Month: October 2022

《Ultrasonic accelerated efficient synthesis of aminobenzochromenes using Ag2Cr2O7 nanoparticles as a reusable heterogeneous catalyst》 was published in Journal of Heterocyclic Chemistry in 2020. These research results belong to Ebrahimi, Mitra; Abdolmohammadi, Shahrzad; Kia-Kojoori, Reza. Recommanded Product: 3-Hydroxybenzaldehyde The article mentions the following:

Ag2Cr2O7 nanoparticles were found to be an exceedingly effective catalyst for the mild and green synthesis of aminobenzochromenes I (R = H, 4-Br, 3-Cl, 4-CN, 3-OH, 3-NO2) and II. The reaction was performed under ultrasonic irradiation as an innocuous tool and in water as a green solvent at room temperature This method encompasses several sustainable and economic benefits. In the experiment, the researchers used 3-Hydroxybenzaldehyde(cas: 100-83-4Recommanded Product: 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.Recommanded Product: 3-Hydroxybenzaldehyde

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

《Design, synthesis and evaluation of benzothiazole derivatives as multifunctional agents》 was published in Bioorganic Chemistry in 2020. These research results belong to Djuidje, Ernestine Nicaise; Sciabica, Sabrina; Buzzi, Raissa; Dissette, Valeria; Balzarini, Jan; Liekens, Sandra; Serra, Elena; Andreotti, Elisa; Manfredini, Stefano; Vertuani, Silvia; Baldisserotto, Anna. Recommanded Product: 3,5-Dihydroxybenzaldehyde The article mentions the following:

Oxidative stress is the product or etiol. of various multifactorial diseases; on the other hand, the development of multifunctional compounds is a recognized strategy for the control of complex diseases. A series of benzothiazole derivatives I (R = H, COOH, SO2NH2; R1 = Ph, 2-hydroxyphenyl, 3,4-dihydroxyphenyl, etc.) was synthesized and evaluated for their multifunctional effectiveness as antioxidant, sunscreen (filter), antifungal and antiproliferative agents. Compounds were easily synthesized via condensation reaction between 2-aminothiophenol and different benzaldehydes R1CHO. SAR study, particularly in position 2 and 6 of benzothiazoles, led to the identification of I (R = H, R1 = 2,5-dihydroxyphenyl (A); R = H, R1 = 2,4,5-trihydroxyphenyl) as very interesting potential compounds for the design of multifunctional drugs. In particular, compound (A) is the best blocker of hERG potassium channels expressed in HEK 293 cells exhibiting 60.32% inhibition with IC50 = 4.79μM. In the experimental materials used by the author, we found 3,5-Dihydroxybenzaldehyde(cas: 26153-38-8Recommanded Product: 3,5-Dihydroxybenzaldehyde)

3,5-Dihydroxybenzaldehyde(cas: 26153-38-8) is used as a building block in the synthesis of more complex structures. It is also used in the synthesis of terbutaline, which is an important bronchodilator.Recommanded Product: 3,5-Dihydroxybenzaldehyde

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

《Chelation Crosslinking of Biodegradable Elastomers》 was published in Advanced Materials (Weinheim, Germany) in 2020. These research results belong to Chen, Ying; Miller, Paula G.; Ding, Xiaochu; Stowell, Chelsea E. T.; Kelly, Katie M.; Wang, Yadong. Safety of 2-Aminopropane-1,3-diol The article mentions the following:

Widely present in nature and in manufactured goods, elastomers are network polymers typically crosslinked by strong covalent bonds. Elastomers crosslinked by weak bonds usually exhibit more plastic deformation. Here, chelation as a mechanism to produce biodegradable elastomers is reported. Polycondensation of sebacic acid, 1,3-propanediol, and a Schiff-base (2-[[(2-hydroxyphenyl) methylene]amino]-1,3-propanediol) forms a block copolymer that binds several biol. relevant metal ions. Chelation offers a unique advantage unseen in conventional elastomer design because one ligand binds multiple metal ions, yielding bonds of different strengths. Therefore, one polymeric ligand coordinated with different metal ions produces elastomers with vastly different characteristics. Mixing different metal ions in one polymer offers another degree of control on material properties. The d. of the ligands in the block copolymer further regulates the mech. properties. Moreover, a murine model reveals that Fe3+ crosslinked foam displays higher compatibility with s.c. tissues than the widely used biomaterial-polycaprolactone. The implantation sites restore to their normal architecture with little fibrosis upon degradation of the implants. The versatility of chelation-based design has already shown promise in hydrogels and highly stretchy nondegradable polymers. The biodegradable elastomers reported here would enable new materials and new possibilities in biomedicine and beyond. In the experimental materials used by the author, we found 2-Aminopropane-1,3-diol(cas: 534-03-2Safety of 2-Aminopropane-1,3-diol)

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.Safety of 2-Aminopropane-1,3-diol

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

《Copper-immobilized ionic liquid as an alternative to organic solvents in the one-pot synthesis of bioactive dihydropyrano[2,3-c]pyrazole derivatives》 was published in Applied Organometallic Chemistry in 2020. These research results belong to Ghafuri, Hossein; Kazemnezhad Leili, Maede; Esmaili Zand, Hamid Reza. Category: alcohols-buliding-blocks The article mentions the following:

In this study, a novel Cu-immobilized ionic liquid (IL) I · 3Cu(OAc)3- 3(H2O)was designed, characterized, and employed as both promoter and solvent in the synthesis of some dihydropyrano[2,3-c]pyrazoles II (R = C6H5, 2,4-(Cl)2C6H3, (CH2)2CH3, etc.; R1 = H, 4-O2NC6H4). The synthesized ionic liquid I · 3Cu(OAc)3- 3(H2O) was characterized by 1H NMR, 13C NMR, FTIR, ICP and EDX anal. and showed high catalytic activity to proceed the synthesis of bioactive dihydropyrano[2,3-c]pyrazole derivatives II. This method has the advantage of using the IL as a green medium for the synthesis of the products in high to excellent yields within short reaction times.3-Hydroxybenzaldehyde(cas: 100-83-4Category: alcohols-buliding-blocks) was used in this study.

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

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

《Systematics of positron lifetime spectroscopy measurements in ferroelectrics》 was written by Peneva, S.; Troev, T.; Kolev, B.. Quality Control of Potassium sodium (2R,3R)-2,3-dihydroxysuccinate tetrahydrate And the article was included in Journal of Physics: Conference Series in 2020. The article conveys some information:

In the paper is demonstrated the use of positron lifetime spectroscopy (PLS) in a comparative study of the results in ferroelecs. The first part is devoted to the application of PLS as a probe for measurements of ferroelecs. In Triglycine Sulfate (TGS) (NH3CH2COOH)3H2SO4, Rochelle Salt (RS) NaKC4H4O64H2O and Potassium Dihydrogen Phosphate (KDP) KH2PO4; at different temperatures and gamma irradiation doses is established the existence of three positron lifetime components. This exptl. results show that the second long lifetime component as a function of temperature in order-disorder ferroelecs. TGS, RS and KDP is due to the positron trapping in neg. charge defects of ferroelec. The positron spectroscopy method is effective for measurements of extremely small defects and voids, which is important for the next exploitation period of the ferroelecs. PLS measurements of ferroelecs. show that about the third lifetime component is due to the local formation of orhto-positronium state on the boundary between the domains. In the second part the PLS anal. has been applied for examination the electronic and defect structure in selected ferroelecs. materials. In gamma irradiated TGS positrons are trapped in the defect states of the oxygen ions of the two radicals CH2COO- and NH3CHCOO-. In RS positrons are trapped also in the defect states of the oxygen ions and OH groups.Potassium sodium (2R,3R)-2,3-dihydroxysuccinate tetrahydrate(cas: 6381-59-5Quality Control of Potassium sodium (2R,3R)-2,3-dihydroxysuccinate tetrahydrate) was used in this study.

Potassium sodium (2R,3R)-2,3-dihydroxysuccinate tetrahydrate(cas: 6381-59-5) is a ferroelectric crystal with a high piezoelectric effect and electromechanical coupling coefficient. Quality Control of Potassium sodium (2R,3R)-2,3-dihydroxysuccinate tetrahydrate It may be used as a constituent to prepare DNS (3,5- dinitrosalicylic acid) reagent and Fehling′s solution B, which are used in the determination of reducing sugar.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

《Helical supramolecular polymers with rationally designed binding sites for chiral guest recognition》 was written by Salikolimi, Krishnachary; Praveen, Vakayil K.; Sudhakar, Achalkumar Ammathnadu; Yamada, Kuniyo; Horimoto, Noriko Nishizawa; Ishida, Yasuhiro. Computed Properties of C9H11NO And the article was included in Nature Communications in 2020. The article conveys some information:

Since various helical supramol. polymers became available, their application to mol. chirality recognition have been anticipated but not extensively studied. So far, only a few examples of chiral reactions have been reported, but none for chiral separation Here, we report the application of a helical supramol. polymer to the enantio-separation of chiral guest mols. The monomer of this supramol. polymer is the salt-pair of a dendritic carboxylic acid with an enantiopure amino alc. In an apolar solvent, this salt-pair stacks via hydrogen bonds to form a helical polymer. In conjunction with this carboxylic acid, various amino alcs. afford supramol. polymers, whose helical handedness is determined by the stereochem. of the amino alcs. When two salts with the same chirality are mixed, they undergo copolymerization, while those with opposite chirality do not. Owing to this stereoselective copolymerizability, the helical supramol. polymer could bias the enantiomeric composition of chiral amino alcs. The experimental part of the paper was very detailed, including the reaction process of (1S,2R)-1-Amino-2,3-dihydro-1H-inden-2-ol(cas: 126456-43-7Computed Properties of C9H11NO)

(1S,2R)-1-Amino-2,3-dihydro-1H-inden-2-ol(cas: 126456-43-7) belongs to anime. The reaction of alkyl halides, R―X, where X is a halogen, or analogous reagents with ammonia (or amines) is useful with certain compounds. Not all alkyl halides are effective reagents; the reaction is sluggish with secondary alkyl groups and fails with tertiary ones. Its usefulness is largely confined to primary alkyl halides (those having two hydrogen atoms on the reacting site).Computed Properties of C9H11NO

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

《Selectivity and Physicochemical Optimization of Repurposed Pyrazolo[1,5-b]pyridazines for the Treatment of Human African Trypanosomiasis》 was written by Tear, Westley F.; Bag, Seema; Diaz-Gonzalez, Rosario; Ceballos-Perez, Gloria; Rojas-Barros, Domingo I.; Cordon-Obras, Carlos; Perez-Moreno, Guiomar; Garcia-Hernandez, Raquel; Martinez-Martinez, Maria Santos; Ruiz-Perez, Luis Miguel; Gamarro, Francisco; Gonzalez Pacanowska, Dolores; Caffrey, Conor R.; Ferrins, Lori; Manzano, Pilar; Navarro, Miguel; Pollastri, Michael P.. HPLC of Formula: 27489-62-9 And the article was included in Journal of Medicinal Chemistry in 2020. The article conveys some information:

From a high-throughput screen of 42 444 known human kinases inhibitors, a pyrazolo[1,5-b]pyridazine scaffold was identified to begin optimization for the treatment of human African trypanosomiasis. Previously reported data for analogous compounds against human kinases GSK-3β, CDK-2, and CDK-4 were leveraged to try to improve the selectivity of the series, resulting in 23a which showed selectivity for T. b. brucei over these three human enzymes. In parallel, properties known to influence the absorption, distribution, metabolism, and excretion (ADME) profile of the series were optimized resulting in 20g being progressed into an efficacy study in mice. Though 20g showed toxicity in mice, it also demonstrated CNS penetration in a PK study and significant reduction of parasitemia in four out of the six mice. The experimental process involved the reaction of trans-4-Aminocyclohexanol(cas: 27489-62-9HPLC of Formula: 27489-62-9)

trans-4-Aminocyclohexanol(cas: 27489-62-9) belongs to anime. Aniline, ethanolamines, and several other amines are major industrial commodities used in making rubber, dyes, pharmaceuticals, and synthetic resins and fibres and for a host of other applications. Most of the numerous methods for the preparation of amines may be broadly divided into two groups: (1) chemical reduction (replacement of oxygen with hydrogen atoms in the molecule) of members of several other classes of organic nitrogen compounds and (2) reactions of ammonia or amines with organic compounds.HPLC of Formula: 27489-62-9

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

《Discovery of a Covalent Inhibitor of KRASG12C (AMG 510) for the Treatment of Solid Tumors》 was written by Lanman, Brian A.; Allen, Jennifer R.; Allen, John G.; Amegadzie, Albert K.; Ashton, Kate S.; Booker, Shon K.; Chen, Jian Jeffrey; Chen, Ning; Frohn, Michael J.; Goodman, Guy; Kopecky, David J.; Liu, Longbin; Lopez, Patricia; Low, Jonathan D.; Ma, Vu; Minatti, Ana E.; Nguyen, Thomas T.; Nishimura, Nobuko; Pickrell, Alexander J.; Reed, Anthony B.; Shin, Youngsook; Siegmund, Aaron C.; Tamayo, Nuria A.; Tegley, Christopher M.; Walton, Mary C.; Wang, Hui-Ling; Wurz, Ryan P.; Xue, May; Yang, Kevin C.; Achanta, Pragathi; Bartberger, Michael D.; Canon, Jude; Hollis, L. Steven; McCarter, John D.; Mohr, Christopher; Rex, Karen; Saiki, Anne Y.; San Miguel, Tisha; Volak, Laurie P.; Wang, Kevin H.; Whittington, Douglas A.; Zech, Stephan G.; Lipford, J. Russell; Cee, Victor J.. HPLC of Formula: 89466-08-0 And the article was included in Journal of Medicinal Chemistry in 2020. The article conveys some information:

KRASG12C has emerged as a promising target in the treatment of solid tumors. Covalent inhibitors targeting the mutant cysteine-12 residue have been shown to disrupt signaling by this long-“”undruggable”” target; however clin. viable inhibitors have yet to be identified. Here, we report efforts to exploit a cryptic pocket (H95/Y96/Q99) we identified in KRASG12C to identify inhibitors suitable for clin. development. Structure-based design efforts leading to the identification of a novel quinazolinone scaffold are described, along with optimization efforts that overcame a configurational stability issue arising from restricted rotation about an axially chiral biaryl bond. Biopharmaceutical optimization of the resulting leads culminated in the identification of AMG 510, a highly potent, selective, and well-tolerated KRASG12C inhibitor currently in phase I clin. trials (NCT03600883). The experimental part of the paper was very detailed, including the reaction process of 2-Hydroxyphenylboronic acid(cas: 89466-08-0HPLC of Formula: 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. HPLC of Formula: 89466-08-0

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

《Experimental and predicted physicochemical properties of monopropanolamine-based deep eutectic solvents》 was written by Nowosielski, Bartosz; Jamrogiewicz, Marzena; Luczak, Justyna; Smiechowski, Maciej; Warminska, Dorota. Electric Literature of C3H9NO And the article was included in Journal of Molecular Liquids in 2020. The article conveys some information:

In this work, the novel deep eutectic solvents (DESs) based on 3-amino-1-propanol (AP) as hydrogen bond donor (HBD) and tetrabutylammonium bromide (TBAB) or tetrabutylammonium chloride (TBAC) or tetraethylammonium chloride (TEAC) as hydrogen bond acceptors (HBAs) were synthesized with different molar ratios of 1: 4, 1: 6 and 1: 8 salt to AP. Fourier Transform IR Spectroscopy measurements were performed to provide an evidence of any chem. structure changes. Phys. properties of the prepared DESs including densities, viscosities, refractive indexes and sound velocities were measured within the temperature range of 293.15-333.15 K at the pressure of 0.1 MPa. They were analyzed in terms of estimating the effect of HBA to HBD molar ratio, anion and length of alkyl chain in a salt, and their temperature dependences were fitted by empirical equations. Thermal expansion coefficients and activation energies for viscous flow were obtained accordingly. Moreover, exptl. values of d. and refractive index were compared with predicted ones. For prediction of d., Rackett equation modified by Spencer and Danner and the mass connectivity index-based method were used, while refractive index was estimated by the at. contribution method.3-Aminopropan-1-ol(cas: 156-87-6Electric Literature of C3H9NO) was used in this study.

3-Aminopropan-1-ol(cas: 156-87-6) 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.Electric Literature of C3H9NO

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

《Nitrile N-oxide-terminated poly(γ-benzyl L-glutamate) (PBLG): synthesis and catalyst-free grafting onto polybutadiene (PBD) and natural rubber (NR)》 was written by Sogawa, Hiromitsu; Takamatsu, Shohei; Tsutsuba, Toyokazu; Takata, Toshikazu. Related Products of 4048-33-3 And the article was included in Polymer Journal (Tokyo, Japan) in 2020. The article conveys some information:

A nitrile N-oxide-functionalized polypeptide was synthesized by a two-step method involving the combination of ring-opening polymerization of an α-amino acid N-carboxyanhydride monomer using a primary amine initiator containing a nitroalkane group and a subsequent terminal conversion. The catalyst-free grafting reaction of the formed functionalized peptide with rubbers containing double bonds was achieved with high efficiency.6-Aminohexan-1-ol(cas: 4048-33-3Related Products of 4048-33-3) was used in this study.

6-Aminohexan-1-ol(cas: 4048-33-3) can undergo cyclization over copper supported on γ-alumina and magnesia to form hexahydro-1H-azepine. It may be used along with glutaric acid to generate poly(ester amide)s with excellent film- and fiber forming properties.Related Products of 4048-33-3

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts