinchona alkaloid as organocatalyst. The reactions afforded chiral β-amino acid derivatives in moderate yields and with moderate to excellent enantioselectivities. The present study demonstrated for the first time the use of a Mannich reaction catalyzed by a ch...

Journal: :Organic & biomolecular chemistry 2009
Abdellatif Tikad Sylvain Routier Mohamed Akssira Gérald Guillaumet

An efficient and original synthesis of various 2,4-disubstituted pyrido[3,2-d]pyrimidines is reported. One-pot di(het)arylation and diamination approaches were used to obtain highly functionalized products in very good yields. The two one-pot processes were compared to their step-by-step related synthesis. Both routes started from 2,4-dichloropyrido[3,2-d]pyrimidine and included a chlorine disc...

Journal: :Molecules 2008
Fawzia Al-Qalaf Ramadan Ahmed Mekheimer Kamal Usef Sadek

A one-pot synthesis of 2-arylbenzothiazoles from the reaction of 2-aminothiophenol and aromatic aldehydes catalysed by cerium (IV) ammonium nitrate (CAN) is reported.

Journal: :Molecules 2007
Hossien A Oskooie Majid M Heravi Farahnaz K Behbahani

2-Phenylindoles were prepared by heteroannulation of 2-haloaniline derivatives and phenylacetylene under mild conditions in a one-pot reaction catalyzed by Pd(PPh3)2Cl2.

Journal: :Chemical communications 2009
Khalid Azyat Eike Jahnke Trent Rankin Rik R Tykwinski

Using a one-pot protocol, triynes and tetraynes are formed from the reaction of a dibromovinyl triflate and a terminal alkyne under palladium-catalyzed cross-coupling conditions.

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