90-59-5 Archives - Page 11 of 13 - Bromides-buliding-blocks

Deswal, Yogesh team published research on Research on Chemical Intermediates in 2022 | 90-59-5

Safety of 3,5-Dibromo-2-hydroxybenzaldehyde, 3,5-Dibromosalicylaldehyde reacts with alkyl cyanoacetates in the presence of ammonium acetate to yield 4H- chromenes.

3,5-Dibromosalicylaldehyde, also known as 3,5-Dibromosalicylaldehyde, is a useful research compound. Its molecular formula is C7H4Br2O2 and its molecular weight is 279.91 g/mol. The purity is usually 95%.

3,5-Dibromosalicylaldehyde reacts with alkyl cyanoacetates in the presence of ammonium acetate to yield 4H- chromenes. 3,5-Dibromosalicylaldehyde can be used in the synthesis of Schiff base and can be used as reactant for synthesis of Schiff base ligands which forms mononuclear complexes with copper(II), nickel(II), zinc(II) and cobalt(II).

3,5-Dibromosalicylaldehyde is a copper complex that has been synthesized from 3,5-dibromosalicylaldehyde and copper chloride. FTIR spectroscopy revealed that the coordination geometry of the copper complex is octahedral with two nitrogen atoms in the equatorial plane. The presence of hydrogen bonding interactions was confirmed by homologous protein adsorption experiments. This chemical structure was determined using X-ray crystallography and fluorescence probe experiments. The copper complex showed high affinity for malonic acid, which is an ester hydrochloride. The molecular mechanism of this interaction is based on adsorption, which occurs through hydrogen bonding interactions and hydrophobic interactions. Structural analysis revealed that the polymeric matrix consists of a three-dimensional network of crosslinked chains, while FTIR analysis indicated a possible disulfide bond between two cysteine residues., 90-59-5.

Vinyl bromides undergo the Heck reaction, which involves C-C coupling with alkene to give substituted alkenes. 90-59-5, formula is C7H4Br2O2, Name is 3,5-Dibromo-2-hydroxybenzaldehyde. Methyl bromide is a precursor in the manufacture of several chemicals and is employed as a soil sterilant, mainly for seed production. Safety of 3,5-Dibromo-2-hydroxybenzaldehyde.

Deswal, Yogesh;Asija, Sonika;Kumar, Deepak;Jindal, Deepak Kumar;Chandan, Gourav;Panwar, Vivek;Saroya, Sonia;Kumar, Naresh research published 《 Transition metal complexes of triazole-based bioactive ligands: synthesis, spectral characterization, antimicrobial, anticancer and molecular docking studies》, the research content is summarized as follows. Abstract: In the present research work, four new heterocyclic Schiff base ligands (1–4) were synthesized by the condensation of 4-(4-amino-5-mercapto-4H-1,2,4-triazol-3-yl)phenol with salicylaldehyde derivatives in 1:1 molar ratio. The synthesized Schiff base ligands were allowed for complexation with Co(II), Ni(II), Cu(II), Zn(II) metal ions. The structure of the newly synthesized compounds (1–20) was elucidated with the help of various spectral and physicochem. techniques. Spectroscopic data confirm the tridentate nature of ligands which coordinate to the metal via deprotonated oxygen, azomethine nitrogen and thiol sulfur. Conductivity data showed the non-electrolytic nature of complexes. Furthermore, the synthesized compounds were evaluated for their in-vitro antimicrobial activity against four pathogenic bacterial strains and two pathogenic fungal strains. The observed results of microbial activity reveals that compound 3 and its complexes (13–16) were found most potent against the pathogenic strains. In addition, the anticancer activity of all the synthesized compounds was evaluated against human carcinoma cell lines i.e. HCT-116, DU145 and A549 using MTT assay. Among the tested compounds 12, 19, and 20 show promising potency against the cancer cell lines. To rationalize the preferred modes of interaction of most potent compounds with the active site of human EGFR protein (PDB id: 5XGM), mol. docking studies were performed.

Safety of 3,5-Dibromo-2-hydroxybenzaldehyde, 3,5-Dibromosalicylaldehyde reacts with alkyl cyanoacetates in the presence of ammonium acetate to yield 4H- chromenes.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Devi, Jai team published research on Applied Organometallic Chemistry in 2022 | 90-59-5

Application of C7H4Br2O2, 3,5-Dibromosalicylaldehyde reacts with alkyl cyanoacetates in the presence of ammonium acetate to yield 4H- chromenes.

Organic compounds having carbon bonded to bromine are called organic bromides. 90-59-5, formula is C7H4Br2O2, Name is 3,5-Dibromo-2-hydroxybenzaldehyde. Depending on the type of carbon to which the bromine is bonded, organic bromide could be alkyl, alkenyl, alkynyl, or aryl. Application of C7H4Br2O2.

Devi, Jai;Sharma, Som;Kumar, Sanjeev;Kumar, Binesh;Kumar, Deepak;Jindal, Deepak Kumar;Das, Souvik research published 《 Synthesis, characterization, in vitro antimicrobial and cytotoxic studies of Co(II), Ni(II), Cu(II), and Zn(II) complexes obtained from Schiff base ligands of 1, 2, 3, 4-tetrahydro-naphthalen-1-ylamine》, the research content is summarized as follows. The transition metal complexes of Co(II), Ni(II), Cu(II) and Zn(II) with bidentate Schiff base ligands (HL^1-5) were obtained from condensation of 1,2,3,4-tetrahydro-naphthalen-1-ylamine with methanolic solution of 3-hydroxy-salicylaldehyde, 4-hydroxy-salicylaldehyde, 5-bromo-salicylaldehyde, 3,5-dibromo-salicylaldehyde, and 2-hydroxy-1-naphthaldehyde. The synthesized compounds were structurally elucidated by spectral and phys. methods. The spectral characterization emphasized bidentate nature (NO) of Schiff base ligands which gets chelated with metal via nitrogen atom of imine group and deprotonated oxygen of salicylaldehyde/2-hydroxy-1-naphthaldehyde group to form octahedral geometry around metal atom. Thermal results supported that the complexes are stable up to 200° leaving metal oxide as an end products. The reported compounds (1–25) in this series were screened against the bacterial strains, i.e., two Gram pos.: Bacillus subtilis and Staphylococcus aureus, two Gram neg.: Pseudomonas aeruginosa and Escherichia coli, and two fungal strains: Candida albicans and Aspergillus niger and their results that indicated moderate to good activity with compounds 20 and 21 having good antimicrobial activity (min. inhibitory concentration [MIC] value 0.0269-0.0067μmol/mL) as compared with control drugs ciprofloxacine and fluconazole. Furthermore, cytotoxic studies of synthesized compounds were carried out against three human cancer cell lines: HCT-<116≥ (colon), A549 (alveolar), and MCF-7 (breast) using standard drug paclitaxel. Compounds 1 (IC₅₀ values = 12.93, 15.13, 17.24), 3 (11.9, 9.29, 12.64), 9 (17.06, 20.06, 22.87), 14 (16.21, 18.47, 20.00), and 25 (17.54, 17.21, 20.23) for three cancer cell lines are most potent candidates among the synthesized compounds

Application of C7H4Br2O2, 3,5-Dibromosalicylaldehyde reacts with alkyl cyanoacetates in the presence of ammonium acetate to yield 4H- chromenes.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Devi, Jai team published research on Journal of Molecular Structure in 2021 | 90-59-5

Formula: C7H4Br2O2, 3,5-Dibromosalicylaldehyde reacts with alkyl cyanoacetates in the presence of ammonium acetate to yield 4H- chromenes.

A variety of minor organobromine compounds are found in nature, but none are biosynthesized or required by mammals. 90-59-5, formula is C7H4Br2O2, Name is 3,5-Dibromo-2-hydroxybenzaldehyde. Organobromine compounds have fallen under increased scrutiny for their environmental impact., Formula: C7H4Br2O2.

Devi, Jai;Yadav, Jyoti;Lal, Kashmiri;Kumar, Nikhil;Paul, Avijit Kumar;Kumar, Deepak;Dutta, Partha P.;Jindal, Deepak Kumar research published 《 Design, synthesis, crystal structure, molecular docking studies of some diorganotin(IV) complexes derived from the piperonylic hydrazide Schiff base ligands as cytotoxic agents》, the research content is summarized as follows. Inspired by the role of organotin(IV) complexes in inhibition of cancer cell growth and interaction with different target proteins, the authors synthesized new organotin(IV) complexes of Schiff base ligands of benzylidene benzohydrazide analogs. The structural elucidation of compounds was done by spectroscopic studies showing tridentate nature (NOO) of Schiff base ligands having pentacoordinated geometry around the central Sn metal. The x-ray crystallog. study of complex 9 (Me₂SnL²) revealed the distorted trigonal bipyramidal geometry (SnO₂NC₂). The cytotoxic activity of compounds was tested against human cancer cell lines A549, Hela, MCF7 and normal cell line L6 using MTT assay. Compound 12 (Ph₂SnL²), 14 (Et₂SnL³), 19 (Bu₂SnL⁴) was found most active against tested cell lines having IC₅₀ value 22.909-32.303μM. Further, mol. docking study was performed for the active compounds 12, 14 and 20 at 3-dimensional space of enzymes Tyrosine kinase and EGFR kinase domain.

Formula: C7H4Br2O2, 3,5-Dibromosalicylaldehyde reacts with alkyl cyanoacetates in the presence of ammonium acetate to yield 4H- chromenes.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Devi, Jai team published research on Phosphorus, Sulfur and Silicon and the Related Elements in 2021 | 90-59-5

90-59-5, 3,5-Dibromosalicylaldehyde reacts with alkyl cyanoacetates in the presence of ammonium acetate to yield 4H- chromenes.

Devi, Jai;Pachwania, Sushila;Yadav, Jyoti;Kumar, Ashwani research published 《 Pentacoordinated diorganotin(IV) complexes resulting from tridentate (NOO) donor Schiff bases: Synthesis, characterization, in vitro antioxidant, antimicrobial activities, and QSAR studies》, the research content is summarized as follows. Diorganotin(IV) complexes R₂SnL, (R = Me, Et, Bu and Ph) were prepared by the reaction of tridentate (NOO) donor Schiff base ligands with diorganotin(IV) dichloride in an equimolar ratio. The products were characterized by various spectroscopic techniques and phys. and anal. methods (UV-visible, FTIR, NMR, fluorescence, elemental anal.). Spectroscopic data suggest that the Schiff base acts as a tridentate ligand (NOO) coordinated with a central Sn atom via two O and one imine N atom in a pentacoordinated fashion. The synthesized compounds were assayed for their in vitro antimicrobial activity against bacterial and fungal strains. All the compounds displayed promising results with the complexes being more potent than free ligands. The antioxidant activity of the compounds was determined by interaction with 2,2-diphenyl-1-picrylhydrazyl free radical. Complex Ph₂SnL³ () has the most potential antimicrobial activity against all tested strains and also exhibited excellent antioxidant activity. Quant. structure-activity relation of compounds was studied for antimicrobial activity with molar refractivity indexes as significant statistical parameter.

90-59-5, 3,5-Dibromosalicylaldehyde reacts with alkyl cyanoacetates in the presence of ammonium acetate to yield 4H- chromenes.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Devi, Jai team published research on Research on Chemical Intermediates in 2022 | 90-59-5

90-59-5, 3,5-Dibromosalicylaldehyde reacts with alkyl cyanoacetates in the presence of ammonium acetate to yield 4H- chromenes.

Devi, Jai;Pachwania, Sushila;Kumar, Deepak;Jindal, Deepak Kumar;Jan, Suraya;Dash, Ashutosh K. research published 《 Diorganotin(IV) complexes derived from thiazole Schiff bases: synthesis, characterization, antimicrobial and cytotoxic studies》, the research content is summarized as follows. Organotin(IV) complexes are gaining major attention as drug candidates, accordingly we have synthesized a cluster of novel diorganotin(IV) complexes I (R³₂SnClL; R³ = Me, Et, Bu, Ph; R = H, Br; R¹ = H, OH; R² = NO₂, Br) of the corresponding Schiff base ligands (HL¹-HL⁴). The structural elucidation of the compounds was done by using different spectroscopic techniques (UV-Vis, FT-IR, ¹H, ¹³C and ¹¹⁹Sn NMR), mass spectrometry, m.p. and molar conductance measurement. The spectroscopic data recommend that Schiff bases are N,O-bidentate in nature and bind to tin metal via azomethine nitrogen, phenolic oxygen atom and create pentacoordinated environment around central tin metal. To check the biol. utility, the synthesized compounds were tested for antimicrobial activity against different bacterial and fungal strains using serial dilution method and inhibitory activity noted in terms of MIC values (μmol/mL) which displayed that the complexes were more efficient than corresponding Schiff bases and complex 20 (Ph₂SnClL⁴) was most active antimicrobial agent. The compounds were also evaluated for cytotoxic activity against human cancer cell lines- A549 (Lung), PC-3 (Prostate), MDA-MB-231 (Breast), MIA PaCa-2 (pancreas) and human normal cell line fR2 by using MTT method. The results of cytotoxic activity showed that some compounds are active and compounds 10 and 11 (R = H, R¹ = OH, R² = H, R³ = Et, Bu) having IC₅₀ values ranging from 0.01 to 1.42μM are almost equally potent to the standard drug doxorubicin against all examined cell lines and are even less toxic against normal cell line. Diorganotin(IV) complexes of 4-(4-bromophenyl)thiazol-2-amine and salicylaldehyde derivatives were synthesized and exhibited high antibacterial and antitumor activity.

90-59-5, 3,5-Dibromosalicylaldehyde reacts with alkyl cyanoacetates in the presence of ammonium acetate to yield 4H- chromenes.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Das, Tapaswini team published research on Tetrahedron Letters in 2022 | 90-59-5

Synthetic Route of 90-59-5, 3,5-Dibromosalicylaldehyde reacts with alkyl cyanoacetates in the presence of ammonium acetate to yield 4H- chromenes.

Dehydrobromination, Grignard reactions, reductive coupling, Wittig reaction, and several nucleophilic substitution reactions are some of the principal reactions which involve organic bromides. 90-59-5, formula is C7H4Br2O2, Name is 3,5-Dibromo-2-hydroxybenzaldehyde. Organic compounds having carbon bonded to bromine are called organic bromides. Synthetic Route of 90-59-5.

Das, Tapaswini;Mohapatra, Seetaram;Priyadarsini Mishra, Nilima;Nayak, Sabita research published 《 Catalyst and base free aza-Michael addition reaction: Synthesis of poly-substituted 4-pyrazole based benzopyrans》, the research content is summarized as follows. An efficient and catalyst free protocol was disclosed for aza-Michael addition reaction of pyrazoles with 2-aryl-3-nitro-2H-chromene derivatives, which provided synthetically important 4-pyrazole-3-nitrobenzopyrans at room temperature In this one-pot transformation, good to excellent yield of the products up to 84% were obtained and generated a new C-N bond. The relative configuration of the product were characterized by a single crystal X-ray crystallog. This protocol was extensively applicable for the wide substrate scope, high yields, easy accessibility, as well as base and catalyst free condition.

Synthetic Route of 90-59-5, 3,5-Dibromosalicylaldehyde reacts with alkyl cyanoacetates in the presence of ammonium acetate to yield 4H- chromenes.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Davis, Jacqkis team published research on Chemistry – A European Journal in 2022 | 90-59-5

90-59-5, 3,5-Dibromosalicylaldehyde reacts with alkyl cyanoacetates in the presence of ammonium acetate to yield 4H- chromenes.

Davis, Jacqkis;Gharaee, Mojgan;Karunaratne, Chamini V.;Cortes Vazquez, Jose;Haynes, Mikayla;Luo, Weiwei;Nesterov, Vladimir N.;Cundari, Thomas;Wang, Hong research published 《 Asymmetric Synthesis of Chromans Through Bifunctional Enamine-Metal Lewis Acid Catalysis》, the research content is summarized as follows. Cooperative enamine-metal Lewis acid catalysis has emerged as a powerful tool to construct carbon-carbon and carbon-heteroatom bond forming reactions. A concise synthetic method for asym. synthesis of chromans from cyclohexanones and salicylaldehydes has been developed to afford tricyclic chromans containing three consecutive stereogenic centers in good yields (up to 87%) and stereoselectivity (up to 99% ee and 11 : 1 : 1 dr). This difficult organic transformation was achieved through bifunctional enamine-metal Lewis acid catalysis. It is believed that the strong activation of the salicylaldehydes through chelating to the metal Lewis acid and the bifunctional nature of the catalyst accounts for the high yields and enantioselectivity of the reaction. The absolute configurations of the chroman products were established through X-ray crystallog. DFT calculations were conducted to understand the mechanism and stereoselectivity of this reaction.

90-59-5, 3,5-Dibromosalicylaldehyde reacts with alkyl cyanoacetates in the presence of ammonium acetate to yield 4H- chromenes.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Demidov, Maxim R. team published research on Journal of Organic Chemistry in 2021 | 90-59-5

Formula: C7H4Br2O2, 3,5-Dibromosalicylaldehyde reacts with alkyl cyanoacetates in the presence of ammonium acetate to yield 4H- chromenes.

Organobromine compounds, also called organobromides, are organic compounds that contain carbon bonded to bromine. 90-59-5, formula is C7H4Br2O2, The most pervasive is the naturally produced bromomethane. Formula: C7H4Br2O2

Demidov, Maxim R.;Osyanin, Vitaly A.;Osipov, Dmitry V.;Klimochkin, Yuri N. research published 《 Three-Component Condensation of Pyridinium Ylides, β-Ketonitriles, and Aldehydes with Divergent Regioselectivity: Synthesis of 4,5-Dihydrofuran-3- and 2H-Pyran-5-carbonitriles》, the research content is summarized as follows. A library of trans-4,5-dihydrofuran-3-carbonitriles was synthesized in a diastereoselective manner in good yields by the three-component reaction of β-ketonitriles, carbonyl- and semistabilized pyridinium ylide precursors, and aldehydes in the presence of piperidine. This one-pot transformation generates two C-C and one C-O bond and proceeds through a cascade Knoevenagel condensation, a Michael addition, and intramol. S_N2 cyclization. Formation of cyclopropanecarbonitrile derivatives, which in some cases were obtained as major products, was found to be a competing reaction. The use of arylglyoxals changes regioselectivity and leads to 2-hydroxy-2H-pyran-5-carbonitriles.

Formula: C7H4Br2O2, 3,5-Dibromosalicylaldehyde reacts with alkyl cyanoacetates in the presence of ammonium acetate to yield 4H- chromenes.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Damoc, Madalin team published research on Dalton Transactions in 2021 | 90-59-5

Computed Properties of 90-59-5, 3,5-Dibromosalicylaldehyde reacts with alkyl cyanoacetates in the presence of ammonium acetate to yield 4H- chromenes.

Damoc, Madalin;Stoica, Alexandru-Constantin;Dascalu, Mihaela;Asandulesa, Mihai;Shova, Sergiu;Cazacu, Maria research published 《 Dual crystalline-amorphous salen-metal complexes behave like nematic droplets with AIEgens vistas》, the research content is summarized as follows. A series of metal salen complexes, original in view of the presence in their structure of a highly flexible and hydrophobic spacer, were prepared on the basis of the reaction of 1,3-bis(3-aminopropyl)tetramethyldisiloxane with 3,5-dichloro-, 3,5-dibromo- and 3-hydroxy-salicylaldehyde and various metal ions (Co²⁺, Ni²⁺, Cu²⁺ and Zn²⁺). The isolated products were completely characterized from the structural point of view by FTIR, NMR, elemental anal. and single crystal x-ray diffraction, and further studied from the perspective of the behavior induced mainly by the structural peculiarities. Emphasis is placed on self-assembly properties, both in bulk and in solution, depending on temperature, solvent nature and concentration, including thermotropic and lyotropic liquid crystals (LC). LCs that appear as nematic toroidal droplets were fully demonstrated by polarized optical microscopy (POM), DSC, broadband dielec. spectroscopy (BDS) and fluorescence anisotropy studies. The fluorescence anal. results revealed the aggregation-induced emission (AIE) phenomenon, where the emission occurs only for liquid crystals, with a few exceptions. Because these complexes can exist in both amorphous and crystalline states, it raised the question of how properties, such as elec., change when switching from one state to another. These were well highlighted by DSC, BDS, PXRD, FTIR and fluorescence anisotropy.

Computed Properties of 90-59-5, 3,5-Dibromosalicylaldehyde reacts with alkyl cyanoacetates in the presence of ammonium acetate to yield 4H- chromenes.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Chinnasamy, Ragaverthini team published research on Chemistry – A European Journal in 2022 | 90-59-5

Category: bromides-buliding-blocks, 3,5-Dibromosalicylaldehyde reacts with alkyl cyanoacetates in the presence of ammonium acetate to yield 4H- chromenes.

Chinnasamy, Ragaverthini;Ravi, Jada;Vinay Pradeep, Vuppu;Manoharan, Deepak;Emmerling, Franziska;Bhattacharya, Biswajit;Ghosh, Soumyajit;Chandrasekar, Rajadurai research published 《 Adaptable Optical Microwaveguides From Mechanically Flexible Crystalline Materials》, the research content is summarized as follows. Flexible organic crystals (elastic and plastic) are important materials for optical waveguides, tunable optoelectronic devices, and photonic integrated circuits. Highly elastic organic crystals of a Schiff base, 1-((E)(2,5-dichlorophenylimino)Me)naphthalen-2-ol (1), and an azine mol., 2,4-dibromo-6-((E)((E)(2,6-dichlorobenzylidene)hydrazono)Me)phenol (2) are presented. These microcrystals are highly flexible under external mech. force, both in the macroscopic and the microscopic regimes. The mech. flexibility of these crystals arises of weak and dispersive C-H···Cl, Cl···Cl, Br···Br, and π···π stacking interactions. Singly and doubly-bent geometries were achieved from their straight shape by a micromech. approach using the AFM cantilever tip. Crystals of mols. 1 and 2 display a bright-green and red fluorescence (FL), resp., and selective reabsorption of a part of their FL band. Crystals 1 and 2 exhibit optical-path-dependent low loss emissions at the termini of crystal in their straight and even in extremely bent geometries. The excitation position-dependent optical modes appear in both linear and bent waveguides of crystals 1 and 2, confirming their light-trapping ability.

Category: bromides-buliding-blocks, 3,5-Dibromosalicylaldehyde reacts with alkyl cyanoacetates in the presence of ammonium acetate to yield 4H- chromenes.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary