Synthesis and Characterization of Some New Esters Containing Heterocyclic and Derived From Azo Dyes

This study including prepared new colored esters containing heterocyclic with high molecular weights. In the first part of work we synthesized azo dyes [1,2] from the reaction p-toluidine with β-naphthol and o-nitro phenol, thin we synthesized Schiff bases [3,4] by the reaction anthranilic acid with benzaldehyde and dimethyl benzaldehyde. The reaction azo dyes (contain OH group) with Schiff base (contain COOH group) these led to produce the new colored esters [A1-A4]. The second part of work was modification the (C=N-) group in esters to heterocyclic compounds by reacting with phenyl iso cyanide to produce new β-lactam [B1-B4] and with anthranilic acid to get new hydroquinazoline [C1-C4]. All these compounds were characterized by physical properties and spectral methods FTIR, 1H-NMR and 13C-NMR.

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Synthesis and characterization of some 1,2,4-triazole-3(4h)-thiones obtained from intramolecular cyclization of new 1-(4-(4-x-phenylsulfonyl)benzoyl)-4-(4-iodophenyl)- thiosemicarbazides

Journal of the Serbian Chemical Society ◽

10.2298/jsc091221122c ◽

2010 ◽

Vol 75 (11) ◽

pp. 1463-1471 ◽

Cited By ~ 18

Author(s):

Olga Cretu ◽

Stefania Barbuceanu ◽

Gabriel Saramet ◽

Constantin Draghici

Keyword(s):

Benzoic Acid ◽

1H Nmr ◽

Intramolecular Cyclization ◽

Elemental Analysis ◽

13C Nmr ◽

Spectral Methods ◽

Heterocyclic Compounds ◽

Synthesis And Characterization ◽

Naoh Solution

This paper presents new heterocyclic compounds from the class of 1,2,4-triazole-3(4H)-thione which were obtained by intramolecular cyclization, in basic media of the some acylthiosemicarbazides containing diphenylsulfone moieties. The new 1-(4-(4-X-phenylsulfonyl)benzoyl)-4- (4-iodophenyl)-thiosemicarbazides (7a-c) were obtained by the reaction of 4-(4-X-phenylsulfonyl)-benzoic acid hydrazides (6a-c) (X=H, Cl or Br) with 4-iodophenylisothiocyanate. The cyclization of the acylthiosemicarbazides 7a-c in the presence of an 8 % NaOH solution resulted in the formation of the new 5-(4-(4-X-phenylsulfonyl)phenyl)-4-(4-iodophenyl)-2H-1,2,4-triazole-3(4H)-thiones (8a-c). The structures of the newly synthesized compounds were elucidated by spectral methods (IR, UV-Vis, 1H-NMR, 13C-NMR and MS spectroscopy) and elemental analysis.

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Synthesis and Characterization of some new Formazan Derivatives from 2-Amino-4-Hydroxy-6-Methyl Pyrimidine and Study the Biological Activity (Anti-Bacteria and Anti-Cancer)

International Journal of Pharmaceutical Quality Assurance ◽

10.25258/ijpqa.11.1.8 ◽

2020 ◽

Vol 11 (01) ◽

pp. 53-59

Author(s):

Shaimaa Adnan ◽

Abdullah Shakir

Keyword(s):

Fourier Transform ◽

Biological Activity ◽

Schiff Base ◽

Infrared Spectroscopy ◽

13C Nmr ◽

Synthesis And Characterization ◽

Compound A ◽

Anti Cancer ◽

Base Derivative

This study involves a synthesis of some formazan derivatives starting from react chloro acetyl chlorid with 2-amino-4-hydroxy-6-methyl pyrimidine to gate compound (a), (a) react with hydrazine hydrate to give compound (b) also (b) react with 3-4-dimethoxy benzaldehyd to product Schiff base derivative (c) then (c) react with deferent amin derivatives to get formazan derivatives. All these compounds characterized by 13C-NMR, fourier transform infrared spectroscopy (FTIR), 1HMNR. After that, we study the biological activity for all formazan derivatives toward two different kinds of bacteria and anti-cancer.

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Synthesis and Characterization of Green Biodegradable Palm Oleic Acid Based Polyester

Biointerface Research in Applied Chemistry ◽

10.33263/briac116.1435914371 ◽

2021 ◽

Vol 11 (6) ◽

pp. 14359-14371

Keyword(s):

Glass Transition ◽

Oleic Acid ◽

Transition Temperature ◽

Glass Transition Temperature ◽

13C Nmr ◽

Ester Group ◽

Synthesis And Characterization ◽

Molecular Weights ◽

Plastic Industry

The palm oleic acid-based polyester was prepared from epoxidized oleic acid (EOA) as a monomer through the polycondensation polymerization at 120 °C with different polymerization times (6, 12, 18, 24, and 30 hr), respectively. The synthesized palm oleic acid-based polyester (POABP) showed about 97% yield. The FTIR spectrum showed the peaks of C=O and C-O of the ester carbonyl group appeared at 1735 cm-1 and 1244 cm-1, respectively. The 1H NMR showed the proton ester group -COO-CH- appeared at 4.7 ppm, while the 13C NMR showed C=O ester appeared at 173.79 ppm, respectively. The polyester molecular weights were between 1963 g/mol to 5501 g/mol and having a glass transition temperature of -19°C. The thermal degradations of the polyester occurred at temperatures higher than 328°C. The synthesized palm oleic acid-based polyester may be used as a precursor in the plastic industry.

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Synthesis and Characterization of Some New Monemer and Polymers Containing Hetero Cyclic Rings With Study of Their Physical Properties.

Baghdad Science Journal ◽

10.21123/bsj.13.2.172-180 ◽

2016 ◽

Vol 13 (2) ◽

pp. 172-180

Author(s):

Baghdad Science Journal

Keyword(s):

Acetic Acid ◽

Schiff Base ◽

Maleic Anhydride ◽

Phthalic Anhydride ◽

Sodium Azide ◽

Heterocyclic Compounds ◽

Synthesis And Characterization ◽

X Ray ◽

Ft Ir

Number of new polyester and polyamide are prepared as derivatives from 5,5`-(1,4-phenylene)-bis-(1,3,4-thiadiazole-2-amine) [C1], three series of heterocyclic compounds were synthesized.The first series includes the Schiff base [C2] prepared from the reaction between compound [C1] with p-hydroxy benzaldehyde in presence of acetic acid and absolute ethanol , then these derivatives have reaction with maleic anhydride , phthalic anhydride and sodium azide, respectively to obtain the compounds [C3-5] contaning (oxazepine and tetrazole) rings.The third series of compounds [C1-5] has transformed to their polymers [C6-15] by reaction with adipoyl chloride and glutroyl chloride , respectively. The reaction was followed by T.L.C and identified by FT-IR , 1H-NMR ,C.H.N analysis , softening point , viscosity, TGA , DSC and X-ray.

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Synthesis and Characterization of Schiff Base Complexes of o-Vanillin and Anthranilic Acid and Their Biological Evaluation

Asian Journal of Chemistry ◽

10.14233/ajchem.2018.21362 ◽

2018 ◽

Vol 30 (9) ◽

pp. 1989-1993 ◽

Cited By ~ 1

Author(s):

Rajeev Pradhan ◽

Sumit Kumar Sinha ◽

Punam Verma ◽

Sunny Kumar ◽

Shivadhar Sharma

Keyword(s):

Schiff Base ◽

Anthranilic Acid ◽

Biological Evaluation ◽

Schiff Base Complexes ◽

Synthesis And Characterization

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Synthesıs and Characterızatıon of New Trıazole and Coumarın-Derived Heterocyclıc Compounds Part I

Journal of the chemical society of pakistan ◽

10.52568/000830/jcsp/41.06.2019 ◽

2019 ◽

Vol 41 (6) ◽

pp. 1097-1097

Author(s):

Nurhan G mr k o lu Nurhan G mr k o lu ◽

Muhammad Imran and Inam Iqbal Muhammad Imran and Inam Iqbal

Keyword(s):

Acetic Acid ◽

Elemental Analysis ◽

13C Nmr ◽

Heterocyclic Compounds ◽

Acid Hydrazide ◽

Triazole Ring ◽

Basic Medium ◽

Synthesis And Characterization ◽

Ethyl Bromoacetate

Synthesis of ethyl ester of acetic acid containing 5-oxo-[1,2,4] triazole ring (2) was achieved by the condensation of 3-substituted-4-amino-1H-1,2,4-triazol-5(4H)-one (1) with ethyl bromoacetate in basic medium. Compound 2, was then further reacted with hydrazine hydrate to form acid hydrazide, which is 2-(4-amino-3-substituted-5-oxo-4,5-dihydro-1H-1,2,4-triazol-1-yl)acetohydrazide (3). Compound 3 was later treated with three different diverse coumarin aldehydes (6, 12, 18) resulted in the formation of arylidene hydrazides as cis–trans conformers (7, 8, 13, 14, 19, 20). In conclusion, we synthesized 1,2,4-triazole Schiff bases derived from the condensation of 3-substituted-4-amino-1,2,4-triazole-5-on and formylhydroxy-4-methylcoumarin derivatives, which have been characterized by, spectroscopic measurements (IR, 1H-NMR, 13C-NMR and elemental analysis).

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