Month: November 2022

Synthesis and characterization of II-VI (CdSe) quantum dot encapsulated liposomes was written by Douda, J.;Miranda Calderon, L. G.;Kryshtab, T.;Arias Ceron, J. S.;Kryvko, A.. And the article was included in Journal of Materials Science: Materials in Electronics in 2018.Reference of 923-61-5 The following contents are mentioned in the article:

The semiconductor CdSe quantum dots (QDs) with emission spectra of different wavelengths were synthesized by using a modified method of simultaneous injection at heating. The obtained QDs were encapsulated into liposomes prepared by a method of lipid film hydration and sonication from various phospholipid compositions and polyethylene glycol (PEG) addition The synthesized and encapsulated in the liposomes QDs were characterized by photoluminescence (PL), X-Ray diffraction (XRD), Transmission electron microscopy, and Dynamic light scattering. The evaluation of PL spectra of the obtained QDs showed that they had sizes in the range of 2.3-4.5 nm. XRD patterns revealed only one peak for CdSe cubic crystal structure and the estimated crystal sizes were about the same values that the obtained from PL results. After the encapsulation a blue shift of PL peak position was observed The mechanism of the effect is discussed. This study involved multiple reactions and reactants, such as (2R)-3-(((2-Aminoethoxy)(hydroxy)phosphoryl)oxy)propane-1,2-diyl dipalmitate (cas: 923-61-5Reference of 923-61-5).

(2R)-3-(((2-Aminoethoxy)(hydroxy)phosphoryl)oxy)propane-1,2-diyl dipalmitate (cas: 923-61-5) belongs to alcohols. Alcohols are weak acids. The most acidic simple alcohols (methanol and ethanol) are about as acidic as water, and most other alcohols are somewhat less acidic. Tertiary alcohols cannot be oxidized at all without breaking carbon-carbon bonds, whereas primary alcohols can be oxidized to aldehydes or further oxidized to carboxylic acids.Reference of 923-61-5

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Study on the synthesis of polyester type waterborne polyurethane and modifying by nano-sized particles was written by Chen, Yi;Liu, Wenyong;Zeng, Guangsheng;Li, Xiang Gang;Gu, Ling. And the article was included in Applied Mechanics and Materials in 2012.Quality Control of 2-Butyl-2-ethylpropane-1,3-diol The following contents are mentioned in the article:

The waterborne polyurethane was prepared by reaction between polyester polyol and isophorone diisocyanate, different nanoparticles were filled into the system for modification. The effect of different ratio of materials, the kinds and mass of nanoparticles on the characters of waterborne polyurethane latex and film were investigated. The results showed that the stable polyurethane latex and polyurethane film with perfect characters could be prepared when the ratio of N_NCO/N_OH was 2.5∼3.0, the DMPA with a mass fraction of 5%∼6% was added into reaction as a macromol. extender after adding small mol. chain extender BPO. Filling nanoparticles into the polyurethane latex could improve the water resistance and mech. characters of the film. Nano-sized SiO₂ was a better modifier than TiO₂, and the appropriate mass fraction of SiO₂ was 6% of polyurethane raw materials. This study involved multiple reactions and reactants, such as 2-Butyl-2-ethylpropane-1,3-diol (cas: 115-84-4Quality Control of 2-Butyl-2-ethylpropane-1,3-diol).

2-Butyl-2-ethylpropane-1,3-diol (cas: 115-84-4) belongs to alcohols. Similar to water, an alcohol can be pictured as having an sp3 hybridized tetrahedral oxygen atom with nonbonding pairs of electrons occupying two of the four sp3 hybrid orbitals. Tertiary alcohols cannot be oxidized at all without breaking carbon-carbon bonds, whereas primary alcohols can be oxidized to aldehydes or further oxidized to carboxylic acids.Quality Control of 2-Butyl-2-ethylpropane-1,3-diol

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Composition of the Field Scabious (Knautia arvensis L.) was written by Kopyt’ko, Ya. F.;Dargaeva, T. D.;Rendyuk, T. D.. And the article was included in Pharmaceutical Chemistry Journal in 2020.Related Products of 106-21-8 The following contents are mentioned in the article:

TLC anal. of Knautia arvensis demonstrated phenolcarboxylic acids and flavonoids. Spectrophotometric studies were run to assess the quant. composition of phenolic compounds expressed as chlorogenic acid (from 1.05% to 2.08%), and it was proposed that this substance can be used for standardization of samples of Knautia arvensis herb. HPLC-UV identified the presence of o-coumaric, gallic, neochlorogenic, chlorogenic, caffeic, isoferulic, and rosmarinic acids, as well as hyperoside and kaempferol. Chlorogenic acid was present in the greatest quantity (0.29 – 0.60%). GLC-MS showed that hexane extracts contained 92 substances, including a-linoleic acid, Et esters of palmitic, palmitoleic, 13-methyltetradecanoic, and phenylacetic acids, phytol, diethylacetal isovaleraldehyde, hexahydrofarnesyl acetone, diethoxyethane, 14-methyl-8-hexadecenal, succinic acid di-Et ester, dihydrocitronellol, phenylacetaldehyde, and others. This study involved multiple reactions and reactants, such as 3,7-Dimethyloctan-1-ol (cas: 106-21-8Related Products of 106-21-8).

3,7-Dimethyloctan-1-ol (cas: 106-21-8) belongs to alcohols. Under appropriate conditions, inorganic acids also react with alcohols to form esters. To form these esters, a wide variety of specialized reagents and conditions can be used. Grignard and organolithium reagents are powerful tools for organic synthesis, and the most common products of their reactions are alcohols.Related Products of 106-21-8

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Polyorthoesters for low-VOC coatings was written by Isaka, Hisashi;Yonehara, Yoichi. And the article was included in Journal of Coatings Technology in 2003.Synthetic Route of C9H20O2 The following contents are mentioned in the article:

A series of new oligomeric polyorthoesters for low-VOC coatings was prepared by protecting OH groups with orthoester compounds to achieve both low viscosity and excellent compatibility with crosslinking agents. These new oligomeric polyorthoesters were synthesized through a co-condensation reaction among polyol, orthoester, and α- or β-glycol compounds under an acidic condition. Here, the α- or β-glycol compounds were used as stoppers to prevent excessive polymerization The polyorthoesters can easily be hydrolyzed with atm. moisture, and the produced OH groups can react with appropriate crosslinking agents. It is unique in this system that even the stoppers, α- or β-glycol compounds, can react with the crosslinking agents to achieve an extremely low VOC emission. The polyorthoesters cured with polyisocyanate compounds proved to be highly crosslinked polymers showing excellent mech. properties, chem. resistance, etc. This study involved multiple reactions and reactants, such as 2-Butyl-2-ethylpropane-1,3-diol (cas: 115-84-4Synthetic Route of C9H20O2).

2-Butyl-2-ethylpropane-1,3-diol (cas: 115-84-4) belongs to alcohols. Alkyl halides are often synthesized from alcohols, in effect substituting a halogen atom for the hydroxyl group. Tertiary alcohols cannot be oxidized at all without breaking carbon-carbon bonds, whereas primary alcohols can be oxidized to aldehydes or further oxidized to carboxylic acids.Synthetic Route of C9H20O2

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Immobilized Lipid Affinity Capture for Antimicrobial Peptides Screening was written by Joo, Hwang-Soo. And the article was included in Biotechnology and Bioprocess Engineering in 2018.Category: alcohols-buliding-blocks The following contents are mentioned in the article:

A novel method for rapid screening of antimicrobial peptides (AMPs) was developed by using immobilized lipid affinity capture (ILAC) coupled with LC-MS. Phospholipid (PL) mixture containing phosphatidyl glycerol (PG): phosphatidyl ethanolamine (PE) (4:1), roughly mimic the PL composition of Gram-pos. bacterial membrane, was covalently immobilized on magnetic particles (MPs). PL monolayer immobilized on MPs was used as a matrix for capturing of the membrane-disruptive AMPs. Hominicin, a new AMP against Gram-pos. bacteria, was successfully captured by ILAC from the peptide pool of Staphylococcus hominis MBBL 2-9. The hominicin was identified by the comparative anal. of LC-MS 2Dprofiles of peptides captured by bare and PL-immobilized MPs. This is the first report for the development of rapid AMP screening method using lipid-immobilized MPs and LC-MS which will be a promising tool for discovery of various kinds of AMPs. This study involved multiple reactions and reactants, such as (2R)-3-(((2-Aminoethoxy)(hydroxy)phosphoryl)oxy)propane-1,2-diyl dipalmitate (cas: 923-61-5Category: alcohols-buliding-blocks).

(2R)-3-(((2-Aminoethoxy)(hydroxy)phosphoryl)oxy)propane-1,2-diyl dipalmitate (cas: 923-61-5) belongs to alcohols. A strong base can deprotonate an alcohol to yield an alkoxide ion (R―O−). For example, sodamide (NaNH2), a very strong base, abstracts the hydrogen atom of an alcohol. Tertiary alcohols cannot be oxidized at all without breaking carbon-carbon bonds, whereas primary alcohols can be oxidized to aldehydes or further oxidized to carboxylic acids.Category: alcohols-buliding-blocks

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Construction of Optically Active Quaternary Propargyl Amines by Highly Enantioselective Zinc/BINOL-Catalyzed Alkynylation of Ketoimines was written by Huang, Gaochao;Yin, Zengsheng;Zhang, Xingang. And the article was included in Chemistry – A European Journal in 2013.Application In Synthesis of (R)-[1,3′:1′,1”:3”,1”’-Quaternaphthalene]-2′,2”-diol The following contents are mentioned in the article:

A general and efficient method for the highly enantioselective alkynylation of ketoimines through a zinc/1,1′-bi-2-naphthol (BINOL)-catalyzed process has been developed. A variety of ketoimines, including α-fluoroalkyl α-imine esters, α-aryl α-imine esters, and trifluoromethyl aryl ketoimines, are applicable and provide their corresponding quaternary propargyl amines in excellent yields with high ee values (up to 99 % ee). Both the steric and electronic effects of substituents at the 3,3′ positions of BINOL are critical for the reaction efficiency and enantioselectivity. To demonstrate the usefulness of the method, (R)-α-CF₃ α-proline has been prepared in a highly efficient manner. The notable features of this protocol are its broad substrate scope, high reaction efficiency (up to 99 %) and enantioselectivity (up to 99 % ee), low catalyst loading (5 mol % of BINOL derivative), and mild reaction conditions. This study involved multiple reactions and reactants, such as (R)-[1,3′:1′,1”:3”,1”’-Quaternaphthalene]-2′,2”-diol (cas: 851615-07-1Application In Synthesis of (R)-[1,3′:1′,1”:3”,1”’-Quaternaphthalene]-2′,2”-diol).

(R)-[1,3′:1′,1”:3”,1”’-Quaternaphthalene]-2′,2”-diol (cas: 851615-07-1) belongs to alcohols. A strong base can deprotonate an alcohol to yield an alkoxide ion (R―O−). For example, sodamide (NaNH2), a very strong base, abstracts the hydrogen atom of an alcohol. Under carefully controlled conditions, simple alcohols can undergo intermolecular dehydration to give ethers. This reaction is effective only with methanol, ethanol, and other simple primary alcohols.Application In Synthesis of (R)-[1,3′:1′,1”:3”,1”’-Quaternaphthalene]-2′,2”-diol

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Experimental Evidence of the Existence of Interleaflet Coupled Nanodomains: An MC-FRET Study was written by Vinklarek, Ivo S.;Vel’as, Lukas;Riegerova, Petra;Skala, Kristian;Mikhalyov, Ilya;Gretskaya, Natalia;Hof, Martin;Sachl, Radek. And the article was included in Journal of Physical Chemistry Letters in 2019.Electric Literature of C37H74NO8P The following contents are mentioned in the article:

Plasma membranes of living cells are compartmentalized into small submicroscopic structures (nanodomains) having potentially relevant biol. functions. Despite this, structural features of these nanodomains remain elusive, primarily due to the difficulties in characterizing such small dynamic entities. It is unclear whether nanodomains found in the upper bilayer leaflet are transversally registered with those found in the lower leaflet. Experiments performed on larger microscopic domains indicate that the coupling between the leaflets is strong, forcing the domains to be in perfect registration, but can the same thing be said about the biol. more relevant nanodomains. This work provides exptl. evidence that even small nanodomains of variable sizes between 10 and 160 nm are interleaflet coupled. Importantly, the alternative scenarios of partially registered, independent, or antiregistered nanodomains could be excluded. This study involved multiple reactions and reactants, such as (2R)-3-(((2-Aminoethoxy)(hydroxy)phosphoryl)oxy)propane-1,2-diyl dipalmitate (cas: 923-61-5Electric Literature of C37H74NO8P).

(2R)-3-(((2-Aminoethoxy)(hydroxy)phosphoryl)oxy)propane-1,2-diyl dipalmitate (cas: 923-61-5) belongs to alcohols. Alcohols are among the most common organic compounds. They are used as sweeteners and in making perfumes, are valuable intermediates in the synthesis of other compounds, and are among the most abundantly produced organic chemicals in industry. Secondary alcohols are easily oxidized without breaking carbon-carbon bonds only as far as the ketone stage. No further oxidation is seen except under very stringent conditions.Electric Literature of C37H74NO8P

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Preparation and characterization of pyridoxal hydrazide modified novel luminescent metal-organic frameworks was written by Zhao, Xiuyang;Liu, Xuefeng;Wu, Xin;Jiao, Yuan;Jia, Wanxin;Dong, Chuan. And the article was included in Shanxi Daxue Xuebao, Ziran Kexueban in 2017.Reference of 65-22-5 The following contents are mentioned in the article:

The metal-organic frameworks (MOFs) of zeolitic imidazolate framework-8 (ZIF-8) were assembled by hydrothermal method, and a novel luminescent MOFs was prepared by modifying luminescent organic mol. of pyridoxal hydrazide (PAH) which could recognize Cu²⁺ selectively on the surface and pore of ZIF-8. The morphol. and structure of as-prepared PAH/ZIF-8 composites were characterized by NMR (¹H CNR, ¹³C NMR), Fourier transform IR spectroscopy (FT-IR), X-ray powder diffraction (XRD) and scanning electron microscope (SEM). The average diameter of the spherical PAH/ZIF-8 was 82 nm and it had fluorescence emission at 473 nm under the excitation of 354 nm, in addition, The fluorescence of PAH could be quenched in the presence of Cu²⁺ based on the coordinative complex formation between PAH and Cu²⁺, so the PAH/ZIF-8 will be a potential candidate for Cu²⁺ sensing. This study involved multiple reactions and reactants, such as 3-Hydroxy-5-(hydroxymethyl)-2-methylisonicotinaldehyde hydrochloride (cas: 65-22-5Reference of 65-22-5).

3-Hydroxy-5-(hydroxymethyl)-2-methylisonicotinaldehyde hydrochloride (cas: 65-22-5) belongs to alcohols. Under appropriate conditions, inorganic acids also react with alcohols to form esters. To form these esters, a wide variety of specialized reagents and conditions can be used. Tertiary alcohols cannot be oxidized at all without breaking carbon-carbon bonds, whereas primary alcohols can be oxidized to aldehydes or further oxidized to carboxylic acids.Reference of 65-22-5

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Polyorthoesters for low-VOC coatings was written by Isaka, Hisashi;Yonehara, Yoichi. And the article was included in Proceedings of the Annual Meeting Technical Program of the FSCT in 2001.Name: 2-Butyl-2-ethylpropane-1,3-diol The following contents are mentioned in the article:

A series of new oligomeric polyorthoesters for low-VOC coatings was prepared by protecting OH groups with orthoester compounds to achieve both low viscosity and excellent compatibility with crosslinking agents. These new oligomeric polyorthoesters were synthesized through co-condensation reaction among polyol, orthoester, and α or β – glycol compounds under an acidic condition. Here, the α or β- glycol compounds were used as stoppers to prevent excessive polymerization The polyorthoesters can easily be hydrolyzed with atm. moisture, and the reproduced OH groups can react with appropriate crosslinking agents. It is unique in this system that even the stoppers, α or β – glycol compounds, can react with the crosslinking agents to achieve an extremely low VOC emission. The polyorthoesters cured with polyisocyanate compounds proved to be highly cross-linked polymers showing excellent mech. properties, chem. resistance, etc. This study involved multiple reactions and reactants, such as 2-Butyl-2-ethylpropane-1,3-diol (cas: 115-84-4Name: 2-Butyl-2-ethylpropane-1,3-diol).

2-Butyl-2-ethylpropane-1,3-diol (cas: 115-84-4) belongs to alcohols. Under appropriate conditions, inorganic acids also react with alcohols to form esters. To form these esters, a wide variety of specialized reagents and conditions can be used. Alcohols may be oxidized to give ketones, aldehydes, and carboxylic acids. These functional groups are useful for further reactions. Oxidation of organic compounds generally increases the number of bonds from carbon to oxygen (or another electronegative element, such as a halogen), and it may decrease the number of bonds to hydrogen.Name: 2-Butyl-2-ethylpropane-1,3-diol

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

On the nitroxide mediated polymerization of methacrylates derived from bio-sourced terpenes in miniemulsion, a step towards sustainable products was written by Noppalit, Sayrung;Simula, Alexandre;Billon, Laurent;Asua, Jose M.. And the article was included in Polymer Chemistry in 2020.Formula: C10H22O The following contents are mentioned in the article:

The incorporation of monomers derived from natural resources into industrially viable block copolymers is a long-standing problem that has not been appropriately solved yet due to a combination of issues that include the use of toxic solvents, relatively expensive control agents, and the need of intermediate purification steps. This study aims at overcoming these limitations. Nitroxide mediated polymerization of methacrylates synthesized from bio-resourced terpenes is carried out in miniemulsion using Dispolreg 007, an alkoxyamine that is produced through a cost effective and easily scalable synthetic route. Well-defined poly(tetrahydrogeraniol methacrylate)-b-poly(cyclademol methacrylate) diblock copolymers are obtained at high monomer conversions (>90%), without the need for intermediate purification steps. The resulting “soft”/”hard” diblock copolymers show good potential as waterborne pressure-sensitive adhesives. This study involved multiple reactions and reactants, such as 3,7-Dimethyloctan-1-ol (cas: 106-21-8Formula: C10H22O).

3,7-Dimethyloctan-1-ol (cas: 106-21-8) belongs to alcohols. The oxygen atom of the strongly polarized O―H bond of an alcohol pulls electron density away from the hydrogen atom. This polarized hydrogen, which bears a partial positive charge, can form a hydrogen bond with a pair of nonbonding electrons on another oxygen atom. The most common reactions of alcohols can be classified as oxidation, dehydration, substitution, esterification, and reactions of alkoxides.Formula: C10H22O

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts