Alcohols-buliding-blocks

Barman, Ranajit’s team published research in ACS Biomaterials Science & Engineering in 2020 | CAS: 534-03-2

2-Aminopropane-1,3-diol(cas: 534-03-2) belongs to anime. Primary amines having a tertiary alkyl group (R3CNH2) are difficult to prepare with most methods but are made industrially by the Ritter reaction. In this method a tertiary alcohol reacts with hydrogen cyanide (HCN) in the presence of a concentrated strong acid; a formamide, RNH―CHO, is formed first, which then undergoes hydrolysis.SDS of cas: 534-03-2

《Self-Assembled Polyurethane Capsules with Selective Antimicrobial Activity against Gram-Negative E. coli》 was published in ACS Biomaterials Science & Engineering in 2020. These research results belong to Barman, Ranajit; Mondal, Tathagata; Sarkar, Jayita; Sikder, Amrita; Ghosh, Suhrit. SDS of cas: 534-03-2 The article mentions the following:

This article reports the antimicrobial activity of two segmented amphiphilic polyurethanes, PU-1 and PU-2, containing a primary or secondary amine group, resp. In acidic water, intrachain H-bonding among the urethanes followed by hierarchical assembly resulted in the formation of capsules (Dh = 120 ± 20 and 100 ± 17 nm for PU-1 and PU-2, resp.) with a highly pos. surface charge. They showed selective interactions with bacterial cell mimicking liposomes over mammalian cell mimicking liposomes with favorable enthalpy and entropy contributions, which was attributed to the electrostatic interaction and hydrophobic effect. Antimicrobial studies with Escherichia coli revealed very low min. inhibitory concentration (MIC) values of 7.8 and 15.6μg/mL for PU-1 and PU-2, resp., indicating their ability to efficiently kill Gram-neg. bacteria. Killing of Gram-pos. Staphylococcus aureus was noticed only at C = 500μg/mL, indicating unprecedented selectivity for E. coli, which was further confirmed by SEM (SEM) studies. Hemolysis assay revealed HC50 values of 453 and 847μg/mL for PU-1 and PU-2, resp., which were >50 times higher than their resp. MIC values, thus making them attractive antimicrobial materials. Ortho-nitrophenyl-β-galactoside (ONPG) assay and live-dead fluorescence assay confirmed that for both the polymers, a membrane disruption pathway was operative for wrapping of the bacterial membrane, similar to what was proposed for antimicrobial peptides. SEM images of polymer-treated E. coli bacteria helped in visualization of the pore formation and the disrupted membrane structure. In the experiment, the researchers used many compounds, for example, 2-Aminopropane-1,3-diol(cas: 534-03-2SDS of cas: 534-03-2)

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Li, Xiangyu’s team published research in Journal of the American Chemical Society in 2020 | CAS: 78782-17-9

Bis[(pinacolato)boryl]methane(cas: 78782-17-9) belongs to organoboron compounds.Quality Control of Bis[(pinacolato)boryl]methane 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.

《Stereodivergent Asymmetric Synthesis of α,β-Disubstituted β-Aminoalkylboronic Acid Derivatives via Group-Selective Protodeboronation Enabling Access to the Elusive Anti Isomer》 was published in Journal of the American Chemical Society in 2020. These research results belong to Li, Xiangyu; Hall, Dennis G.. Quality Control of Bis[(pinacolato)boryl]methane The article mentions the following:

Chiral β-aminoalkylboronates generate growing interest as versatile synthetic building blocks to access β-aminoalcs. and other useful compounds, and also as bioisosteres of β-amino acids in drug discovery. In this study, the lack of methodol. to access both syn and anti diastereomers of optically enriched, acyclic α,β-disubstituted β-aminoalkylboronates is addressed with the development of a divergent, diastereoselective strategy for the monoprotodeboration of β-amino gem-bis(boronate) precursors. To this end, new reaction conditions were successfully optimized to provide the elusive anti diastereomer by inverting a sequence of desulfinylation and protodeboronation. The desired syn or anti isomers are isolated independently in good yields and excellent diastereoselectivity (up to >20:1 dr) for a wide scope of substituents. The diastereotopic group selectivity of the new conditions yielding the anti isomer is rationalized by invoking a reactive rotamer featuring two ammonium-boronate hydrogen bonds, which enables phosphate coordination to boron with a concomitant, stereoretentive protonation of the C-B bond. The accessibility and utility of both diastereomers of these α,β-disubstituted β-aminoalkylboronates is exemplified with the functionalization of the amino group, stereospecific oxidation to β-amino alcs. and C-C bond transformations of the secondary alkylboronate, and the preparation of free boronic acids and hemiboronic heterocycles. After reading the article, we found that the author used Bis[(pinacolato)boryl]methane(cas: 78782-17-9Quality Control of Bis[(pinacolato)boryl]methane)

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Lumangtad, Liezel A.’s team published research in Bioorganic & Medicinal Chemistry in 2020 | CAS: 1195-59-1

2,6-Pyridinedimethanol(cas: 1195-59-1) belongs to pyridine. Pyridines are often used as catalysts or reagents; particular notice has been paid recently to how pyridine coordinates to metal centers enabling a wide range of valuable reactions. Recommanded Product: 1195-59-1

《Syntheses and anti-HIV and human cluster of differentiation 4 (CD4) down-modulating potencies of pyridine-fused cyclotriazadisulfonamide (CADA) compounds》 was published in Bioorganic & Medicinal Chemistry in 2020. These research results belong to Lumangtad, Liezel A.; Claeys, Elisa; Hamal, Sunil; Intasiri, Amarawan; Basrai, Courtney; Yen-Pon, Expedite; Beenfeldt, Davison; Vermeire, Kurt; Bell, Thomas W.. Recommanded Product: 1195-59-1 The article mentions the following:

CADA compounds selectively down-modulate human cell-surface CD4 protein and are of interest as HIV entry inhibitors and as drugs for asthma, rheumatoid arthritis, diabetes and some cancers. Postulating that fusing a pyridine ring bearing hydrophobic substituents into the macrocyclic scaffold of CADA compounds may lead to potent compounds with improved properties, 17 macrocycles were synthesized, 14 with 12-membered rings having an isobutylene head group, two arenesulfonyl side arms, and fused pyridine rings bearing a para substituent. The analogs display a wide range of CD4 down-modulating and anti-HIV potencies, including some with greater potency than CADA, proving that a highly basic nitrogen atom in the 12-membered ring is not required for potency and that hydrophobic substituents enhance potency of pyridine-fused CADA compounds Cytotoxicities of the new compounds compared favorably with those of CADA, showing that incorporation of a pyridine ring into the macrocyclic scaffold can produce selective compounds for potently down-modulating proteins of medicinal interest. In the experiment, the researchers used 2,6-Pyridinedimethanol(cas: 1195-59-1Recommanded Product: 1195-59-1)

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

McKay, G’s team published research in Journal of Applied Polymer Science in 1985-11-30 | 6054-98-4

Journal of Applied Polymer Science published new progress about Adsorptive wastewater treatment. 6054-98-4 belongs to class alcohols-buliding-blocks, and the molecular formula is C14H8N2Na2O6, Name: Sodium 5,5′-(diazene-1,2-diyl)bis(2-hydroxybenzoate).

McKay, G.; Blair, H. S.; Gardner, J. G.; McConvey, I. F. published the artcile< Two-resistance mass transfer model for the adsorption of various dyestuffs onto chitin>, Name: Sodium 5,5′-(diazene-1,2-diyl)bis(2-hydroxybenzoate), the main research area is dye adsorption chitin wastewater; mass transfer model chitin dye.

The kinetics of the adsorption of various dyes onto chitin (I) [1398-61-4] were studied. The dyes used are Neoland Blue 2G (II) [6370-08-7], Eriochrome Flavin A (III) [6054-98-4], and Solophenyl Brown 3RL (IV) [6409-83-2] and a number of process variables were considered, such as adsorbent mass and dye concentration The mass transfer model is based on the assumption of a pseudoirreversible isotherm and 2 resistances to mass transfer. These are external mass transfer and internal pore diffusion mass transfer. The rate of adsorption of dyes onto I can be described by an external mass transfer coefficient and a pore diffusion coefficient The external mass transfer coefficients are 5.0 × 10-5, 5.0 × 10-5, and 1.0 × 10-5 m/s and the pore diffusivities are 3.0 × 10-10 and 4.0 × 10-11 m2/s for II, III, and IV, resp.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Zu, Han’s team published research in Chinese Journal of Chemical Engineering in 2020 | 6290-03-5

Chinese Journal of Chemical Engineering published new progress about Concentration (condition). 6290-03-5 belongs to class alcohols-buliding-blocks, and the molecular formula is C4H10O2, Application of C4H10O2.

Zu, Han; Zhang, Hui; Fan, Anwen; Gu, Jie; Nie, Yao; Luo, Pengjie; Xu, Yan published the artcile< Highly efficient synthesis of (R)-1,3-butanediol via anti-Prelog reduction of 4-hydroxy-2-butanone with absolute stereoselectivity by newly isolated Pichia kudriavzevii>, Application of C4H10O2, the main research area is butanediol asym reduction hydroxybutanone stereoselectivity Pichia biosynthesis sequence.

(R)-1,3-butanediol is an important pharmaceutical intermediate, and the synthesis of (R)-1,3-butanediol using green biol. methods has recently been of interest for industrial application. Here, a novel strain QC-1 that efficiently transforms 4-hydroxy-2-butanone to (R)-1,3-butanediol was isolated from soil samples. Based on morphol., physiol., and biochem. tests and 5.8S-internal transcribed spacer sequencing, the strain was identified as Pichia kudriavzevii QC-1. The reaction conditions were optimized to 35°C, pH 8.0, rotation speed 200 rpm, and 6:5 mass ratio of glucose to 4-hydroxy-2-butanone. Evaluation of the effects of 4-hydroxy-2-butanone concentrations on yield and cell survival rate showed that 85.60 g·L-1 product accumulated, with an enantiomeric excess of more than 99%, when 30 g·L-1 4-hydroxy-2-butanone was added at 0, 10, and 30 h in a 3-L bioreactor. Thus, strain QC-1 showed excellent catalytic activity and stereoselectivity for the synthesis of (R)-1,3-butanediol from 4-hydroxy-2-butanone.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Zhang, Leilei’s team published research in Crystal Growth & Design in 2022-04-06 | 6290-03-5

Crystal Growth & Design published new progress about Activation energy. 6290-03-5 belongs to class alcohols-buliding-blocks, and the molecular formula is C4H10O2, Reference of 6290-03-5.

Zhang, Leilei; Xu, Yue; Lou, Boxuan; Qin, Xiaolan; Zhang, Lijuan; Liu, Xijian; Yuan, Haikuan; Zhang, Yan; Rohani, Sohrab; Lu, Jie published the artcile< Effect of Additives on Preferential Crystallization for the Chiral Resolution of Citrulline: Experimental, Statistical, and Molecular Dynamics Simulation Studies>, Reference of 6290-03-5, the main research area is preferential crystallization chiral resolution citrulline.

The molar fraction solubilities of L-, D-, and DL-citrulline were first determined in aqueous solutions with different concentrations of (R)-1,3-butanediol from 283.15 to 328.15 K under 101.3 kPa using the gravimetric method. Then, based on solid-state characterizations such as powder X-ray diffraction (PXRD), Fourier transform IR (FTIR) spectroscopy, thermal gravity anal. (TGA), differential scanning calorimetry (DSC), and ternary phase diagram, the nature of crystalline DL-citrulline was considered to be a racemic compound Then, the rates and parameters of primary nucleation of three species in mixtures of water and (R)-1,3-butanediol were exptl. derived through the classical nucleation theory (CNT). After that, topol. electrostatic potentials and radial distribution functions were analyzed for exploring the intermol. interactions between the mols., and the Yasuoka-Matsumoto (YM) method was employed to simulate the nucleation process. However, the calculated nucleation rates by YM were shown to be 2 orders of magnitude greater than those derived through CNT. Finally, the effect of additives on the appearance probability (P) of racemic and enantiomeric nuclei from the same DL-citrulline solutions at a supersaturation ratio of 2.63 was statistically investigated from 140 nucleation experiments It was interestingly found that there was only a minor difference between the appearance probabilities of both enantiomeric crystals among 20 batches of nucleations in the absence of additives; however, in the presence of additives, enantiomeric crystals with the same chirality as the additives were totally inhibited, which were utilized for the chiral enrichment of the studied racemic system. By coupling the addition of additives and seeds, L-citrulline or D-citrulline crystals with optical purity above 99% can be produced with a yield up to 25.4% through chiral enrichment from an initial ee of 88%.

Crystal Growth & Design published new progress about Activation energy. 6290-03-5 belongs to class alcohols-buliding-blocks, and the molecular formula is C4H10O2, Reference of 6290-03-5.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Dubey, Abhishek’s team published research in ChemCatChem in 2019 | 403-41-8

ChemCatChem published new progress about Alcohols Role: SPN (Synthetic Preparation), PREP (Preparation). 403-41-8 belongs to class alcohols-buliding-blocks, and the molecular formula is C8H9FO, Application In Synthesis of 403-41-8.

Dubey, Abhishek; Rahaman, S. M. Wahidur; Fayzullin, Robert R.; Khusnutdinova, Julia R. published the artcile< Transfer Hydrogenation of Carbonyl Groups, Imines and N-Heterocycles Catalyzed by Simple, Bipyridine-Based MnI Complexes>, Application In Synthesis of 403-41-8, the main research area is bipyridine manganese complex preparation UV visible spectra crystal structure; carbonyl compound bipyridine manganese complex transfer hydrogenation; benzylideneaniline bipyridine manganese complex transfer hydrogenation; azaarene bipyridine manganese complex transfer hydrogenation.

A simple bipyridine-based Mn catalysts were developed that act as active catalysts for transfer hydrogenation of ketones, aldehydes and imines. For the first time, Mn-catalyzed transfer hydrogenation of N-heterocycles was reported. The highest catalytic activity among complexes with variously substituted ligands was observed for the complex bearing two OH groups in bipyridine. Deuterium labeling experiments suggested a monohydride pathway.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Tang, Yun-Zhi’s team published research in Journal of Coordination Chemistry in 2008-04-20 | 6054-98-4

Journal of Coordination Chemistry published new progress about Crystal structure. 6054-98-4 belongs to class alcohols-buliding-blocks, and the molecular formula is C14H8N2Na2O6, Reference of 6054-98-4.

Tang, Yun-Zhi; Tan, Yu-Hui; Chen, Shao-Hu; Chao, Yan-Wen; Wang, Ping published the artcile< Synthesis, characterization and crystal structures of two alkaline-earth metal complexes of olsalazine>, Reference of 6054-98-4, the main research area is olsalazine magnesium calcium aqua polymer complex preparation structure; crystal structure magnesium calcium olsalazine aqua polymer complex.

Two one-dimensional linear coordination polymers, [Mg(L)·4(H2O)] (1, H2L = olsalazine) and [Ca(L)·4(H2O)] (2) were obtained from self-assembly of CaCl2 or MgSO4 with olsalazine and their structures determined by single crystal x-ray diffraction. Both complexes are one-dimensional polymers, with crystal data for complex 1: P2(1)/c, a 9.5224(18), b 11.309(2), c 16.211(3) Å, β 106.648(3)°, V 1672.6(6) Å3, Z = 4, space group R1 = 0.0695, wR2 = 0.2183, for complex 2: space group P4(3)2(1)2, a 10.4006(2), b 10.4006(2), c 32.0746(10) Å, V 3469.59(14) Å3, Z = 8, R1 = 0.0332, wR2 = 0.1015. In the complexes, Mg and Ca adopt totally different coordination modes. Alk.-earth Mg has a six-coordinate octahedral geometry, however, in 2, the local coordination geometry around calcium atom can be best described as a slightly distorted pentagonal bipyramid crystallizing in a homo-chiral space group. Olsalazine in both compounds also adopts dissimilar coordination modes.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Cavallo, Marzia’s team published research in Tetrahedron in 2021-03-12 | 52160-51-7

Tetrahedron published new progress about Aldehydes Role: RCT (Reactant), RACT (Reactant or Reagent). 52160-51-7 belongs to class alcohols-buliding-blocks, and the molecular formula is C6H9NO, Related Products of 52160-51-7.

Cavallo, Marzia; Arnodo, Davide; Mannu, Alberto; Blangetti, Marco; Prandi, Cristina; Baratta, Walter; Baldino, Salvatore published the artcile< Deep eutectic solvents as H2-sources for Ru(II)-catalyzed transfer hydrogenation of carbonyl compounds under mild conditions>, Related Products of 52160-51-7, the main research area is aldehyde ketone transfer hydrogenation ruthenium catalyst deep eutectic solvent.

The employment of easily affordable ruthenium(II)-complexes as pre-catalysts in the transfer hydrogenation of carbonyl compounds in deep eutectic media is described for the first time. The eutectic mixture tetrabutylammonium bromide/formic acid = 1/1 (TBABr/HCOOH = 1/1) acts both as reaction medium and hydrogen source. The addition of a base is required for the process to occur. An extensive optimization of the reaction conditions has been carried out, in terms of catalyst loading, type of complexes, H2-donors, reaction temperature and time. The combination of the dimeric complex [RuCl(p-cymene)-μ-Cl]2 (0.01-0.05 equivalent) and the ligand dppf (1,1′-ferrocenediyl-bis(diphenylphosphine)ferrocene) in 1/1 molar ratio has proven to be a suitable catalytic system for the reduction of several and diverse aldehydes and ketones to their corresponding alcs. under mild conditions (40-60°) in air, showing from moderate to excellent tolerability towards different functional groups (halogen, cyano, nitro, phenol). The reduction of imine compounds to their corresponding amine derivatives was also studied. In addition, the comparison between the results obtained in TBABr/HCOOH and in organic solvents suggests a non-innocent effect of the DES medium during the process.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Ren, Boxu’s team published research in Cancer Letters (New York, NY, United States) in 2021-09-01 | 501-36-0

Cancer Letters (New York, NY, United States) published new progress about Antitumor agents. 501-36-0 belongs to class alcohols-buliding-blocks, and the molecular formula is C14H12O3, Recommanded Product: (E)-5-(4-Hydroxystyryl)benzene-1,3-diol.

Ren, Boxu; Kwah, Marabeth Xin-Yi; Liu, Cuiliu; Ma, Zhaowu; Shanmugam, Muthu K.; Ding, Lingwen; Xiang, Xiaoqiang; Ho, Paul Chi-Lui; Wang, Lingzhi; Ong, Pei Shi; Goh, Boon Cher published the artcile< Resveratrol for cancer therapy: Challenges and future perspectives>, Recommanded Product: (E)-5-(4-Hydroxystyryl)benzene-1,3-diol, the main research area is review cancer resveratrol therapy; Cancer treatment; Pharmacodynamics; Pharmacokinetics; Resveratrol; Toxicity.

A review. Resveratrol (3,4′,5-trihydroxy-trans-stilbene) has been expected to ameliorate cancer and foster breakthroughs in cancer therapy. Despite thousands of preclin. studies on the anticancer activity of resveratrol, little progress has been made in translational research and clin. trials. Most studies have focused on its anticancer effects, cellular mechanisms, and signal transduction pathways in vitro and in vivo. In this review, we aimed to discern the causes that prevent resveratrol from being used in cancer treatment. Among the various limitations, poor pharmacokinetics and low potency seem to be the two main bottlenecks of resveratrol. In addition, resveratrol-induced nephrotoxicity in multiple myeloma patients hinders its further development as an anticancer drug. New insights and strategies have been proposed to accelerate the conversion of resveratrol from bench to bedside. In the interim, the most promising approach is to enhance the bioavailability of resveratrol with new formulations. Alternatively, more potent analogs of resveratrol could be developed to augment its anticancer potency. Given all the gaps mentioned, much work remains to be done. However, if remarkable progress can be made, resveratrol may finally be used for cancer therapy.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts