scholarly journals ULTRASOUND-ASSISTED SYNTHESIS OF NOVEL 3-(PYRIDINYLAMINO)-1-FERROCENYLPROPAN-1-ONES

2021 ◽  
Vol 11 (2) ◽  
Author(s):  
Aleksandra Minić Jančić ◽  
Danijela Ilić Komatina ◽  
Anka Todosijević ◽  
Dragana Stevanović
Keyword(s):  
Nmr Spectroscopy ◽  
Organic Synthesis ◽  
Ultrasonic Irradiation ◽  
Michael Addition ◽  
Mannich Bases ◽  
Detailed Characterization ◽  
Ir And Nmr Spectroscopy ◽  
Elemental Analyses ◽  
Ultrasound Assisted

In this work we will report the formulation of novel 3-(pyridinylamino)-1-ferrocenylpropan-1-ones. A fruitful aza-Michael addition of pyridinamine moiety to a conjugated enone, 1-ferrocenylpropenone, has been accomplished by an ultrasonic irradiation of the mixture of these reactants. As the catalyst montmorillonite K-10 has been used and the reaction has been carried out as solvent-free, yielding ferrocene containing Mannich bases, compounds considered as important precursors in organic synthesis. The reaction score has been evaluated on three examples. The prepared products have been purified by column chromatography. In addition, a detailed characterization of the obtained 3-(pyridin-2-ylamino)-1-ferrocenylpropan-1-on and 3-(pyridin-3-ylamino)-1-ferrocenylpropan-1-on has been completed by IR and NMR spectroscopy, as well as elemental analyses.

Synthesis, Characterization and Complexation Studies with K + and Ca2+ Cations of trans-1.2-Cyclohexanedioxydiacetamides

1988 ◽  
Vol 43 (2) ◽  
pp. 165-170 ◽  
Author(s):  
Whei Oh Lin ◽  
Maria C. B. V. de Souza ◽  
Helmut G. Alt
Keyword(s):  
Nmr Spectroscopy ◽  
Mass Spectroscopy ◽  
H Nmr ◽  
Coordination Sites ◽  
Complexation Studies ◽  
Ir And Nmr Spectroscopy ◽  
Elemental Analyses ◽  
C Nmr

The synthesis of trans-1.2-cyclohexanedioxydiacetamides starting with trans-1.2-cyclohexane-diol is described. Eleven of these compounds are characterized by IR, 1H NMR, 13C NMR and mass spectroscopy as well as elemental analyses. Most of these compounds are suitable ionophors for the cations K+ and Ca2+. The coordination sites of these ligands in the 1:2 complexes were determined by IR and NMR spectroscopy

Chrom(0)-und Molybdän(0)-Komplexe von 11-Isopropyliden-bicyclo[4.4.1]undeca-2,4,8-trienen / Chromium(0) and Molybdenum(0) Complexes of 11-Isopropylidene-bicyclo[4.4. 1]undeca-2,4,8-trienes

1986 ◽  
Vol 41 (6) ◽  
pp. 722-730 ◽  
Author(s):  
Cornelius G. Kreiter ◽  
Eduard Michels ◽  
Jürgen Kaub
Keyword(s):  
Molecular Structure ◽  
Double Bond ◽  
Nmr Spectroscopy ◽  
Transition Metals ◽  
Crystal And Molecular Structure ◽  
Double Bonds ◽  
Conjugated Diene ◽  
X Ray ◽  
Ir And Nmr Spectroscopy ◽  
Elemental Analyses

11-Isopropylidene-bicyclo[4.4.1]undeca-2,4,8-triene (IBU, 1A) and five alkyl substituted de­rivatives (1B-1F) contain a conjugated diene unit and two isolated CC-double bonds, one exocyclic and one incorporated into the bicvclus, each suited for complexation to transition metals. With [Cr(CO)3(CH3CN)3] (2) 1A-1F form [Cr(CO)3(η6-IBU)] complexes (3A−3F). in which the IBU ligands are coordinated to the chromium via the diene unit and the exocyclic CC-double bond. The corresponding [Mo(CO)3(η6-IBU)] complexes (5A−5F) are obtained from the reactions of [Mo(CO)3(diglyme)] (4) with 1A−1F. In addition, the isomeric [Mo(CO)3(η6-IBU)] complexes (6A−6D) are formed, in which the IBU ligands are bound to molybdenum via the three cyclic CC-double bonds. The complexes 3A−3F, 5A−5F and 6A−6D were studied by IR and NMR spectroscopy (1H. 13C) and characterized by C, H elemental analyses. The crystal and molecular structure of 1A was determined by X-ray structure analysis.

Synthesis and Characterization of the nido-Platinaborane 7,7-(PPh3)2-7-PtB10H11-11-OC(O)Me

2011 ◽  
Vol 66 (4) ◽  
pp. 387-391
Author(s):  
Jinling Miao ◽  
Yong Nie ◽  
Haiyan Chen ◽  
Daqi Wang ◽  
Markus Enders ◽  
...  
Keyword(s):  
Nmr Spectroscopy ◽  
Hydrogen Bonds ◽  
Single Crystal ◽  
Elemental Analysis ◽  
Chain Structure ◽  
Synthesis And Characterization ◽  
X Ray Diffraction ◽  
X Ray ◽  
Ir And Nmr Spectroscopy

The reaction of closo-B10H102− with PtCl2(PPh3)2 in the presence of MeCOSH afforded the title platinaborane nido-7,7-(PPh3)2-7-PtB10H11-11-OC(O)Me (1), which has been characterized by IR and NMR spectroscopy, MS, elemental analysis, and single-crystal X-ray diffraction. In contrast to the known products having exo-polyhedral Pt-S-C-O-B ring(s) from the same reaction with Ph- COSH, compound 1 has a B-acetoxy group on the open PtB4 face of the nido-PtB10 cluster. The structure of 1 features both intramolecular/intermolecular C-H· · ·O hydrogen bonds and intramolecular C-H· · ·H-B dihydrogen bonds, which link the molecules into a 1-D chain structure.

Syntheses and Characterization of 1-Haloazagermatranes

2001 ◽  
Vol 56 (2) ◽  
pp. 137-140 ◽  
Author(s):  
Pavel L. Shutov ◽  
Sergey S. Karlov ◽  
Jörg Lorberth ◽  
Galina S. Zaitseva
Keyword(s):  
Mass Spectrometry ◽  
Nmr Spectroscopy ◽  
Molecular Composition ◽  
High Yield ◽  
Elemental Analyses ◽  
New Compounds ◽  
C Nmr

Abstract Germanium, Azagermatranes The reaction of tris(dimethylamino)halogermanes, (Me2N)3GeHal (7, Hal = Cl; 8 , Hal = Br), with tris(2-aminoethyl)amines, N(CH2CH2NHR)3 (5, R = H; 6 , R = Me), yield l-halo-N,N',N"-azagermatranes (1, X = Cl, R = H; 2, X = Br, R = H; 3, X = Cl, R = Me; 4, X = Br, R = Me). Treatment of 4 with n-butyllithium affords l-n-butyl-N,N',N"-trimethylazagermatrane (14) in high yield. Reactions of n-BuLi with 7 or (Me2N)4Ge (13) lead to the formation of (Me2N)3Ge-n-Bu (15). On treatment of 15 with 5 the 1 -n-butylazagermatrane 16 was obtained. The molecular composition and the structures of all new compounds were established by elemental analyses, 1H and 13C NMR spectroscopy and mass spectrometry.

Recent Developments on Ultrasound-Assisted Synthesis of Bioactive N-Heterocycles at Ambient Temperature

2017 ◽  
Vol 70 (8) ◽  
pp. 872 ◽  
Author(s):  
Bubun Banerjee
Keyword(s):  
Ambient Temperature ◽  
Organic Synthesis ◽  
Ultrasonic Irradiation ◽  
Room Temperature ◽  
Biological Activities ◽  
Reaction Conditions ◽  
Biologically Relevant ◽  
Naturally Occurring ◽  
Recent Developments ◽  
Ultrasound Assisted

N-Heterocycles represent privileged structural subunits well distributed in naturally occurring compounds with immense biological activities. The last decade has seen a tremendous practice to carry out reactions at ambient temperature avoiding harsh reaction conditions. By applying ultrasonic radiation in organic synthesis we can make synthetic protocols more sustainable and can carry out reactions at room temperature avoiding the traditional thermal harsh reaction conditions. Therefore the synthesis of biologically relevant N-heterocycles at room temperature under the influence of ultrasonic irradiation is one of the advancing areas in the 21st century among organic chemists. The present review summarises the latest developments on ultrasound-assisted synthesis of biologically relevant N-heterocycles at ambient temperature.

scholarly journals Synthesis and characterization of palladium(II) complexes with glycine coumarin derivatives

2016 ◽  
Vol 81 (12) ◽  
pp. 1383-1392
Author(s):  
Danijela Stojkovic ◽  
Alessia Bacchi ◽  
Davide Capucci ◽  
Milica Milenkovic ◽  
Bozidar Cobeljic ◽  
...  
Keyword(s):  
Nmr Spectroscopy ◽  
Elemental Analysis ◽  
Water Solution ◽  
13C Nmr Spectroscopy ◽  
Synthesis And Characterization ◽  
Coumarin Derivatives ◽  
1H And 13C Nmr ◽  
X Ray ◽  
Ir And Nmr Spectroscopy

A Pd(II) complex with methyl 2-((1-(2,4-dioxochroman-3-ylidene)ethyl)amino)acetate was synthesized. The structures of both the ligand and Pd(II) complex were determined by elemental analysis, IR and NMR spectroscopy. Recrystallization of Pd(II) complex from DMF/water solution resulted in its hydrolysis and formation of dimethylamine-(2-((1-(2,4-dioxochroman-3-ylidene)ethyl)amino)acetato)palladium(II) complex, the structure of which was determined by elemental analysis, IR, 1H and 13C NMR spectroscopy, as well as X-ray analysis.

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