Month: November 2022

In 2016,Barday, Manuel; Ho, Kelvin Y. T.; Halsall, Christopher T.; Aissa, Christophe published 《Regioselective Synthesis of 3-Hydroxy-4,5-alkyl-Substituted Pyridines Using 1,3-Enynes as Alkynes Surrogatesã€?Organic Letters published the findings.Related Products of 18621-18-6 The information in the text is summarized as follows:

The poor regioselectivity of the [4 + 2] cycloaddition of 3-azetidinones with internal alkynes bearing two alkyl substituents via nickel-catalyzed carbon-carbon activation is addressed using 1,3-enynes as substrates. The judicious choice of substitution on the enyne enables complementary access to each regioisomer of 3-hydroxy-4,5-alkyl-substituted pyridines, which are important building blocks in medicinal chem. endeavors. In addition to this study using Azetidin-3-ol hydrochloride, there are many other studies that have used Azetidin-3-ol hydrochloride(cas: 18621-18-6Related Products of 18621-18-6) was used in this study.

Azetidin-3-ol hydrochloride(cas:18621-18-6) is one of azetidine.Azetidines (azacyclobutanes) constitute a well-known class of heterocyclic compounds. Azetidine scaffold has been discovered in several natural products.Related Products of 18621-18-6 Several pharmacologically important synthetic compounds also contain azetidine ring. Because of inherent ring strain, the synthesis of azetidines is a challenging endeavor.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

In 2017,Park, Jinyoung; Choi, Seoyoung; Lee, Yeosan; Cho, Seung Hwan published 《Chemo- and stereoselective crotylation of aldehydes and cyclic aldimines with allylic gem-diboronate esterã€?Organic Letters published the findings.Reference of Bis[(pinacolato)boryl]methane The information in the text is summarized as follows:

We report a highly chemo- and stereoselective crotylation of aldehydes and cyclic aldimines with allylic-gem-diboronate ester (E)-MeCH:CHCH(Bpin)2 (2a), which as a new type of organoboron reagent. Crotylation of aldehydes R1CHO with 2a affords cyclic vinylboronates I (4a-q; R1 = aryl, 2-furyl, 2-thienyl, PhCH:CH, PhCH2CH2), while cyclic aromatic aldimines R2C6H3-1,2-OSO2N:CH gave vinylboronates II (6a-l; R2 = H, halo, Me, MeO, benzo, OCH2O) in excellent stereoselectivity, forming anti-5,6-disubstituted oxaborinin-2-ols or (E)-δ-boryl-anti-homoallylic amines in high efficiency. The reaction shows a wide range of substrate scope and excellent functional group tolerance. The synthetic applications of the obtained products, including stereospecific C-C, C-O, and C-Cl bond formation, are also demonstrated. After reading the article, we found that the author used Bis[(pinacolato)boryl]methane(cas: 78782-17-9Reference of Bis[(pinacolato)boryl]methane)

Bis[(pinacolato)boryl]methane(cas: 78782-17-9) 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. This stems from their ease of preparation combined with their ability to undergo a broad range of chemical transformations.Reference of Bis[(pinacolato)boryl]methane

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

In 2018,Sasano, Yusuke; Kogure, Naoki; Nagasawa, Shota; Kasabata, Koki; Iwabuchi, Yoshiharu published �-Azaadamantane N-oxyl (AZADO)/Cu Catalysis Enables Chemoselective Aerobic Oxidation of Alcohols Containing Electron-Rich Divalent Sulfur Functionalities�Organic Letters published the findings.Recommanded Product: 27489-62-9 The information in the text is summarized as follows:

The chemoselective oxidation of alcs. containing electron-rich sulfur functionalities (e.g., 1,3-dithianes and sulfides) into their corresponding carbonyl compounds with the sulfur groups can sometimes be a demanding task in modern organic chem. A reliable method for this transformation, which features azaadamantane-type nitroxyl radical/copper catalysis using ambient air as the terminal oxidant is reported. The superiority of the developed method was demonstrated by comparing it with various conventional alc. oxidation methods. The experimental part of the paper was very detailed, including the reaction process of trans-4-Aminocyclohexanol(cas: 27489-62-9Recommanded Product: 27489-62-9)

trans-4-Aminocyclohexanol(cas: 27489-62-9) 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―NHRâ€? to form imines (R2C=NRâ€?. Tertiary amines can be oxidized to enamines (R2C=CHNR2) by a variety of reagents.Recommanded Product: 27489-62-9

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

In 2018,Boca, Roman; Rajnak, Cyril; Moncol, Jan; Titis, Jan; Valigura, Dusan published 《Breaking the Magic Border of One Second for Slow Magnetic Relaxation of Cobalt-Based Single Ion Magnetsã€?Inorganic Chemistry published the findings.Safety of 2,6-Pyridinedimethanol The information in the text is summarized as follows:

Instead of assembling complex clusters and/or expensive lanthanide-based systems as single ion magnets, we are focusing on mononuclear cobalt(II) systems among which the complex under study, [Co(pydca)(dmpy)]2·H2O (1), shows a field supported slow magnetic relaxation on the order of seconds at low temperature (pydca = pyridine-2,6-dicarboxylato, dmpy = 2,6-dimethanolpyridine). The low-frequency relaxation time is as slow as τ(LF) = 1.35(6) s at T = 1.9 K and BDC = 0.4 T. The properties of 1 are compared to the previously reported nickel and copper analogs which were the first examples of single ion magnets in the family of Ni(II) and Cu(II) complexes. In the experiment, the researchers used 2,6-Pyridinedimethanol(cas: 1195-59-1Safety of 2,6-Pyridinedimethanol)

2,6-Pyridinedimethanol(cas: 1195-59-1) 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. Safety of 2,6-Pyridinedimethanol

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

In 2018,MedChemComm included an article by Panczyk, Katarzyna; Zelaszczyk, Dorota; Koczurkiewicz, Paulina; Sloczynska, Karolina; Pekala, Elzbieta; Zeslawska, Ewa; Nitek, Wojciech; Zmudzki, Pawel; Marona, Henryk; Waszkielewicz, Anna. Formula: C6H13NO. The article was titled 《Synthesis and anticonvulsant activity of phenoxyacetyl derivatives of amines, including aminoalkanols and amino acidsã€? The information in the text is summarized as follows:

A series of new phenoxyacetamides were prepared via multistep chem. synthesis as a continuation of the research carried out on di- and tri-substituted phenoxyalkyl and phenoxyacetyl derivatives of amines. The obtained compounds varied in an amide component, for example aminoalkanol or (un)modified amino acid moieties were introduced. The structures of selected products were confirmed by means of crystallog. methods. All compounds were the subject of preliminary screening for potential anticonvulsant activity (MES, 6 Hz and/or scMET tests) and neurotoxicity (rotarod) in mice after i.p. administration, while several active compounds were subsequently examined in addnl. models (e.g. MES and rotarod – rats, p.o. or i.p., hippocampal kindling – rats, i.p.). Finally, safety studies (cytotoxicity and cell proliferation assays on astrocytes, metabolic stability assessment, mutagenicity evaluation) were performed for several active compounds, including the most promising one (R-(-)-2-(2,6-dimethylphenoxy)-N-(1-hydroxypropan-2-yl)acetamide, MES ED50 = 12.00 mg per kg b.w., rats, p.o.). The experimental part of the paper was very detailed, including the reaction process of trans-4-Aminocyclohexanol(cas: 27489-62-9Formula: C6H13NO)

trans-4-Aminocyclohexanol(cas: 27489-62-9) belongs to anime.Typically the presence of an amine functional group is deduced by a combination of techniques, including mass spectrometry as well as NMR and IR spectroscopies. 1H NMR signals for amines disappear upon treatment of the sample with D2O. In their infrared spectrum primary amines exhibit two N-H bands, whereas secondary amines exhibit only one.Formula: C6H13NO

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

In 2019,Catalysis Letters included an article by Khalifeh, Reza; Shahimoridi, Roghayeh; Rajabzadeh, Maryam. Name: 3-Hydroxybenzaldehyde. The article was titled 《Design and Synthesis of Novel Cage like CuFe2O4 Hollow Nanostructure as an Efficient Catalyst for Synthesis of 4,4′-(aryl methylene)bis(3-methyl-1H-pyrazol-5-ol)sã€? The information in the text is summarized as follows:

Cage like CuFe2O4 hollow nanostructure has been synthesized successfully using hard template method under the hydrothermal condition. Cu(NO3)2·6H2O, Fe(NO3)2·9H2O and glucose were dissolved in water, and the mixture was heated to 180 °C in an autoclave. The removal of carbon was achieved by calcination at 800 °C and finally, the cage like CuFe2O4 hollow structure was obtained. This cage like CuFe2O4 hollow structure was characterized by FE-SEM, EDS, TEM and XRD. The catalytic performance of this hollow nanostructure was evaluated for the synthesis of bis pyrazol-5-ols. To this end, the one pot condensation reactions of phenylhydrazine, Et acetoacetate and different aromatic aldehyde at 80 °C under the solvent free condition were performed. The optimum amount of applied catalyst for this transformation was obtained to be 0.04 mol %. Noteworthy, catalyst was easily recoverable and was reused for 7 times with the remaining of its initial structure as well as its catalytic activity. Cage like CuFe2O4 hollow nanostructure are stably and efficiently attainable for conversion of precursors to 4,4′-(aryl methylene)bis(3-methyl-1H-pyrazol-5-ol)s. In the experiment, the researchers used many compounds, for example, 3-Hydroxybenzaldehyde(cas: 100-83-4Name: 3-Hydroxybenzaldehyde)

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.Name: 3-Hydroxybenzaldehyde

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

In 2019,Organic Letters included an article by Nishino, Soshi; Hirano, Koji; Miura, Masahiro. Electric Literature of C13H26B2O4. The article was titled 《Copper-Catalyzed Electrophilic Amination of gem-Diborylalkanes with Hydroxylamines Providing α-Aminoboronic Acid Derivativesã€? The information in the text is summarized as follows:

A copper-catalyzed electrophilic amination of gem-diborylalkanes with hydroxylamines has been developed. The key to its success is the use of the Me3Si-modified 1,2-bis(diphenylphosphino)benzene ligand. Addnl., the reactivity of neopentylglycol derivatives compared to that of commonly used pinacol-derived ones is found to be higher, particularly in the case of relatively sterically congested substrates. The copper catalysis presented here enables the first successful catalytic carbon-heteroatom bond forming reaction of gem-diborylalkanes to form the corresponding α-aminoboronic acid derivatives, which are of great interest in medicinal and pharmaceutical chem. In the experiment, the researchers used Bis[(pinacolato)boryl]methane(cas: 78782-17-9Electric Literature of C13H26B2O4)

Bis[(pinacolato)boryl]methane(cas: 78782-17-9) belongs to organoboron compounds.Electric Literature of C13H26B2O4 Organoboron compounds have been a cornerstone of synthetic transformations for decades. Areas such as boron-containing catalysts, metalate chemistry, photoredox methods, and boryl anions have brought significant new developments in understanding and provided new reactivity upon.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

The author of 《Development of Imidazo[1,2-a]pyridine Derivatives with an Intramolecular Hydrogen-Bonded Seven-Membered Ring Exhibiting Bright ESIPT Luminescence in the Solid Stateã€?were Mutai, Toshiki; Muramatsu, Tatsuya; Yoshikawa, Isao; Houjou, Hirohiko; Ogura, Masaru. And the article was published in Organic Letters in 2019. Formula: C6H7BO3 The author mentioned the following in the article:

Imidazo[1,2-a]pyridine derivatives with different hydroxyaryl units (1-3), which could potentially form an intramol. hydrogen-bonded seven-membered ring in either a planar or a twisted conformation, were newly developed, and the effect of conformation and steric repulsion on the excited-state intramol. proton transfer (ESIPT) luminescence was evaluated. Among them, 1 and 2 formed an intramol. hydrogen-bonded seven-membered ring in the crystalline state and exhibited efficient ESIPT luminescence in the solid state (quantum yield up to 0.45).2-Hydroxyphenylboronic acid(cas: 89466-08-0Formula: C6H7BO3) was used in this study.

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. Formula: C6H7BO3

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

The author of �-BocNH-ABNO-catalyzed aerobic oxidation of alcohol at room temperature and atmospheric pressure�were Zhao, Yajing; Li, Yutong; Shen, Zhenlu; Hu, Xinquan; Hu, Baoxiang; Jin, Liqun; Sun, Nan; Li, Meichao. And the article was published in Tetrahedron Letters in 2019. Category: alcohols-buliding-blocks The author mentioned the following in the article:

A transition-metal-free catalytic system has been developed for selective transformation of alc., e.g., 1,2,3,4-tetrahydronaphthalen-1-ol to aldehydes or ketones, e.g., 1,2,3,4-tetrahydronaphthalen-1-one. The reactions were performed with 3-(tert-butoxycarbonylamino)-9-azabicyclo[3.3.1]nonane N-oxyl (3-BocNH-ABNO) as the catalyst, NaNO2 as the co-catalyst, mol. oxygen as the terminal oxidant, and AcOH as the solvent under room temperature This catalytic system exhibited broad functional group tolerance. A series of alc. substrates, including primary and secondary benzylic alcs., heteroaromatic analogs, primary and secondary aliphatic alcs., could be converted into their corresponding aldehydes and ketones in good conversions and selectivities. In the experiment, the researchers used 3-Pyridinemethanol(cas: 100-55-0Category: alcohols-buliding-blocks)

3-Pyridinemethanol(cas: 100-55-0) belongs to pyridine. Pyridine is a relatively complex molecule and exhibits a number of different bands in IR spectra. Among others, the bands characterizing the ν8a and ν19b modes have been found to be sensitive to the coordination or protonation of the molecule. Note that the band that is diagnostic for the PyH+ ion at about 1545 cmâˆ?1 (ν19b mode) does not overlap with any of the other bands.Category: alcohols-buliding-blocks

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

The author of 《A Highly Active PN3 Manganese Pincer Complex Performing N-Alkylation of Amines under Mild Conditionsã€?were Homberg, Leonard; Roller, Alexander; Hultzsch, Kai C.. And the article was published in Organic Letters in 2019. Product Details of 873-75-6 The author mentioned the following in the article:

A highly active Mn(I) catalyst based on a nonsym. PN3-ligand scaffold for the N-alkylation of amines with alcs. using the borrowing hydrogen methodol. is reported. A broad range of anilines and the more challenging aliphatic amines were alkylated with primary and secondary alcs. Moreover, the combination of low catalyst loadings and mild reaction conditions provides high efficiency for this atom-economic transformation. After reading the article, we found that the author used (4-Bromophenyl)methanol(cas: 873-75-6Product Details of 873-75-6)

(4-Bromophenyl)methanol(cas: 873-75-6) undergoes three-component reaction with acetylferrocene and arylboronic acid to give ferrocenyl ketones containing biaryls.Product Details of 873-75-6 It undergoes efficient trimethylsilylation reaction with 1,1,1,3,3,3-hexamethyldisilazane in the presence of catalytic amount of aspartic acid in acetonitrile.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts