Category: alcohols-buliding-blocks

Lawan, Kunlayakorn published the artcileAntimicrobial efficacy of caprylyl glycol and ethylhexylglycerine in emulsion, Related Products of alcohols-buliding-blocks, the publication is Journal of Health Research (2009), 23(1), 1-3, database is CAplus.

Antimicrobial efficacies of caprylyl glycol and ethylhexylglycerin in an emulsion were evaluated by USP24-NF19. The min. concentration of caprylyl glycol and ethylhexylglycerin inhibited Staphylococcus aureus, Escherichia coli, Pseudomonas aeruginosa and Candida albicans within 1 day and Aspergillus niger within 28 days was 0.5% and 1.5%, resp. The 1:3 mixture ratio of the caprylyl glycol and ethylhexylglycerin was chosen for further steps on inhibitory effect towards those prohibited microbial in cosmetics by evaluation at the concentration of 0.5%, 1.0%, 1.5% and 2.0%, resp. It was found that the min. concentration inhibited S. aureus within 3 days, E. coli, P. aeruginosa and C. albicans within 1 day and A. niger within 28 days was 1.0%. This developed preservative system offers multifunctional cosmetic ingredients in addition to their emollient efficacies.

Journal of Health Research published new progress about 70445-33-9. 70445-33-9 belongs to alcohols-buliding-blocks, auxiliary class Aliphatic Chain, name is 3-((2-Ethylhexyl)oxy)propane-1,2-diol, and the molecular formula is C11H24O3, Related Products of alcohols-buliding-blocks.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Lansdown, Kate published the artcileInvestigations into the stable isotope ratios of 1-phenyl-2-propanone, Recommanded Product: 2-Hydroxy-2-phenylacetic acid, the publication is Drug Testing and Analysis (2022), 14(3), 496-504, database is CAplus and MEDLINE.

Stable isotope ratio mass spectrometry (IRMS) can be used to determine the precursor and precursor origin of methylamphetamine drug samples. Previous work has shown that methylamphetamine samples can be distinguished as derived from different sources of (pseudo)ephedrine or phenyl-2-propanone (P2P) through the use of IRMS alongside conventional chem. profiling techniques. To date, limited research has been conducted to investigate whether methylamphetamine samples of differing P2P origins can be distinguished through drug profiling. This was investigated by synthesizing methylamphetamine inhouse in a three-step process. Two ‘preprecursors’ were used in this study, phenylacetic acid (PAA) and α-phenylacetoacetonitrile (α-PAAN). Using a combination of profiling techniques, it was found that methylamphetamine samples of PAA preprecursor origin and methylamphetamine samples of α-PAAN preprecursor origin can be distinguished.

Drug Testing and Analysis published new progress about 90-64-2. 90-64-2 belongs to alcohols-buliding-blocks, auxiliary class Carboxylic acid,Benzene,Alcohol,Natural product, name is 2-Hydroxy-2-phenylacetic acid, and the molecular formula is C8H8O3, Recommanded Product: 2-Hydroxy-2-phenylacetic acid.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Albagli, A. published the artcileRate of ionization of some aromatic hydrocarbons in ethanolic dimethyl sulfoxide, COA of Formula: C19H14O2, the publication is Canadian Journal of Chemistry (1974), 52(7), 1059-61, database is CAplus.

The rates of detritiation of triphenylmethane, 9-phenylxanthene, fluorene, 9-ethylfluorene, 9-phenylfluorene, and 2,3-benzofluorene are measured in ethanolic Me2SO containing NaOEt. When the logarithm of the ionization rate is plotted against the logarithm of the ionization rate of Me2SO a straight line of near-to-unit slope is obtained in each case. There are significant differences, however, between relative ionization rates and equilibrium acidities.

Canadian Journal of Chemistry published new progress about 596-38-3. 596-38-3 belongs to alcohols-buliding-blocks, auxiliary class Other Aromatic Heterocyclic,Benzene,Alcohol, name is 9-Phenyl-9H-xanthen-9-ol, and the molecular formula is C19H14O2, COA of Formula: C19H14O2.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Bockova, Jana published the artcileChiroptical activity of hydroxycarboxylic acids with implications for the origin of biological homochirality, Synthetic Route of 90-64-2, the publication is Communications Chemistry (2021), 4(1), 86, database is CAplus.

Circularly polarised light (CPL) interacting with interstellar organic mols. might have imparted chiral bias and hence preluded prebiotic evolution of biomol. homochirality. The L-enrichment of extra-terrestrial amino acids in meteorites, as opposed to no detectable excess in monocarboxylic acids and amines, has previously been attributed to their intrinsic interaction with stellar CPL revealed by substantial differences in their chiroptical signals. Recent analyze of meteoritic hydroxycarboxylic acids (HCAs) – potential co-building blocks of ancestral proto-peptides – indicated a chiral bias toward the L-enantiomer of lactic acid. Here we report on novel anisotropy spectra of several HCAs using a synchrotron radiation electronic CD spectrophotometer to support the re-evaluation of chiral biomarkers of extra-terrestrial origin in the context of absolute photochirogenesis. We found that irradiation by CPL which would yield L-excess in amino acids would also yield L-excess in aliphatic chain HCAs, including lactic acid and mandelic acid, in the examined conditions. Only tartaric acid would show “unnatural” D-enrichment, which makes it a suitable target compound for further assessing the relevance of the CPL scenario.

Communications Chemistry published new progress about 90-64-2. 90-64-2 belongs to alcohols-buliding-blocks, auxiliary class Carboxylic acid,Benzene,Alcohol,Natural product, name is 2-Hydroxy-2-phenylacetic acid, and the molecular formula is C8H8O3, Synthetic Route of 90-64-2.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Meinert, Cornelia published the artcileAnisotropy spectroscopy of chiral alcohols, amines, and monocarboxylic acids: Implications for the analyses of extraterrestrial samples, Recommanded Product: (R)-Oxiran-2-ylmethanol, the publication is Journal of Photochemistry and Photobiology, A: Chemistry (2016), 130-137, database is CAplus.

Stereoisomers of distinct chiral amino acids were observed to occur in L-enantioenriched form in carbonaceous chondrite meteorites. Meteoritic amines and monocarboxylic acids were recently shown to occur in racemic ratio. In this study we investigated the electronic CD and anisotropy spectra of chiral alcs., chiral amines, and chiral monocarboxylic acids. We recorded CD and anisotropy spectra from 280 to 170 nm in aqueous solution using a synchrotron-radiation UV CD spectrophotometer. The obtained anisotropy spectra are employed to discuss the likely role of UV circularly polarized light leading to enantioenriched amino acids, as well as racemic amines and monocarboxylic acids during their primordial interstellar synthesis. These data will moreover accompany the European Space Agency’s Rosetta mission, which successfully landed Philae on the nucleus of comet 67P/Churyumov-Gerasimenko to search for chiral organic mols.

Journal of Photochemistry and Photobiology, A: Chemistry published new progress about 57044-25-4. 57044-25-4 belongs to alcohols-buliding-blocks, auxiliary class Epoxides,Chiral,Aliphatic hydrocarbon chain,Alcohol, name is (R)-Oxiran-2-ylmethanol, and the molecular formula is C3H6O2, Recommanded Product: (R)-Oxiran-2-ylmethanol.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Andringa, Ruben L. H. published the artcileSynthesis of phosphatidic acids via cobalt(salen) catalyzed epoxide ring-opening with dibenzyl phosphate, Application In Synthesis of 57044-25-4, the publication is Organic & Biomolecular Chemistry (2022), 20(11), 2200-2204, database is CAplus and MEDLINE.

With a CoIII(salen)OTs catalyst, dibenzyl phosphate ring-opens a variety of terminal epoxides with excellent regio-selectively and yields up to 85%. The reaction is used in a highly efficient synthesis of enantiopure mixed-diacyl phosphatidic acids, including a photoswitchable phosphatidic acid mimic.

Organic & Biomolecular Chemistry published new progress about 57044-25-4. 57044-25-4 belongs to alcohols-buliding-blocks, auxiliary class Epoxides,Chiral,Aliphatic hydrocarbon chain,Alcohol, name is (R)-Oxiran-2-ylmethanol, and the molecular formula is C3H6O2, Application In Synthesis of 57044-25-4.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Agrawal, Aparna published the artcileFabrication and Characterization of Re-Entrant Honeycomb Polyurethane Aerogels, Name: Pentane-1,5-diol, the publication is ACS Applied Polymer Materials (2022), 4(5), 3791-3801, database is CAplus.

In this work, polyurethane aerogels are fabricated in re-entrant honeycomb forms to achieve auxeticity and much higher flexibility than corresponding aerogel monoliths. For this purpose, a set of re-entrant honeycomb-shaped hollow molds is first printed from high-impact polystyrene (HIPS) using a fused filament fabrication technique and subsequently filled with polyurethane sol synthesized from an aliphatic triisocyanate and a diol selected from among butanediol, pentanediol, hexanediol, or octanediol. A sol-gel transition process yields the gel in a re-entrant honeycomb shape, which is isolated by dissolving the HIPS mold and supercritically dried using carbon dioxide. The effects of diol chain length on the properties of aerogels, such as bulk d., pore size, and tensile properties are investigated. The auxetic aerogels show different deformation behavior and much higher elongation at break than dog bone-shaped aerogel monoliths. Such unique properties of auxetic structures can extend applications of aerogels as acoustic absorbers and smart bandages that require high porosity, tunable pore structures, and high flexibility.

ACS Applied Polymer Materials published new progress about 111-29-5. 111-29-5 belongs to alcohols-buliding-blocks, auxiliary class Aliphatic hydrocarbon chain,Alcohol,Ploymers, name is Pentane-1,5-diol, and the molecular formula is C5H12O2, Name: Pentane-1,5-diol.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Barton, Benita published the artcileSynthesis and assessment of compounds trans-N,N’-bis(9-phenyl-9-xanthenyl)cyclohexane-1,4-diamine and trans-N,N’-bis(9-phenyl-9-thioxanthenyl)cyclohexane-1,4-diamine as hosts for potential xylene and ethylbenzene guests, Application of 9-Phenyl-9H-xanthen-9-ol, the publication is Journal of Inclusion Phenomena and Macrocyclic Chemistry (2019), 93(3-4), 333-346, database is CAplus.

In this work, two novel compounds, trans-N,N’-bis(9-phenyl-9-xanthenyl)cyclohexane-1,4-diamine 1 and trans-N,N’-bis(9-phenyl-9-thioxanthenyl)cyclohexane-1,4-diamine 2, were designed and successfully synthesized in our laboratories, and assessed for their host potential in the presence of potential xylene (Xy) isomer and ethylbenzene (EB) guests. Host 1 successfully formed complexes with all four of o-Xy, m-Xy, p-Xy and EB, while 2 only clathrated p-Xy and EB. Equimolar guest/guest competition experiments showed that hosts 1 and 2 possess very similar selectivities for these guests [p-Xy (73.9%) > EB (13.0%) > m-Xy (8.1%) > o-Xy (5.0%) and p-Xy (71.3%) > EB (20.2%) > m-Xy (6.0%) > o-Xy (2.5%) for 1 and 2, resp.]. Single crystal diffraction analyses revealed striking geometry changes for the sulfur host analog: while the tricyclic fused ring system of the oxygen host remained planar when guest was absent or present, this fused system of the sulfur analog experienced a dramatic geometry change from buckled (in the absence of guest) to planar (in guest presence). This observation explained the selectivity similarities of both hosts in the presence of these guests. Addnl., the relative thermal stabilities of the four complexes with host 1 were assessed by employing thermal analyses, and the results of these correlated exactly with the selectivity order, since the onset temperature of the guest release processes (Ton) was in the order p-Xy (88.0 °C) > EB (70.9 °C) > m-Xy (59.7 °C) > o-Xy (46.2 °C). Ton values also explained the significant preference of host 2 for p-Xy (115.5 °C) relative to EB (76.6 °C), resp.

Journal of Inclusion Phenomena and Macrocyclic Chemistry published new progress about 596-38-3. 596-38-3 belongs to alcohols-buliding-blocks, auxiliary class Other Aromatic Heterocyclic,Benzene,Alcohol, name is 9-Phenyl-9H-xanthen-9-ol, and the molecular formula is C19H14O2, Application of 9-Phenyl-9H-xanthen-9-ol.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Barton, Benita published the artciletrans-N,N’-Bis(9-phenyl-9-xanthenyl)cyclohexane-1,2-diamine and its thioxanthenyl derivative as potential host compounds for the separation of anilines through host-guest chemistry principles, COA of Formula: C19H14O2, the publication is Journal of Inclusion Phenomena and Macrocyclic Chemistry (2020), 97(3-4), 159-174, database is CAplus.

In this work, we investigate the potential of separating mixtures of the guest solvents aniline (ANI), N-methylaniline (NMA) and N,N-dimethylaniline (DMA) by means of host-guest chem. principles employing two novel host compounds, namely trans-N,N’-bis(9-phenyl-9-xanthenyl)cyclohexane-1,2-diamine (1,2-DAX) and trans-N,N’-bis(9-phenyl-9-thioxanthenyl)cyclohexane-1,2-diamine (1,2-DAT). These aniline solvents may exist in such mixtures since NMA and DMA are often prepared from ANI by alkylation methods, and reaction yields are seldom quant. Owing to their similar b.ps., ranging from 184 to 196°C, the more usual distillation techniques for their separation are challenging. After recrystallization experiments of the two host compounds from various combinations of these anilines, it was revealed that host-guest chem. certainly has the potential to serve as an alternative separation strategy for such mixtures Equimolar ANI/DMA solutions proved most successful, where both 1,2-DAX and 1,2-DAT showed near-quant. selectivity for DMA (90%). Both single crystal diffraction and thermal analyses were employed in order to understand the preferential behavior displayed by each host compound

Journal of Inclusion Phenomena and Macrocyclic Chemistry published new progress about 596-38-3. 596-38-3 belongs to alcohols-buliding-blocks, auxiliary class Other Aromatic Heterocyclic,Benzene,Alcohol, name is 9-Phenyl-9H-xanthen-9-ol, and the molecular formula is C19H14O2, COA of Formula: C19H14O2.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Yadav, B. P. published the artcileSynthesis of some novel pyrimidine derivatives and compared to available antimicrobial (MTCC inhibitors) drugs, Recommanded Product: 3,3,3-Trifluoropropan-1-ol, the publication is IOSR Journal of Pharmacy (2021), 11(9-1), 23-28, database is CAplus.

A new series of pyrimidine derivatives I (R¹ = trifluoromethyl, Cl; R² = Me, Et, i-Pr) have been synthesized by reacting substituted pyrimidine carboxylic acids II with 3-methoxyaniline, de-methylation using BBr₃ to form hydroxy derivatives, which were then alkylated with resp. alkyl halides R²I to synthesize substituted pyrimidine derivatives I. The synthesized compounds I were screened for their in vitro growth inhibiting activity against different strains.

IOSR Journal of Pharmacy published new progress about 2240-88-2. 2240-88-2 belongs to alcohols-buliding-blocks, auxiliary class Trifluoromethyl,Fluoride,Aliphatic hydrocarbon chain,Alcohol, name is 3,3,3-Trifluoropropan-1-ol, and the molecular formula is C15H10O2, Recommanded Product: 3,3,3-Trifluoropropan-1-ol.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts