Day: October 22, 2021

An article Catalyst-Solvent System for PASE Approach to Hydroxyquinolinone-Substituted Chromeno[2,3-b]pyridines Its Quantum Chemical Study and Investigation of Reaction Mechanism WOS:000553858800110 published article about STEP ECONOMY PASE; ONE-POT; CORROSION-INHIBITORS; MULTICOMPONENT REACTIONS; ORGANIC-SYNTHESIS; MILD-STEEL; PARTITION-COEFFICIENTS; ATOM ECONOMY; EFFICIENT; DERIVATIVES in [Ryzhkov, Fedor, V; Ryzhkova, Yuliya E.; Elinson, Michail N.; Fakhrutdinov, Artem N.; Vereshchagin, Anatoly N.; Egorov, Mikhail P.] Russian Acad Sci, ND Zelinsky Inst Organ Chem, Leninsky Pr 47, Moscow 119991, Russia; [Vorobyev, Stepan V.] Gubkin Russian State Univ Oil & Gas, Dept Organ Chem & Petr Chem, 65 Leninsky Prospect, Moscow 119991, Russia in 2020, Cited 63. The Name is 4-Hydroxyquinolin-2(1H)-one. Through research, I have a further understanding and discovery of 86-95-3. Category: indole-building-block

The Pot, Atom, and Step Economy (PASE) approach is based on the Pot economy principle and unites it with the Atom and Step Economy strategies; it ensures high efficiency, simplicity and low waste formation. The PASE approach is widely used in multicomponent chemistry. This approach was adopted for the synthesis of previously unknown hydroxyquinolinone substituted chromeno[2,3-b]pyridines via reaction of salicylaldehydes, malononitrile dimer and hydroxyquinolinone. It was shown that an ethanol-pyridine combination is more beneficial than other inorganic or organic catalysts. Quantum chemical studies showed that chromeno[2,3-b]pyridines has potential for corrosion inhibition. Real time H-1 NMR monitoring was used for the investigation of reaction mechanism and 2-((2H-chromen-3-yl)methylene)malononitrile was defined as a key intermediate in the reaction.

Category: indole-building-block. About 4-Hydroxyquinolin-2(1H)-one, If you have any questions, you can contact Ryzhkov, FV; Ryzhkova, YE; Elinson, MN; Vorobyev, SV; Fakhrutdinov, AN; Vereshchagin, AN; Egorov, MP or concate me.

Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

Authors Hassanzadeh, F; Shirini, F; Mamaghani, M; Daneshvar, N in BENTHAM SCIENCE PUBL LTD published article about in [Hassanzadeh, Fariba; Shirini, Farhad; Mamaghani, Manouchehr; Daneshvar, Nader] Univ Guilan, Coll Sci, Dept Chem, Univ Campus 2, Rasht 4133519141, Iran in 2021.0, Cited 51.0. HPLC of Formula: C8H8O2. The Name is 4-Methoxybenzaldehyde. Through research, I have a further understanding and discovery of 123-11-5

Aim and Objective: In this work, we tried to introduce a non-toxic and stable organic compound named succinimide as a green and efficient organo-catalyst for the promotion of the synthesis of arylidene malononitrile and tetrahydrobenzo[b]pyran derivatives. Using this method led to a clean procedure to achieve these types of bioactive compounds without a specific purification step. The rate and yield of the reactions were excellent, and also succinimide showed acceptable reusability as the catalyst. Materials and Methods: In a 25 mL round-bottom flask, [A: a mixture of aromatic aldehyde (1 mmol), malononitrile (1.1 mmol) and B: a mixture of aromatic aldehyde (1.0 mmol), malononitrile (1.1 mmol)] and succinimide (0.2 mmol) in H2O/EtOH [5 mL (1:1)] was stirred at 80 degrees C for an appropriate time. After completion of the reaction, which was monitored by TLC [n-hexane-EtOAc (7:3)], the mixture was cooled to room temperature, and the solid product was filtered, washed several times with cold distilled water to obtain the corresponding pure product. Results: After the optimization of the conditions and amount of the catalyst, a series of aromatic aldehydes containing either-electron-donating or electron- withdrawing substituents were successfully used for both of the reactions. The reactions rates and yields under the selected conditions were excellent. The nature and electronic properties of the substituents had no obvious effect on the rate and yield of the reaction. Meanwhile, the catalyst showed acceptable reusability for these two reactions. Conclusion: In this work, we have introduced Succinimide as a green and safe organo-catalyst for the efficient synthesis arylidene malononitrile and tetrahydrobenzo[b]pyran derivatives. The results showed that the catalyst had excellent efficiency in green aqueous media and also the reusability of the catalyst was good.

About 4-Methoxybenzaldehyde, If you have any questions, you can contact Hassanzadeh, F; Shirini, F; Mamaghani, M; Daneshvar, N or concate me.. Product Details of 123-11-5

Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

COA of Formula: C9H10O3. Authors Holota, S; Komykhov, S; Sysak, S; Gzella, A; Cherkas, A; Lesyk, R in MDPI published article about in [Holota, Serhii; Sysak, Stepan; Lesyk, Roman] Danylo Halytsky Lviv Natl Med Univ, Dept Pharmaceut Organ & Bioorgan Chem, Pekarska 69, UA-79010 Lvov, Ukraine; [Holota, Serhii] Lesya Ukrainka Volyn Natl Univ, Dept Organ Chem & Pharm, Volya Ave 13, UA-43025 Lutsk, Ukraine; [Komykhov, Sergiy] Natl Acad Sci Ukraine, Inst Single Crystals, State Sci Inst, Nauky Ave 60, UA-61072 Kharkiv, Ukraine; [Komykhov, Sergiy] Kharkov Natl Univ, Appl Chem Dept, Svobody Sq 4, UA-61022 Kharkiv, Ukraine; [Gzella, Andrzej] Poznan Univ Med Sci, Dept Organ Chem, Grunwaldzka 6, PL-60780 Poznan, Poland; [Cherkas, Andriy] Danylo Halytsky Lviv Natl Med Univ, Dept Internal Med 1, Pekarska 69, UA-79010 Lvov, Ukraine; [Lesyk, Roman] Univ Informat Technol & Management Rzeszow, Fac Med, Dept Publ Hlth Dietet & Lifestyle Disorders, Sucharskiego 2, PL-35225 Rzeszow, Poland; [Cherkas, Andriy] Sanofi Aventis Deutschland GmbH, Team Early Projects Type Diabet 1, Therapeut Area Diabet & Cardiovasc Med, Res & Dev, Ind Pk Hochst H831, D-65926 Frankfurt, Germany in 2021.0, Cited 55.0. The Name is 3,4-Dimethoxybenzaldehyde. Through research, I have a further understanding and discovery of 120-14-9

The present paper is devoted to the search for drug-like molecules with anticancer properties using the thiazolo[3,2-b][1,2,4]triazole-6-one scaffold. A series of 24 novel thiazolo-[3,2-b][1,2,4]triazole-6-ones with 5-aryl(heteryl)idene- and 5-aminomethylidene-moieties has been synthesized employing three-component and three-stage synthetic protocols. A mixture of Z/E-isomers was obtained in solution for the synthesized 5-aminomethylidene-thiazolo[3,2-b]-[1,2,4]triazole-6-ones. The compounds have been studied for their antitumor activity in the NCI 60 lines screen. Some compounds present excellent anticancer properties at 10 mu M. Derivatives 2h and 2i were the most active against cancer cell lines without causing toxicity to normal somatic (HEK293) cells. A preliminary SAR study had been performed for the synthesized compounds.

About 3,4-Dimethoxybenzaldehyde, If you have any questions, you can contact Holota, S; Komykhov, S; Sysak, S; Gzella, A; Cherkas, A; Lesyk, R or concate me.. Category: indole-building-block

Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

In 2019 FLAVOUR FRAG J published article about RETENTION INDEXES; ESSENTIAL OIL; TOPOLOGICAL INDEXES; PREDICTION; IDENTIFICATION; FRUITS; L. in [Mladenovic, Marko Z.; Radulovic, Niko S.] Univ Nis, Fac Sci & Math, Dept Chem, Visegradska 33, Nish 18000, Serbia in 2019, Cited 30. The Name is (E)-2-Methylbut-2-enoic acid. Through research, I have a further understanding and discovery of 80-59-1. Application In Synthesis of (E)-2-Methylbut-2-enoic acid

A recent identification of eugenyl (allylmethoxyphenyl) esters as Anthemis segetalis Ten. (Asteraceae) essential oil constituents, accomplished by means of organic synthesis, motivated us to expand the existing synthetic library with an aim to examine the generality of structure-chromatographic property relationships within this series of volatiles. Herein, the design, synthesis, gas-chromatographic and spectral characterization of members of a library of 85 allylmethoxyphenyl esters (64 are completely new) were described. Analysis of experimentally obtained RI data showed that esters of the same acid and different allylmethoxyphenols always elute in the same order from an apolar gas chromatography (DB-5MS) column: 2-allyl-6-methoxyphenyl RI values, several quantitative structure-property relationship models were built up that correlated several easily available parameters (e.g. Wiener [WI], Balaban [BI], and molecular topological [MTI] indices) of the mentioned esters and their RI data. The generated various quantitative structure-property relationships models (equations that predict RIs of esters of different regioisomers of allylmethoxyphenols with the same acids and the ones that predict RIs of esters of different acids with the same allylmethoxyphenols) were tested on data of previously known related esters. RI data of esters of allylmethoxyphenol regioisomers could be successfully predicted based on 1D topological indices, such as the Balaban, Wiener, and molecular topological indices. Together with RI and MS data accumulated in this work, these models represent a new and simple tool for the identification of allylmethoxyphenyl esters that might potentially represent new or rare natural products.

Application In Synthesis of (E)-2-Methylbut-2-enoic acid. About (E)-2-Methylbut-2-enoic acid, If you have any questions, you can contact Mladenovic, MZ; Radulovic, NS or concate me.

Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

Khoshyan, A; Pourtahmasb, M; Feizpour, F; Jafarpour, M; Rezaeifard, A in [Khoshyan, Ashkan; Pourtahmasb, Mehrdad; Feizpour, Fahimeh; Jafarpour, Maasoumeh; Rezaeifard, Abdolreza] Univ Birjand, Fac Sci, Dept Chem, Catalysis Res Lab, Birjand 97179414, Iran published Aerobic {Mo72V30} nanocluster-catalysed heterogeneous one-pot tandem synthesis of benzimidazoles in 2019, Cited 53. Recommanded Product: 100-51-6. The Name is Benzyl Alcohol. Through research, I have a further understanding and discovery of 100-51-6.

A novel heterogeneous one-pot protocol is developed for tandem aerobic synthesis of benzimidazoles through dehydrogenative coupling of primary benzylic alcohols and aromatic diamines co-catalysed by Keplerate-type {Mo72V30} polyoxometalate and N-hydroxyphthalimide (NHPI). The catalytic system also works well for the synthesis of benzimidazoles using benzaldehydes, as commonly used starting materials, in the absence of NHPI. The high activity of the solid nanocluster provides standard conditions avoiding current limitations of oxidation methods including high catalyst loadings. The spectral results and leaching experiments revealed that the nanocapsule preserved its structural integrity after being reused in consecutive runs.

Recommanded Product: 100-51-6. About Benzyl Alcohol, If you have any questions, you can contact Khoshyan, A; Pourtahmasb, M; Feizpour, F; Jafarpour, M; Rezaeifard, A or concate me.

Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

In 2019 ORG LETT published article about ERIOSTEMON; SYNTHASE in [Coleman, Matthew A.; Burchill, Laura; Sumby, Christopher J.; George, Jonathan H.] Univ Adelaide, Dept Chem, Adelaide, SA 5005, Australia in 2019, Cited 12. The Name is 4-Hydroxyquinolin-2(1H)-one. Through research, I have a further understanding and discovery of 86-95-3. Computed Properties of C9H7NO2

The structure of furoerioaustralasine, a unique Australian alkaloid, has been revised based on a concise, biomimetic synthesis. The key step is a stereospecific, intramolecular ring opening of an epoxide to form a central dihydrofuran fused to a quinoline ring system.

About 4-Hydroxyquinolin-2(1H)-one, If you have any questions, you can contact Coleman, MA; Burchill, L; Sumby, CJ; George, JH or concate me.. Name: 4-Hydroxyquinolin-2(1H)-one

Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

Recently I am researching about ENANTIOSELECTIVE SYNTHESIS; ASYMMETRIC HECK; OXINDOLES; ARYLATION; POTENT, Saw an article supported by the ARIADME, part of the European FP7 ITN Community’s Seventh Framework Programme [607517]. Product Details of 100-51-6. Published in GEORG THIEME VERLAG KG in STUTTGART ,Authors: Adeyemi, A; Wetzel, A; Bergman, J; Branalt, J; Larhed, M. The CAS is 100-51-6. Through research, I have a further understanding and discovery of Benzyl Alcohol

A method for highly regio- and stereoselective intramolecular Mizoroki-Heck 5- exo cyclization of aryl iodides to the corresponding spirooxindoles has been developed. Electron-rich and electron-deficient aryl iodide precursors were selectively ring-closed with high stereoselectivity and good yields. The double-bond position in the cyclopentene ring was controlled by careful choice of reaction conditions. These rare spiro compounds were further functionalized to rigidified unnatural amino acid derivatives by a subsequent gas-free Pd(0)-catalyzed alkoxycarbonylation, followed by selective O – and N -deprotections.

About Benzyl Alcohol, If you have any questions, you can contact Adeyemi, A; Wetzel, A; Bergman, J; Branalt, J; Larhed, M or concate me.. Safety of Benzyl Alcohol

Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

Authors Fischer, O; Hubert, A; Heinrich, MR in AMER CHEMICAL SOC published article about DEUTERIUM-EXCHANGE; REGIOSELECTIVE DEUTERATION; ANTIOXIDANT ACTIVITY; PEPTIDE-SYNTHESIS; H/D EXCHANGE; INHIBITION; MECHANISM; METHYL; DISSOCIATION; REACTIVITY in [Fischer, Oliver; Hubert, Anja; Heinrich, Markus R.] Friedrich Alexander Univ Erlangen Nurnberg, Dept Chem & Pharm, Pharmaceut Chem, D-91058 Erlangen, Germany in 2020, Cited 65. Name: m-Methoxyphenol. The Name is m-Methoxyphenol. Through research, I have a further understanding and discovery of 150-19-6

Taking advantage of the differentiating effect of the solvent methanol, deuterations of electron-rich aromatic systems can be carried out under mild acid catalysis and thus under far milder conditions than known so far. The exceptional functional group tolerance observed under the optimized conditions, which even includes highly acid-labile groups, results from a hitherto unexploited shifted selectivity in protonation, and enabled simple and straightforward access to complex deuterium-labeled compounds.

About m-Methoxyphenol, If you have any questions, you can contact Fischer, O; Hubert, A; Heinrich, MR or concate me.. Category: indole-building-block

Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

Recommanded Product: Benzyl Alcohol. I found the field of Chemistry; Engineering very interesting. Saw the article Photocatalytic selective oxidation of benzyl alcohol over ZnTi-LDH: The effect of surface OH groups published in 2020.0, Reprint Addresses Wu, L (corresponding author), Fuzhou Univ, State Key Lab Photocatalysis Energy & Environm, Fuzhou 350116, Fujian, Peoples R China.. The CAS is 100-51-6. Through research, I have a further understanding and discovery of Benzyl Alcohol.

ZnTi-LDH nanosheets have been synthesized as photocatalysts for selective oxidation of benzyl alcohol (BA) to benzaldehyde (BAD) under visible light irradiation. Based on UV-vis DRS, in-situ FTIR and XPS results, it was revealed that BA would be efficiently chemisorbed and activated on ZnTi-LDH forming the surface coordination species, which contributed to harvesting visible light and induced the photocatalytic reaction. The ESR spectra suggested that oxygen vacancies would be produced in ZnTi-LDHs after the adsorption of BA molecules. More exposed surface OH groups would induce more oxygen vacancies, which would serve as the centers for capturing photoelectrons from the photoexcited surface coordination species and act as active sites for enhanced O-2 adsorption and activation, resulting outstanding photocatalytic activity. Finally, a possible mechanism was proposed to illustrate the photocatalytic process which mediated by surface coordination species formed by the interaction between ZnTi-LDH and BA.

About Benzyl Alcohol, If you have any questions, you can contact Zou, JH; Wang, ZT; Guo, W; Guo, BB; Yu, Y; Wu, L or concate me.. Recommanded Product: 100-51-6

Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

An article N-Benzylation of 6-aminoflavone by reductive amination and efficient access to some novel anticancer agents via topoisomerase II inhibition WOS:000523577000001 published article about DERIVATIVES; FLAVONES; TUBULIN; DESIGN; ARREST in [Thorat, Nitin M.; Thopate, Shankar R.] Ahmednagar Coll, Prof John Barnabas Post Grad Sch Biol Studies, Dept Chem, Stn Rd, Ahmednagar 414001, Maharashtra, India; [Thorat, Nitin M.] Maharaja Jivajirao Shinde Arts Sci Commerce Coll, Dept Chem, Shrigonda 413701, Maharashtra, India; [Sarkate, Aniket P.] Dr Babasaheb Ambedkar Marathwada Univ, Dept Chem Technol, Aurangabad 431004, Maharashtra, India; [Lokwani, Deepak K.] RC Patel Inst Pharmaceut Educ & Res, Dept Pharmaceut Chem, Shirpur 425405, Maharashtra, India; [Tiwari, Shailee V.] Durgamata Inst Pharm, Dept Pharmaceut Chem, Parbhani 431401, Maharashtra, India; [Azad, Rajaram] Univ Hyderabad, Dept Anim Biol, Hyderabad 500046, India; [Thopate, Shankar R.] Shri Sadguru Gangageer Maharaj Sci Gautam Arts &, Dept Chem, Ahmednagar 423601, Maharashtra, India in 2021.0, Cited 31.0. COA of Formula: C9H10O3. The Name is 3,4-Dimethoxybenzaldehyde. Through research, I have a further understanding and discovery of 120-14-9

Series of novel N-benzyl derivatives of 6-aminoflavone (9a-n) were synthesized and evaluated for anticancer and topoisomerase II enzyme inhibition activity. All the synthesized compounds were screened for in vitro anticancer activity against human breast cancer cell line (MCF-7) and human lung cancer cell line (A-549). Among the synthesized compounds, 9f and 9g were found to be the most potent anticancer agents against human breast cancer cell line (MCF-7) with IC50 values of 9.35 mu M and 9.58 mu M, respectively. Compounds 9b, 9c and 9n exhibited promising anticancer activity against human lung cancer cell line (A-549) with 43.71%, 46.48% and 44.26% inhibition at the highest concentration of 10 mu M, respectively. Compounds 9c, 9f and 9g have ability to inhibit the topoisomerase II enzyme. Compound 9f showed most potent topoisomerase II enzyme inhibition activity with IC50 value of 12.11 mu M. Further, these compounds have a high potential to be developed as a promising topoisomerase II inhibitors.

COA of Formula: C9H10O3. About 3,4-Dimethoxybenzaldehyde, If you have any questions, you can contact Thorat, NM; Sarkate, AP; Lokwani, DK; Tiwari, SV; Azad, R; Thopate, SR or concate me.

Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles