Tag: 100-200

The author of 《Efficient Pincer-Ruthenium Catalysts for Kharasch Addition of Carbon Tetrachloride to Styrene》 were Das, Kanu; Dutta, Moumita; Das, Babulal; Srivastava, Hemant Kumar; Kumar, Akshai. And the article was published in Advanced Synthesis & Catalysis in 2019. Application of 1195-59-1 The author mentioned the following in the article:

A series of NNN pincer-ruthenium complexes (R2NNN)RuCl2(PPh3) (R=Cyclohexyl (Cy), t-Bu (tBu), i-Pr (iPr) and Ph (Ph)) have been synthesized and characterized. These pincer-ruthenium complexes have been used to catalyze the Kharasch addition or atom transfer radical addition (ATRA) of carbon tetrachloride to styrene. Among the pincer-ruthenium catalysts screened for the Kharasch addition, the catalytic activity followed the order (Cy2NNN)RuCl2(PPh3)>(iPr2NNN)RuCl2(PPh3)≫(Ph2NNN)RuCl2(PPh3). The oxidation of Ru(II) is easier with (Cy2NNN)RuCl2(PPh3) and (iPr2NNN)RuCl2(PPh3) in comparison with (Ph2NNN)RuCl2(PPh3) as indicated by cyclic voltammetry studies. The catalyst precursor (R2NNN)RuCl2(PPh3) itself is the resting state of the reaction. The rate determining step involves the generation of the five-coordinate 16-electron ruthenium(II) species (R2NNN)RuCl2. Owing to weaker binding of tri-Ph phosphine to ruthenium, the generation of catalytically active 16-electron species (Cy2NNN)RuCl2 and (iPr2NNN)RuCl2 are more favorable. The complex (Cy2NNN)RuCl2(PPh3) demonstrates very high productivity (5670 turnovers after 48 h at 140 °C) in the absence of any co-catalyst radical initiator. To the best of our knowledge, our turnovers (ca. 5670) are much higher than that reported hitherto. Quantum mech. calculations demonstrate that the path involving the activation of carbon tetrachloride by (Cy2NNN)RuCl2 is more favored than the path where carbon tetrachloride is activated by (Cy2NNN)RuCl2(η2-styrene). D. functional theory (DFT) and kinetic studies are in accord with the widely accepted mechanism involving the single electron transfer (SET) from ruthenium(II) to chloride radical with concomitant generation of a benzyl radical which is trapped by the resulting ruthenium(III) species. The experimental process involved the reaction of 2,6-Pyridinedimethanol(cas: 1195-59-1Application of 1195-59-1)

2,6-Pyridinedimethanol(cas: 1195-59-1) belongs to pyridine. Pyridine derivatives lend themselves to many roles in the spirited field of supramolecular chemistry – whether as the ligand backbone of metal-organic polymers or presiding over the key electronic stations of nanodevices. In biochemistry, pyridine-containing cofactors are necessary nutrients on which our lives depend. Application of 1195-59-1

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The author of 《General and Phosphine-Free Cobalt-Catalyzed Hydrogenation of Esters to Alcohols》 were Shao, Zhihui; Zhong, Rui; Ferraccioli, Raffaella; Li, Yibiao; Liu, Qiang. And the article was published in Chinese Journal of Chemistry in 2019. Application In Synthesis of 3-Pyridinemethanol The author mentioned the following in the article:

The first non-noble metal catalytic system that enabled an efficient hydrogenation of non-activated esters to alcs. in the absence of phosphine ligands (with a maximum turnover number of 2391) was described. The general applicability of this protocol was demonstrated by the high-yielding hydrogenation of 39 ester substrates including aromatic/aliphatic esters, lactones, polyesters and various pharmaceutical mols. In the experimental materials used by the author, we found 3-Pyridinemethanol(cas: 100-55-0Application In Synthesis of 3-Pyridinemethanol)

3-Pyridinemethanol(cas: 100-55-0) belongs to pyridine. Pyridine is very deactivated towards electrophilic substitution with respect to benzene. For this reason classical formylation, using methods such as the Gattermann or Vilsmeier reactions, are not generally successful. Application In Synthesis of 3-Pyridinemethanol

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In 2019,ACS Chemical Neuroscience included an article by Jorg, Manuela; van der Westhuizen, Emma T.; Khajehali, Elham; Burger, Wessel A. C.; White, Jonathan M.; Choy, Kwok H. C.; Tobin, Andrew B.; Sexton, Patrick M.; Valant, Celine; Capuano, Ben; Christopoulos, Arthur; Scammells, Peter J.. SDS of cas: 89466-08-0. The article was titled 《6-phenylpyrimidin-4-ones as positive allosteric modulators at the M1 mAChR: the determinants of allosteric activity》. The information in the text is summarized as follows:

Targeting allosteric sites of the M1 muscarinic acetylcholine receptor (mAChR) is an enticing approach to overcome the lack of receptor subtype selectivity observed with orthosteric ligands. This is a promising strategy for obtaining novel therapeutics to treat cognitive deficits observed in Alzheimer’s disease and schizophrenia, while reducing the peripheral side effects such as seen in the current treatment regimes, which are non-subtype selective. We previously described compound I, the first pos. allosteric modulator (PAM) of the M1 mAChR based on a 6-phenylpyrimidin-4-one scaffold, which has been further developed in this study. Herein, we present the synthesis, characterization, and pharmacol. evaluation of a series of 6-phenylpyrimidin-4-ones with modifications to the 4-(1-methylpyrazol-4-yl)benzyl pendant. Selected compounds were further profiled in terms of their allosteric affinity, cooperativity with acetylcholine (ACh), and intrinsic efficacy. Addnl., I and II were tested in mouse primary cortical neurons, displaying various degrees of intrinsic agonism and potentiation of the acetylcholine response. Overall, the results suggest that the pendant moiety is important for allosteric binding affinity and the direct agonistic efficacy of the 6-phenylpyrimidin-4-one based M1 mAChR PAMs. In the experimental materials used by the author, we found 2-Hydroxyphenylboronic acid(cas: 89466-08-0SDS of cas: 89466-08-0)

2-Hydroxyphenylboronic acid(cas: 89466-08-0) belongs to acyl phenylboronic acid. Phenylboronic acid (PBA) has been used to extract β-blockers (a class of aminoalcohol-containing drugs) from aqueous solution, rat, and human plasma. SDS of cas: 89466-08-0

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In 2019,Current Organocatalysis included an article by Kasar, Sandeep B.; Thopate, Shankar R.. Category: alcohols-buliding-blocks. The article was titled 《Ultrasonically Assisted Efficient and Green Protocol for the Synthesis of 4H-isoxazol-5-ones using Itaconic Acid as a Homogeneous and Reusable Organocatalyst》. The information in the text is summarized as follows:

Itaconic acid was used as a green catalyst for the synthesis of 4H-isoxazol-5-ones derivatives under conventional as well as ultrasound irradiation technique. Ultrasound irradiation condition required less time for the completion of the reaction and also the yields were better. Ambient reaction conditions were used to carry out transformation for multicomponent reaction. Metal-free, mineral acid-free synthesis were key features of the present protocol. In the experiment, the researchers used many compounds, for example, 3-Hydroxybenzaldehyde(cas: 100-83-4Category: alcohols-buliding-blocks)

3-Hydroxybenzaldehyde(cas: 100-83-4) can be used as a reactant along with ethyl acetoacetate and thiourea in the synthesis of corresponding dihydropyrimidine-2-thione (monastrol), using Yb(OTf)3 as a catalyst by Biginelli cyclocondensation reaction.Category: alcohols-buliding-blocks

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In 2017,Fan, Yang; Kass, Steven R. published 《Enantioselective Friedel-Crafts Alkylation between Nitroalkenes and Indoles Catalyzed by Charge Activated Thiourea Organocatalysts》.Journal of Organic Chemistry published the findings.Product Details of 126456-43-7 The information in the text is summarized as follows:

A series of methylated and octylated pyridinium and quinolinium containing thiourea salts with a chiral 2-indanol substituent are reported. These organocatalysts are pos. charged analogs of privileged bis(3,5-trifluoromethyl)phenyl substituted thioureas, and are found to be much more active catalysts despite the absence of an addnl. hydrogen bond donor or acceptor site (i.e., the presence of a heteroatom-hydrogen or heteroatom). Friedel-Crafts reactions of trans-β-nitorostyrenes with indoles are examined, and good yields and enantioselectivities are obtained. Mechanistic studies indicate that this is a second-order transformation under the employed conditions, and is consistent with the dimer of the thiourea being the active catalyst. Charged organocatalysts, consequently, represent an attractive design strategy for catalyst development. After reading the article, we found that the author used (1S,2R)-1-Amino-2,3-dihydro-1H-inden-2-ol(cas: 126456-43-7Product Details of 126456-43-7)

(1S,2R)-1-Amino-2,3-dihydro-1H-inden-2-ol(cas: 126456-43-7) belongs to anime. Milder oxidation, using reagents such as NaOCl, can remove four hydrogen atoms from primary amines of the type RCH2NH2 to form nitriles (R―C≡N), and oxidation with reagents such as MnO2 can remove two hydrogen atoms from secondary amines (R2CH―NHR′) to form imines (R2C=NR′). Tertiary amines can be oxidized to enamines (R2C=CHNR2) by a variety of reagents.Product Details of 126456-43-7

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Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

In 2013,Green and Sustainable Chemistry included an article by Liu, Yi; Sugimoto, Ryuichi; Sumi, Katsuhiro. Name: 4-Butylbenzene-1,2-diol. The article was titled 《Di(isothiocyanato)bis(4-methyl-4′-vinyl-2,2′-bipyridine) ruthenium(II) films deposited on titanium oxide-coated, fluorine-doped tin oxide for an efficient solar cell》. The information in the text is summarized as follows:

Dye-sensitized titanium oxide electrodes were prepared by immobilizing a novel ruthenium complex, di(isothiocyanato) bis(4-methyl-4′-vinyl-2,2′-bipyridine)ruthenium(II) [(NCS)2(mvbpy)2Ru(II)] or the ruthenium complex/sodium 4-vinylbenzenesulfonate onto the surface of a titanium oxide-coated, fluorine-doped tin oxide (TiO2/FTO) electrode through a new electrochem. initiated film formation method, in which the electrolysis step and the film deposition step were individually performed. The incident photon-to-current conversion efficiency (IPCE) of the Ru complex film on a TiO2/FTO electrode was disappointedly insufficient (1.2% at 440 nm). In sharp contrast, the Ru(II) complex/sodium 4-vinylbenzenesulfonate composite film deposited on the surface of a TiO2/FTO electrode showed maximum IPCE of 31.7% at 438 nm. In the experimental materials used by the author, we found 4-Butylbenzene-1,2-diol(cas: 2525-05-5Name: 4-Butylbenzene-1,2-diol)

4-Butylbenzene-1,2-diol(cas: 2525-05-5) belongs to organoboron compounds. Organoboron compounds are versatile intermediates and as such are some of the most important classes of reagents in modern organic chemistry.Name: 4-Butylbenzene-1,2-diol Organoboron compounds are less toxic than organostannane reagents, and unlike alkynylzinc and magnesium, many organoboron compounds possess remarkable oxidative and thermal stabilities.

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Alcohol – Wikipedia,
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《Two tetranuclear 3d-4f heterometal complexes Mn2Ln2 (Ln = Dy, Gd): synthesis, structure, magnetism, and electrocatalytic reactivity for water oxidation》 was written by Lan, Tian-Xiang; Gao, Wei-Song; Chen, Chang-Neng; Wang, Hui-Sheng; Wang, Mei; Fan, Yu-hua. Computed Properties of C7H9NO2This research focused ontransition metal pyridinyldimethanol bishydroxymethylpyridinylmethylester preparation redox potential magnetism; electrochem oxidation catalyst transition metal pyridinyldimethanol bishydroxymethylpyridinylmethoxymethylester complex; crystal structure transition metal pyridinyldimethanol bishydroxymethylpyridinylmethoxymethylester complex. The article conveys some information:

Two Mn/Ln clusters, [Mn2Ln2(O2CMe)6(pdmH)2L](NO3)·H2O (Ln = Dy (1), Gd (2)), were synthesized and exptl. studied by x-ray crystallog., PXRD, magneto- and electrochem., pdmH2 = 2,6-pyridine dimethanol; LH2 = (6-hydroxymethylpyridin-2-yl)-(6-hydroxymethylpyridin-2-ylmethoxy)methanol. By x-ray anal., the two complexes are isomorphous, both possessing one [MnIIMnIIILnIII2(μ3-O)2]6+ core with four metal atoms in one plane arranged in a butterfly conformation. This is the 1st time that mixed-valent manganese (MnII and MnIII) and LnIII heterometal tetranuclear complexes were isolated and characterized. Magnetic susceptibility measurements reveal that compounds 1 and 2 both display overall weak ferromagnetic exchanges between the metal ions within the clusters. The temperature dependencies of the out-of-phase (χM’) and in-phase (χM’) a.c. susceptibility signals exhibit no significant frequency-dependency for compounds 1 and 2, which suggests that the two complexes may not be SMMs. Electrochem. studies indicate that compounds 1 and 2 can both catalyze water oxidation at a potential of ∼1.70 V with an overpotential of ∼880 mV vs. Normal H electrode, which could be due to a cooperative catalytic effect between the manganese and lanthanide ions. After reading the article, we found that the author used 2,6-Pyridinedimethanol(cas: 1195-59-1Computed Properties of C7H9NO2)

2,6-Pyridinedimethanol(cas: 1195-59-1) belongs to pyridine. Pyridine-based materials are valued for their optical and physical properties as well as their medical potential. Additionally, pyridine-based natural products continue to be discovered and studied for their properties and to understand their biosynthesis.Computed Properties of C7H9NO2

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《One-Pot Synthesis of Xanthone by Carbonylative Suzuki Coupling Reaction》 was written by Loureiro, Daniela R. P.; Soares, Jose X.; Maia, Ana; Silva, Andre M. N.; Rangel, Maria; Azevedo, Carlos M. G.; Hansen, Steffen V.; Ulven, Trond; Pinto, Madalena M. M.; Reis, Salette; Afonso, Carlos M. M.. COA of Formula: C6H7BO3This research focused onxanthone preparation one pot Suzuki coupling. The article conveys some information:

In this communication, the first time a one-pot synthesis of the xanthone scaffold based on a carbonylative Suzuki coupling was reported. Iodophenol and (2-methoxyphenyl)boronic acid were coupled under carbon monoxide, generated from a carbon monoxide surrogate. An exptl. data-based model was built to guide the reaction optimization. The optimized conditions were 1 mol% of a pincer complex as palladium catalyst, 5 equiv of K2CO3 as base, and DMF:water (7 : 3) as solvent. The robustness of the synthetic method, namely in terms of the reactants scope, was also evaluated. This approach provided the xanthone scaffold in high yields and provided a deep insight into the carbonylative Suzuki couplings. The experimental process involved the reaction of 2-Hydroxyphenylboronic acid(cas: 89466-08-0COA of Formula: C6H7BO3)

2-Hydroxyphenylboronic acid(cas: 89466-08-0) belongs to acyl phenylboronic acid. Phenylboronic acid (PBA), a synthetic molecule applied in RNA affinity chromatography, is able to form reversible covalent ester bonds with 1,2- or 1,3-cis-doils on the ribose ringCOA of Formula: C6H7BO3

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Quality Control of 3-HydroxybenzaldehydeIn 2022 ,《Design, Synthesis, and Biological Screening for Cytotoxic Activity of Monastrol Analogues》 was published in Polycyclic Aromatic Compounds. The article was written by Asham, Hila; Bohlooli, Shahab; Dostkamel, Donya; Rezvanpoor, Sadaf; Sepehri, Saghi. The article contains the following contents:

A series of 1,2,3,4-tetrahydropyrimidine-5-carboxylate derivatives I (Ar = 3-HOC6H4, 4-O2NC6H4, 4-BrC6H5; X = O, S; R = CH3, C2H5) was synthesized through one-pot condensation reaction. Then, they were investigated for in vitro cytotoxic activity. These derivatives showed a good cytotoxic activity against three human cancer cell lines counting MCF-7, HepG-2, and AGS. Among these derivatives, mols. I (Ar = 4-BrC6H5; X = S; R = C2H5) and I (Ar = 3-HOC6H5; X = S; R = CH3) exhibited the highest activity against all cell lines. In vitro cytotoxicity evaluation on all mols. showed that sulfur atom at C2 position, length chain of ester moiety and different substituents on Ph ring positions of tetrahydropyrimidine influenced the antiproliferative activity. Furthermore, according to docking studies a good correlation between exptl. activity and binding affinity was observed In silico studies of mols. showed the participation of hydrophobic interactions and hydrogen bonds with allosteric site Eg5 active site similar to monastrol, Eg5 inhibitor, and co-crystal ligand. The experimental part of the paper was very detailed, including the reaction process of 3-Hydroxybenzaldehyde(cas: 100-83-4Quality Control of 3-Hydroxybenzaldehyde)

3-Hydroxybenzaldehyde(cas: 100-83-4) is used as an ionophore, during the development of an highly selective and sensitive PVC membrane sensor, which can be used as a Tb3+ ion selective electrode.Quality Control of 3-Hydroxybenzaldehyde

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Alcohol – Wikipedia,
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Recommanded Product: (4-Bromophenyl)methanolIn 2021 ,《TEMPO-Functionalized Nanoreactors from Bottlebrush Copolymers for the Selective Oxidation of Alcohols in Water》 was published in Journal of Organic Chemistry. The article was written by Wang, Maolin; Xu, Zhenkai; Shi, Yi; Cai, Fang; Qiu, Jiaqi; Yang, Guang; Hua, Zan; Chen, Tao. The article contains the following contents:

Preparation of 2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPO)-containing nanoreactors by the self-assembly of amphiphilic bottlebrush copolymers was demonstrated. First, a macromonomer having a norbornenyl polymerizable group were prepared by RAFT polymerization of hydrophobic and hydrophilic monomers. The macromonomer were further subjected to ring-opening metathesis polymerization to produce an amphiphilic bottlebrush copolymer. Further, TEMPO, as a catalyst, were introduced into the hydrophobic block through the activated ester strategy. Finally, TEMPO-functionalized polymeric nanoreactors were successfully obtained by self-assembly in water. The nanoreactors exhibited excellent catalytic activities in selective oxidation of alcs. in water. More importantly, the reaction kinetics showed that the turnover frequency was greatly increased compared to that of the similar nanoreactor prepared from liner copolymers under the same conditions. The outstanding catalytic activities of the nanoreactors from bottlebrush copolymers was attributed to the more stable micellar structure using the substrate concentration effect. Work presents a new strategy to fabricate stable nanoreactors, paving the way for highly efficient organic reactions in aqueous solutions In addition to this study using (4-Bromophenyl)methanol, there are many other studies that have used (4-Bromophenyl)methanol(cas: 873-75-6Recommanded Product: (4-Bromophenyl)methanol) was used in this study.

(4-Bromophenyl)methanol(cas: 873-75-6) undergoes three-component reaction with acetylferrocene and arylboronic acid to give ferrocenyl ketones containing biaryls.Recommanded Product: (4-Bromophenyl)methanol It is used in the synthesis of amphiphilic, symmetric rod-coil, triblock copolymer of poly(9,9-didodecylfluorene-2,7-diyl) and poly(hydroxyl ethyl methacrylate)

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