Month: October 2021

Safety of 3,4-Dimethoxybenzaldehyde. Authors Zhou, LC; Shi, XM; Yin, HH; Huang, Y; Wang, R; Ma, L in WILEY-V C H VERLAG GMBH published article about in [Zhou, Licheng; Shi, Ximeng; Yin, Huanhuan; Huang, Yi; Wang, Rui; Ma, Lei] East China Univ Sci & Technol, Sch Pharm, Shanghai Key Lab New Drug Design, 130 Meilong Rd, Shanghai 200237, Peoples R China in 2021, Cited 36. The Name is 3,4-Dimethoxybenzaldehyde. Through research, I have a further understanding and discovery of 120-14-9

The complex pathogenesis of Alzheimer’s disease (AD) has become a major obstacle in its therapy. One hopeful approach is to develop multifuntional ligands. Here, a total of 23 compounds based on nobiletin structure were designed and synthesized. The neuroprotective activities were evaluated for their antioxidant, anti-inflammatory and anti-A beta(42) (Amyloid beta-protein 42) neurotoxicity properties by MTT assays. The results demonstrated compound A12 was the most promising derivative against inflammatory (14.6 +/- 0.6 %) and cell damages induced by hydrogen peroxide (47.2 +/- 1.1 %), oxygen glucose deprivation (36.2 +/- 1.1 %) and A beta(42) (40.7 +/- 2.1 %). Molecular docking study revealed A12 formed a greater area of interactions with A beta(42) to prevent it from acquiring a beta sheet conformation for aggregation. Structure-activity relationships revealed the introduction of hydroxyl on ring B and aurone skeleton with a five-membered ring C could be benefit to increase their neuroprotective activities. In summary, A12 might represent a promising multifunctional neuroprotective agent against AD.

Safety of 3,4-Dimethoxybenzaldehyde. About 3,4-Dimethoxybenzaldehyde, If you have any questions, you can contact Zhou, LC; Shi, XM; Yin, HH; Huang, Y; Wang, R; Ma, L 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

An article Hydrogen Deuterium Isotopic Labeling Study of Enantioselective Hydrogenation of (E)-2-Methyl-2-butenoic Acid over a Cinchonidine-Modified Pd/C Catalyst WOS:000485218200011 published article about ALPHA,BETA-UNSATURATED CARBOXYLIC-ACIDS; HETEROGENEOUS ASYMMETRIC HYDROGENATION; 2-METHYL-2-PENTENOIC ACID; (E)-ALPHA-PHENYLCINNAMIC ACID; LIGAND ACCELERATION; MODIFIED PALLADIUM; MODIFIED PD/TIO2; SUBSTRATE; MECHANISM; SOLVENT in [Sugimura, Takashi; Tomatsuri, Satoshi; Fujita, Morifumi; Okamoto, Yasuaki] Univ Hyogo, Grad Sch Mat Sci, Kamigori, Hyogo 6781297, Japan in 2019, Cited 37. The Name is (E)-2-Methylbut-2-enoic acid. Through research, I have a further understanding and discovery of 80-59-1. Name: (E)-2-Methylbut-2-enoic acid

In the enantioselecitve hydrogenation of (E)-2-methyl-2-butenoic acid (1) over a cinchonidine-modified Pd/C catalyst, the addition of hydrogen preferentially proceeds from the Re-Si enantioface of the C=C double bond of 1 to yield (S)-2-methylbutanoic acid ((S)-3). Double bond migration of 1 takes place under the reaction conditions and is followed by immediate hydrogenation to yield 3 in a poor enantiomeric purity. Deuterium labeling experiments at 0.1 MPa and 1.9 MPa of D-2 verified the previous assumption of competitive double bond migration. The combination of isotopic labeling experiments and chiral analysis revealed that the double bond migration of 1 proceeds with the same enantiofacial differentiation as the hydrogenation of 1. Thus, interaction of 1 with cinchonidine adsorbed on the Pd surface may control the configuration of the double bond migration and the hydrogenation.

Name: (E)-2-Methylbut-2-enoic acid. About (E)-2-Methylbut-2-enoic acid, If you have any questions, you can contact Sugimura, T; Tomatsuri, S; Fujita, M; Okamoto, Y 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

HPLC of Formula: C8H8O2. Authors Sedenkova, KN; Vasilenko, DA; Zverev, DV; Sadovnikov, KS; Gracheva, YA; Grishin, YK; Kuznetsova, TS; Milaeva, ER; Averina, EB in ELSEVIER published article about in [Sedenkova, Kseniya N.; Vasilenko, Dmitry A.; Zverev, Denis, V; Sadovnikov, Kirill S.; Gracheva, Yulia A.; Grishin, Yuri K.; Kuznetsova, Tamara S.; Milaeva, Elena R.; Averina, Elena B.] Moscow MV Lomonosov State Univ, Dept Chem, Moscow 119991, Russia; [Sedenkova, Kseniya N.; Milaeva, Elena R.; Averina, Elena B.] Russian Acad Sci, Inst Physiol Act Cpds, Chernogolovka 142432, Moscow Region, Russia in 2021.0, Cited 31.0. The Name is 4-Methoxybenzaldehyde. Through research, I have a further understanding and discovery of 123-11-5

New 8-arylidene-4-cyanotetrahydroquinazoline N-oxides were obtained via the condensation of readily available 4-cyanotetrahydroquinazoline N-oxides with aromatic aldehydes. Some of the synthesized compounds revealed fluorescent properties and moderate cytotoxic activity.

About 4-Methoxybenzaldehyde, If you have any questions, you can contact Sedenkova, KN; Vasilenko, DA; Zverev, DV; Sadovnikov, KS; Gracheva, YA; Grishin, YK; Kuznetsova, TS; Milaeva, ER; Averina, EB or concate me.. HPLC of Formula: C8H8O2

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

Application In Synthesis of m-Methoxyphenol. Authors Song, CY; Nie, JQ; Ma, C; Lu, CF; Wang, FY; Yang, GC in ELSEVIER published article about in [Song, Chaoyang; Nie, Junqi; Ma, Chao; Lu, Cuifen; Wang, Feiyi; Yang, Guichun] Hubei Univ, Coll Chem & Chem Engn, Hubei Collaborat Innovat Ctr Adv Organ Chem Mat, Minist Educ Key Lab Synth & Applicat Organ Funct, Wuhan 430062, Peoples R China in 2021, Cited 71. The Name is m-Methoxyphenol. Through research, I have a further understanding and discovery of 150-19-6

1,2,3-Triazole contained conjugated porous polymers (CPPs) have recently emerged as a new class of efficient photocatalysts. To gain more insight into the excellent photocatalytic activity of this kind of CPPs, herein, we report the design and preparation of a series of 1,2,3-triazole-based CPPs via oxidative coupling polymerization to study their photocatalytic performance. These CPPs have donor-acceptor properties and 1,2,3-triazole serves as an electron acceptor. The resulting CPPs with thiophene, carbazole and diphenylamine as electron donor units, respectively, have distinct porosities and optoelectronic properties, and showed effective photocatalytic performance towards oxidative hydroxylation of arylboric acids and alkylation of vinylarenes with diethyl bromomalonate or bromoacetonitrile. The thiophene contained CPP was a more efficient photocatalyst for the catalytic reactions, which can be attributed to its smaller optical band gap and greater charge separation effi-ciency. Furthermore, PTPT has shown reliable recyclability with no significant loss in its catalytic activity.

About m-Methoxyphenol, If you have any questions, you can contact Song, CY; Nie, JQ; Ma, C; Lu, CF; Wang, FY; Yang, GC or concate me.. Application In Synthesis of m-Methoxyphenol

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 Electrochemical phosphorylation of arenols and anilines leading to organophosphates and phosphoramidates WOS:000655187900001 published article about SECONDARY PHOSPHINE OXIDES; FLAME-RETARDANT; ESTERIFICATION; ALCOHOLS; AMINES; THIOLS in [Zhong, Zijian; Xu, Pan; Zhou, Aihua] Jiangsu Univ, Sch Pharm, Xuefu Rd 301, Zhenjiang 212013, Jiangsu, Peoples R China in 2021.0, Cited 36.0. The Name is Mequinol. Through research, I have a further understanding and discovery of 150-76-5. Product Details of 150-76-5

A practical phosphorylation for generating organophosphates and phosphoramidates via electrochemical dehydrogenative cross-coupling of P(O)H compounds with arenols and anilines is disclosed. This method involves using inorganic iodide salts as both redox catalysts and electrolytes in an undivided cell without the addition of oxidants or bases. A preliminary mechanistic study suggests that radicals are not involved in this process. This method is green and eco-friendly and has good functional group tolerance, high yields and broad substrate scope, with the potential for practical synthesis.

Product Details of 150-76-5. About Mequinol, If you have any questions, you can contact Zhong, ZJ; Xu, P; Zhou, AH 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

Computed Properties of C7H8O2. Fan, HL; Peng, XH in [Fan, Heli; Peng, Xiaohua] Univ Wisconsin, Dept Chem & Biochem, Milwaukee, WI 53211 USA; [Fan, Heli; Peng, Xiaohua] Univ Wisconsin, Milwaukee Inst Drug Discovery, Milwaukee, WI 53211 USA published Photoinduced DNA Interstrand Cross-Linking by Benzene Derivatives: Leaving Groups Determine the Efficiency of the Cross-Linker in 2021.0, Cited 54.0. The Name is Mequinol. Through research, I have a further understanding and discovery of 150-76-5.

We have synthesized and characterized two small libraries of 2-OMe or 2-NO2-benzene analogues 2a-i and 3a-i containing a wide variety of leaving groups. Irradiation of these compounds at 350 nm generated benzyl radicals that were spontaneously oxidized to benzyl cations directly producing DNA interstrand cross-links (ICLs). Compounds with a 2-methoxy substituent showed a faster cross-linking reaction rate and higher ICL efficiency than the corresponding 2-nitro analogues. Apart from the aromatic substituent, the benzylic leaving groups greatly affected DNA cross-linking efficiency. Higher ICL yields were observed for compounds with OCH3 (3b), OCH2Ph (3d), or Ph3P+ (3i) as leaving groups than those containing OAc (3a), NMe2 (3e), morpholine (3f), OCH2CH=CH2 (3c), SPh (3g), or SePh (3h). The heat stability study of the isolated ICL products indicated that dGs were the preferred alkylation sites in DNA for the benzyl cations produced from 2a-i, 3c, and 3e-i while 3a (L = OAc), 3b (L = OMe), and 3d (L = OCH2Ph) showed a similar photoreactivity toward dGs and dAs. Although the photogenerated benzyl cations alkylated dG, dC, and dA, ICL assay with variation of DNA sequences showed that the ICL reaction occurred with opposing dG/dC but not with staggered dA/dA.

About Mequinol, If you have any questions, you can contact Fan, HL; Peng, XH or concate me.. Computed Properties of C7H8O2

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

Computed Properties of C7H6O2. In 2020.0 BIOORG MED CHEM LETT published article about ANTIFUNGAL; LIPOPHILICITY in [Stingaci, Eugenia; Zveaghinteva, Marina; Pogrebnoi, Serghei; Lupascu, Lucian; Macaev, Fliur] Inst Chem, Lab Organ Synth & Biopharmaceut, 3 Str Acad, Kishinev, Moldova; [Valica, Vladimir; Uncu, Livia; Smetanscaia, Anastasia; Drumea, Maricica; Macaev, Fliur] Nicolae Testemitanu State Univ Med & Pharm, Sci Ctr Drug Res, Kishinev, Moldova; [Petrou, Anthi; Geronikaki, Athina] Aristotle Univ Thessaloniki, Dept Pharm, Sch Hlth, Thessaloniki 54124, Greece; [Ciric, Ana; Glamoclija, Jasmina; Sokovic, Marina] Univ Belgrade, Natl Inst Republ Serbia, Inst Biol Res Sinisa Stankovic, Dept Plant Physiol, Bulevar Despota Stefana 142, Belgrade 11000, Serbia; [Kravtsov, Victor] Inst Appl Phys, Lab Phys Methods Solid State Invest Tadeusz Malin, 5 Str Acad, Kishinev, Moldova in 2020.0, Cited 23.0. The Name is 3-Hydroxybenzaldehyde. Through research, I have a further understanding and discovery of 100-83-4.

1,2,4-Triazole is a very important scaffold in medicinal chemistry due to the wide spectrum of biological activities and mainly antifungal activity of 1,2,4-triazole derivatives. The main mechanism of antifungal action of the latter is inhibition of 14-alpha-demethylase enzyme (CYP51). The current study presents synthesis and evaluation of eight triazole derivatives for their antimicrobial activity. Docking studies to elucidate the mechanism of action were also performed. The designed compounds were synthesized using classical methods of organic synthesis. The in vivo evaluation of antimicrobial activity was performed by microdilution method. All tested compounds showed good antibacterial activity with MIC and MBC values ranging from 0.0002 to 0.0069 mM. Compound 2 h appeared to be the most active among all tested with MIC at 0.0002-0.0033 mM and MBC at 0.0004-0.0033 mM followed by compounds 2f and 2g. The most sensitive bacterium appeared to be Xanthomonas campestris while Erwinia amylovora was the most resistant. The evaluation of antifungal activity revealed that all compounds showed good antifungal activity with MIC values ranging from 0.02 mM to 0.52 mM and MFC from 0.03 mM to 0.52 mM better than reference drugs ketoconazole (MIC and MFC values at 0.28-1.88 mM and 0.38 mM to 2.82 mM respectively) and bifonazole (MIC and MFC values at 0.32-0.64 mM and 0.64-0.81 mM). The best antifungal activity is displayed by compound 2 h with MIC at 0.02-0.04 mM and MFC at 0.03-0.06 mM while compound 2a showed the lowest activity. The results showed that these compounds could be lead compounds in search for new potent antimicrobial agents. Docking studies confirmed experimental results.

Computed Properties of C7H6O2. About 3-Hydroxybenzaldehyde, If you have any questions, you can contact Stingaci, E; Zveaghinteva, M; Pogrebnoi, S; Lupascu, L; Valica, V; Uncu, L; Smetanscaia, A; Drumea, M; Petrou, A; Ciric, A; Glamoclija, J; Sokovic, M; Kravtsov, V; Geronikaki, A; Macaev, F 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

An article 1,5,7-Triazabicylodec-5-ene-Promoted Direct Vinylogous Aldol Reaction for the Synthesis of 3-Hydroxy-2-oxoindole Derivatives WOS:000460584600009 published article about CATALYTIC ASYMMETRIC-SYNTHESIS; ENANTIOSELECTIVE SYNTHESIS; DIASTEREOSELECTIVE SYNTHESIS; OXINDOLES; CONSTRUCTION; ISATINS; ALKALOIDS; ALDEHYDES; KETONES; ESTERS in [Zhang, Xianhui; Zhou, Li; Mahmood, Qaiser; Zhao, Mengmeng; Wang, Xiaowu; Wang, Qinggang] Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Key Lab Biobased Mat, 189 Songling Rd, Qingdao 266101, Peoples R China; [Zhang, Xianhui; Zhou, Li] Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing 10049, Peoples R China in 2019.0, Cited 57.0. Application In Synthesis of Benzyl Alcohol. The Name is Benzyl Alcohol. Through research, I have a further understanding and discovery of 100-51-6

A simple and efficient method has been developed for the synthesis of 3-hydroxy-2-oxoindole derivatives through a direct vinylogous aldol reaction of allylic esters with isatins, catalyzed by 1,5,7-triazabicyclodec-5-ene. This method affords a variety of 3-hydroxy-2-oxoindole derivatives in moderate to excellent yields with high regioselectivities. An asymmetric version of this reaction catalyzed by Corey’s chiral guanidine proceeded with moderate enantioselectivity. The protocol can also be used to synthesize isatin spiro ethers.

Application In Synthesis of Benzyl Alcohol. About Benzyl Alcohol, If you have any questions, you can contact Zhang, XH; Zhou, L; Mahmood, Q; Zhao, MM; Wang, XW; Wang, QG 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

An article Comprehensive two-dimensional liquid chromatography-based quali-quantitative screening of aqueous phases from pyrolysis bio-oils WOS:000548193800001 published article about ORGANIC-COMPOUNDS; BIOMASS RESIDUES; SEPARATION; COFFEE; TEMPERATURE; CONVERSION; PRODUCTS; SEEDS in [Lazzari, Eliane; Caramao, Elina B.] Inst Chem, Porto Alegre, RS, Brazil; [Arena, Katia; Dugo, Paola; Mondello, Luigi] Univ Messina, Dept Chem Biol Pharmaceut & Environm Sci, Messina, Italy; [Caramao, Elina B.] Univ Tiradentes, Dept Ind Biotechnol, Aracaju, Sergipe, Brazil; [Dugo, Paola; Mondello, Luigi] Univ Campus Biomed, Dept Med, Unit Food Sci & Nutr, Rome, Italy; [Dugo, Paola; Mondello, Luigi] Univ Messina, Dept Chem Biol Pharmaceut & Environm Sci, Chromaleont Srl, Messina, Italy; [Herrero, Miguel] CSIC UAM, Inst Food Sci Res CIAL, Lab Foodom, Nicolas Cabrera 9, Madrid 28049, Spain in 2021.0, Cited 39.0. The Name is 4′-Hydroxyacetophenone. Through research, I have a further understanding and discovery of 99-93-4. Product Details of 99-93-4

Pyrolysis processes are an alternative to minimize the environmental problem associated to agrifood industrial wastes. The main product resulting from these processes is a high-value liquid product, called bio-oil. Recently, the use of comprehensive two-dimensional liquid chromatography (LC x LC) has been demonstrated as a useful tool to improve the characterization of the water-soluble phases of bio-oils, considering their complexity and high water content. However, the precise composition of bio-oils from different agrifood byproducts is still unknown. In the present study, the qualitative and quantitative screening of eight aqueous phases from different biomasses, not yet reported in the literature, using LC x LC is presented. The two-dimensional approach was based on the use of two reverse phase separations. An amide column in the first dimension together with a C18 column in the second dimension were employed. Thanks to the use of diode array and mass spectrometry detection, 28 compounds were identified and quantified in the aqueous phase samples with good figures of merit. Samples showed a distinct quali-quantitative composition and a great predominance of compounds belonging to aldehydes, ketones and phenols, most of them with high polarity.

About 4′-Hydroxyacetophenone, If you have any questions, you can contact Lazzari, E; Arena, K; Caramao, EB; Dugo, P; Mondello, L; Herrero, M or concate me.. Product Details of 99-93-4

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: 4-Methoxybenzaldehyde. In 2021 RES CHEM INTERMEDIAT published article about N,N’-CYCLIC AZOMETHINE IMINES; 1,3-DIPOLAR CYCLOADDITION; ENANTIOSELECTIVE CONSTRUCTION; CHALCONES; FRAMEWORK; YLIDE in [Chithiraikumar, Chinnadurai; Ponmuthu, Kottala Vijaya; Harikrishnan, Muniyasamy; Malini, Nelson; Sepperumal, Murugesan; Siva, Ayyanar] Madurai Kamaraj Univ, Sch Chem, Dept Inorgan Chem, Supramol & Organomet Chem Lab, Madurai 625021, Tamil Nadu, India in 2021, Cited 34. The Name is 4-Methoxybenzaldehyde. Through research, I have a further understanding and discovery of 123-11-5.

A 1,3-dipolar cycloaddition reaction has been performed under organocatalytic conditions with high enantioselectivity by the utilization of bipyridine-based chiral quaternary ammonium bromide as an organocatalyst. Here, the reaction of 1,3-dipolar cycloaddition of azomethine ylide generated in situ from the decarboxylative condensation of alpha-amino acids and non-enolizable 1,2-diketones to the above dipolarophiles takes place.

About 4-Methoxybenzaldehyde, If you have any questions, you can contact Chithiraikumar, C; Ponmuthu, KV; Harikrishnan, M; Malini, N; Sepperumal, M; Siva, A or concate me.. Recommanded Product: 4-Methoxybenzaldehyde

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