scholarly journals Synthesis and Characterization of Some Trivalent and Tetravalent Derivatives of 2- Hydroxy-1-naphthoic Acid

2004 ◽  
Vol 1 (2) ◽  
pp. 110-114 ◽  
Author(s):  
Deepti Joshi ◽  
T. K. Joshi
Keyword(s):  
Spectral Data ◽  
Elemental Analysis ◽  
Molar Ratio ◽  
Synthesis And Characterization ◽  
Spectral Measurements ◽  
Mass Spectral ◽  
Naphthoic Acid ◽  
Derivatives Of

The trivalent derivatives (B, Al, As, Sb & Fe) and tetravalent derivatives (Si, Ti & Se) of 2-hydroxy-1-naphthoic acid have been prepared by the interaction of their corresponding isopropoxide with letter in different molar ratioviz. 1:3 &1:4 in benzene medium. The prepared compounds generally obtained as coloured solids and amongst them those containing isopropoxy groups were found to be hygroscopic. All these compound were characterized by azeotrope and elemental analysis as well as by IR, PMR and mass spectral measurements. These spectral data have facilitated in elucidating the mode of bonding of the said metals and non-metals in these compounds with 2-hydroxy-1-naphthoic acid.

scholarly journals The synthesis and characterization of some new diazoamino derivatives

2010 ◽  
Vol 16 (1) ◽  
pp. 89-95
Author(s):  
Mihaela Mocanu
Keyword(s):  
1H Nmr ◽  
Bioactive Compounds ◽  
Elemental Analysis ◽  
Analysis Data ◽  
Biological Properties ◽  
Synthesis And Characterization ◽  
Elemental Analysis Data ◽  
Spectral Measurements ◽  
Inflammatory Processes

The sulfonamidic moiety is much encountered in structures of bioactive compounds. In the present paper the studies on the sulfonamidated aryloxyalkylcarboxylic acids are extended by their attaching on certain substrata able to confer some special biological properties to the final products, such as anti-tumor and antioxidant actions useful in treating inflammatory processes, ulcer, convulsions and diabetes, as well as a herbicidal action. The stepwise syntheses of the sulfonamidated aryloxyalkylcarboxylic acid derivatives and their characterization by elemental analysis data and IR, 1H-NMR and UV-Vis spectral measurements are described. The newly obtained compounds could show potential pharmaceutical and herbicide properties.

scholarly journals Synthesis and characterization of novel mono, bis and tris heteroaryl chalcone derivatives of 1,3,5-trimethoxybenzene

2021 ◽  
Vol 14 (1) ◽  
pp. 39-47
Author(s):  
M. Fatih Polat ◽  
Derya Aktaş Anı
Keyword(s):  
Elemental Analysis ◽  
High Purity ◽  
Synthesis And Characterization ◽  
Spectroscopic Techniques ◽  
Reaction Conditions ◽  
Chalcone Derivatives ◽  
Ft Ir ◽  
Derivatives Of

In this study, a new series consisting of 12 heteroaryl chalcone derivatives of 1,3,5-trimethoxybenzene were synthesised. Chalcones were synthesised in high purity and efficiency, via condensation of mono, bis and tris 2,4,6-trimethoxy acetophenones with hetero-2-carbaldehyde derivatives based on Claisen Schdmit condensation. The reactions feature a good scope for the all products, mild reaction conditions and good yields. The synthesized compounds were characterized by using FT-IR, NMR and elemental analysis spectroscopic techniques.

scholarly journals Microwave Assisted Synthesis and Characterization of Schiff Base of 2-Amino Benzimidazole

2018 ◽  
Vol 10 (4) ◽  
Author(s):  
Garima Shrivastava ◽  
Manjul Shrivastava
Keyword(s):  
Schiff Base ◽  
Spectral Data ◽  
Aromatic Aldehyde ◽  
Synthesis And Characterization ◽  
Microwave Assisted Synthesis ◽  
Mass Spectral Data ◽  
Mass Spectral ◽  
Microwave Assisted

New Schiff base (2-[(1H-benzimidazol-2-ylimino) methyl]-4,6- diiodophenol) was synthesized by the condensation of aryl/hetero aromatic aldehyde (3,5diiodosalicylaldehyde) with 2- amino benzimidazole under conventional and microwave conditions and characterized through IR, HNMR and Mass spectral data and CHN analysis

Phenolic Analogs of Amino Carboxylic-Acid Ligands for Tc-99m. 1. Synthesis and Characterization of N,N'-Ethylenebis[2-(-O-Hydroxyphenyl)Glycines] (Ehpg)

1987 ◽  
Vol 40 (10) ◽  
pp. 1695 ◽  
Author(s):  
JG Wilson
Keyword(s):  
Carboxylic Acid ◽  
Spectral Data ◽  
Dimethyl Ester ◽  
Synthesis And Characterization ◽  
Mass Spectral Data ◽  
Mass Spectral ◽  
Amino Carboxylic Acid

Nine N,N'- ethylenebis [2-(o- hydroxyphenyl ) glycines ] ( ehpg ) have been prepared and characterized by conversion into their dimethyl ester dihydrochlorides. Their i.r ., 1H n.m.r. and f.a.b. mass spectral data are presented and discussed.

Titanocene derivatives of purine and adenine. Synthesis and characterization of reaction products with (η5-C5H5)2Ti(CO)2, (η5-C5H5)2TiCl, and (η5-C5H5)2TiCl2

1986 ◽  
Vol 64 (4) ◽  
pp. 751-759 ◽  
Author(s):  
Daniel Cozak ◽  
Abdelhakim Mardhy ◽  
André Morneau
Keyword(s):  
Carbon Monoxide ◽  
Metal Complex ◽  
Elemental Analysis ◽  
Synthesis And Characterization ◽  
Reaction Products ◽  
First Order ◽  
H Nmr ◽  
New Compounds ◽  
Derivatives Of

The reaction of CpTi(CO)2 (1), Cp2TiCl (2), and Cp2TiCl2 (3) (Cp = η5-C5H5) with purine (PuH) and adenine (AdH) in organic solvents is described. The compound 1 reacts with both molecules in an oxidative fashion giving Cp2Ti(C5H3N4)(C5H4N4) (4) and (Cp2Ti)2(C5H3N5) (5) with concomitant liberation of molecular carbon monoxide and hydrogen (4:1) following a first order rate law in metal complex. The compound 2 forms an adduct compound Cp2TiCl(C5H4N4) (6) with PuH. Monosubstituted derivatives Cp2TiCl(C5H3N4) (7) and Cp2TiCl(C5H4N5) (8) are formed from the reaction of the deprotonated bases with 3. In addition to the usual elemental analysis, the characteristic ir, 1H nmr, epr, and ms results are given for the new compounds.

The first synthesis and characterization of new metal-free and metallophthalocyanine containing 33-membered crown ether moieties

2013 ◽  
Vol 17 (06n07) ◽  
pp. 473-479 ◽  
Author(s):  
Fatma Akkuş ◽  
Nilgün Kabay ◽  
Yaşar Gök
Keyword(s):  
Crown Ether ◽  
Spectral Data ◽  
Elemental Analysis ◽  
Synthesis And Characterization ◽  
The Novel ◽  
Metal Free ◽  
C Nmr

The synthesis and characterization of novel metal-free and metallophthalocyanines, fused symmetrically in non-peripheral positions with four octaoxamacrocycle has been synthesized by cyclotetramerization of the 2,5,8,11,14,20,23,26,29,32-decaoxatricyclo [31.2.2.115,19]octatriconta-1(36),15,17,19(38),33(37),34-hexaene-34,35-dicarbonitrile (5) which was prepared by the reaction of 3,6-bis[2-(2-{2-[2-(toluene-4-sulphonyl)-ethoxy]-ethoxy}-ethoxy)-ethoxy]-phthalonitrile (3) and 1,3-dihydroxybenzene (4). The novel compounds were characterized by using elemental analysis, 1 H , 13 C NMR, IR, UV-vis and MS spectral data.

Synthesis and characterization of novel metal-free and metallophthalocyanines peripherally fused to four 24-membered tetraoxatetraaza macrocycles

2001 ◽  
Vol 05 (04) ◽  
pp. 367-375 ◽  
Author(s):  
S. ZEKİ YILDIZ ◽  
HALTİ KANTEKİN ◽  
YAŞAR GÖK
Keyword(s):  
Elemental Analysis ◽  
Metal Salt ◽  
Synthesis And Characterization ◽  
Organic Base ◽  
Metal Free ◽  
H Nmr ◽  
New Compounds ◽  
Derivatives Of ◽  
C Nmr

New metal-free 5 and metallophthalocyanines 6-11( M = Cu , Ni , Co , Pb , Zn ) fused in peripheral positions with four 24-membered tetraoxatetraaza macrocycles were prepared by cyclotetramerization of 24,25-dicyano-4,10,13,17-tetra(toluene-p-sulfonyl)-1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22-didicontinehydrobenzo[y][3,9,12,18]tetraaza[1,7,16,22]tetraoxatetradicontine in the presence of the corresponding metal salt or a strong organic base. While the N-tosylated derivatives of the phthalocyanines are soluble in common organic solvents, the detosylated derivative of copper phthalocyaninate is soluble in water. The aggregation properties of the phthalocyanines were also investigated as a function of concentration, solvent and oxidative medium. The new compounds are characterized by a combination of elemental analysis and 1 H NMR, 13 C NMR, IR, UV-vis and MS spectral data.

scholarly journals Synthesis and Characterization of a Thiocyanate Bridged Dinuclear Cu(II) Complex Containing Macrocyclic Ligand Derived from Pyridine-2, 6-dicarboxaldehyde and 1, 2-bis(2-aminoethoxy) Ethane

2012 ◽  
Vol 36 (1) ◽  
pp. 89-96
Author(s):  
Md Mahbubul Alam ◽  
Faisal Ahmed ◽  
Rockshana Begum ◽  
Mizanur Rahman ◽  
Iqbal Ahmed Siddiquey ◽  
...  
Keyword(s):  
Schiff Base ◽  
Spectral Data ◽  
Elemental Analysis ◽  
Macrocyclic Ligand ◽  
Synthesis And Characterization ◽  
X Ray ◽  
Esi Ms ◽  
X Ray Crystallography ◽  
Academy Of Sciences

The cyclic (2+2) template condensation of pyridine-2,6-dicarboxaldehyde with 1,2-Bis(2- aminoethoxy) ethane using Pb(SCN)2 gave dinuclear lead (II) complex, Pb2L1(SCN)4 where L1 is a tetra-Schiff-base macrocycle. The transmetallation treatment of Pb2L1(SCN)4 with Cu(ClO4)2.6H2O yield the complex, [Cu2L1(SCN)3(ClO4)] which has been characterized by elemental analysis, IR, ESI-MS spectroscopy and X-ray crystallography. On the basis of spectral data, different geometry of Cu2+ has been suggested. DOI: http://dx.doi.org/10.3329/jbas.v36i1.10924 Journal of Bangladesh Academy of Sciences, Vol. 36, No. 1, 89-96, 2012

scholarly journals Synthesis and Characterization of New Pyrazolopyrimidine Derivatives Incorporated to Benzothiaazole

2021 ◽  
Vol 10 (3) ◽  
pp. 2429-2437
Keyword(s):  
Hydrazine Hydrate ◽  
Spectral Data ◽  
Methyl Iodide ◽  
1H Nmr ◽  
Elemental Analysis ◽  
Synthesis And Characterization ◽  
Phenyl Isothiocyanate

Reaction of 2-Amino-6-methyl benzothiazole with 1-cyano-acetyl-3,5-dimethylpyrazole afforded cyanoacetamide derivative (2). Compound 2 was used as the precursor for the synthesis of novel aminopyrazole derivative (5) by reaction with phenyl isothiocyanate and methyl iodide followed by addition of hydrazine hydrate. Treatment of aminopyrazole (5) with different reagents gave pyrazolopyrimidine derivatives (7-12). The newly synthesized compounds were characterized by elemental analysis and the use of spectral data (IR, 1H NMR, and MS).

scholarly journals Synthesis and Characterization of 4-substituted-3,4-dihydro-4-(2,4- dioxopentan-3-yl)-3-phenylbenzo[e][1,3] Oxazin-2-ones

2020 ◽  
pp. 34-38
Author(s):  
Laxminarayana Eppakayala ◽  
Ravi Kumar Bommera ◽  
Sailaja Gummadelli ◽  
Thirumala Chary Maringanti
Keyword(s):  
Spectral Data ◽  
Synthesis And Characterization ◽  
Mass Spectral Data ◽  
Mass Spectral

Some substituted benzoxazine derivatives have been synthesized in simple two steps. The structures of the synthesized compounds were confirmed by NMR and Mass spectral data.

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