Category: alcohols-buliding-blocks

Hashimoto, Yuka published the artcilePhoto-on-Demand Base-Catalyzed Phosgenation Reactions with Chloroform: Synthesis of Arylcarbonate and Halocarbonate Esters, Related Products of alcohols-buliding-blocks, the publication is Journal of Organic Chemistry (2021), 86(14), 9811-9819, database is CAplus and MEDLINE.

Carbonate esters are utilized as solvents and reagents for C1 building blocks in organic synthesis. This study reports a novel photo-on-demand in situ synthesis of carbonate esters with CHCl₃ solutions containing a mixture of an aromatic or haloalkyl alc. having relatively high acidity, and an organic base. We found that the acid-base interaction of the alc. and base in the CHCl₃ solution plays a key role in enabling the photochem. reaction. This reaction allows practical syntheses of di-Ph carbonate derivatives, haloalkyl carbonates, and polycarbonates, which are important chems. and materials in industry.

Journal of Organic Chemistry 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 C3H5F3O, Related Products of alcohols-buliding-blocks.

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

Zhou, Lei published the artcileEngineering Polymeric Prodrug Nanoplatform for Vaccination Immunotherapy of Cancer, SDS of cas: 96345-79-8, the publication is Nano Letters (2020), 20(6), 4393-4402, database is CAplus and MEDLINE.

Neoantigen-based cancer vaccines are promising for boosting cytotoxic T lymphocyte (CTL) responses. However, the therapeutic effect of cancer vaccines is severely blunted by functional suppression of the dendritic cells (DCs). Herein, we demonstrated an acid-responsive polymeric nanovaccine for activating the stimulator of interferon genes (STING) pathway and improving cancer immunotherapy. The nanovaccines were fabricated by integrating an acid-activatable polymeric conjugate of the STING agonist and neoantigen into one single nanoplatform. The nanovaccines efficiently accumulated at the lymph nodes for promoting DC uptake and facilitating cytosol release of the neoantigens. Meanwhile, the STING agonist activated the STING pathway in the DCs to elicit interferon-β secretion and to boost T-cell priming with the neoantigen. The nanovaccine dramatically inhibited tumor growth and occurrence of B16-OVA melanoma and 4T1 breast tumors in immunocompetent mouse models. Combination immunotherapy with the nanovaccines and anti-PD-L1 antibody demonstrated further improved antitumor efficacy in a 4T1 breast tumor model.

Nano Letters published new progress about 96345-79-8. 96345-79-8 belongs to alcohols-buliding-blocks, auxiliary class Sugar Units,Gal and Man, name is (2R,3S,4S,5S,6R)-2-(Hydroxymethyl)-6-(4-isothiocyanatophenoxy)tetrahydro-2H-pyran-3,4,5-triol, and the molecular formula is C16H20BNO3, SDS of cas: 96345-79-8.

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

Liang, Ming published the artcileBanana-peel-derived magnetic porous carbon as effective adsorbent for the enrichment of six bisphenols from beverage and water samples, Recommanded Product: 4,4′-Sulfonyldiphenol, the publication is Food Chemistry (2022), 131948, database is CAplus and MEDLINE.

Functionalized magnetic nanoporous carbon derived from banana peel was synthesized through carbonization, porogenesis, carboxylation and magnetization using banana peel and was successfully used as a magnetic solid phase extraction (MSPE) material for the enrichment of six bisphenols (BPs) from beverage and water samples. After the optimization of MSPE process, the enrichment factors of six target analytes were in the range of 74-112 for water samples, and 15-22 for beverage samples. Then, high-performance liquid chromatog.-quadrupole-Orbitrap high-resolution mass spectrometry (HPLC-Q Orbitrap-HRMS) was used for the separation and determination of the target analytes. Results showed that the extraction recoveries for 6 BPs were in the range of 71.9-108.4% with an RSD of 2.5-7.5% (n = 6). These results demonstrated that the as-prepared material could efficiently enrich some aromatic compounds and the proposed method is reliable and robust for the determination of BPs in water and beverage samples.

Food Chemistry published new progress about 80-09-1. 80-09-1 belongs to alcohols-buliding-blocks, auxiliary class Ploymers, name is 4,4′-Sulfonyldiphenol, and the molecular formula is C12H10O4S, Recommanded Product: 4,4′-Sulfonyldiphenol.

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

Tse, Edwin G. published the artcileNonclassical Phenyl Bioisosteres as Effective Replacements in a Series of Novel Open-Source Antimalarials, SDS of cas: 622-40-2, the publication is Journal of Medicinal Chemistry (2020), 63(20), 11585-11601, database is CAplus and MEDLINE.

The replacement of one chem. motif with another that is broadly similar is a common method in medicinal chem. to modulate the phys. and biol. properties of a mol. (i.e., bioisosterism). In recent years, bioisosteres such as cubane and bicyclo[1.1.1]pentane (BCP) have been used as highly effective Ph mimics. Herein, we show the successful incorporation of a range of Ph bioisosteres during the open-source optimization of an antimalarial series. Cubane (19) and closo-carborane (23) analogs exhibited improved in vitro potency against Plasmodium falciparum compared to the parent Ph compound; however, these changes resulted in a reduction in metabolic stability; unusually, enzyme-mediated oxidation was found to take place on the cubane core. A BCP analog (22) was found to be equipotent to its parent Ph compound and showed significantly improved metabolic properties. While these results demonstrate the utility of these atypical bioisosteres when used in a medicinal chem. program, the search to find a suitable bioisostere may well require the preparation of many candidates, in our case, 32 compounds

Journal of Medicinal Chemistry published new progress about 622-40-2. 622-40-2 belongs to alcohols-buliding-blocks, auxiliary class Morpholine,Alcohol, name is 2-Morpholinoethanol, and the molecular formula is C2H2N4O2, SDS of cas: 622-40-2.

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

Lee, Yunmi published the artcileEfficient boron-copper additions to aryl-substituted alkenes promoted by NHC-based catalysts. Enantioselective Cu-catalyzed hydroboration reactions, Recommanded Product: 2-(2,3-Dihydro-1H-inden-2-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane, the publication is Journal of the American Chemical Society (2009), 131(9), 3160-3161, database is CAplus and MEDLINE.

Efficient hydroboration of alkenes by bis-pinacoldiborane(4), B₂pin₂, catalyzed by NHC-copper(I) 2-imidazolylidene and 2-imidazolidinylidene complexes gave pinacol alkylboronic esters and the corresponding alcs. after oxidative deboration. Asym. hydroboration was achieved using chiral chloro[(4S,5S)-1,3-bis(2-methylphenyl)-4,5-diphenyl-2-imidazolylidene]copper catalyst. Reactions are promoted with 0.5-5 mol % of a readily available N-heterocyclic carbene (NHC) complex; the presence of MeOH promotes in situ protonation of the C-Cu bond and leads to efficient catalyst turnover, constituting a net Cu-catalyzed hydroboration process. Reactions proceed in >98:<2 site selectivity and furnish secondary organoborane isomers that complement those obtained through reactions of boron-hydride reagents or by Rh- or Ir-catalyzed hydroborations (benzylic secondary C-B bonds). Initial observations regarding processes catalyzed by chiral NHC complexes, delivering products in up to 99:1 enantiomeric ratio, are disclosed.

Journal of the American Chemical Society published new progress about 608534-44-7. 608534-44-7 belongs to alcohols-buliding-blocks, auxiliary class Other Aromatic,Boronic acid and ester,Boronate Esters,Boronic Acids,Boronic acid and ester, name is 2-(2,3-Dihydro-1H-inden-2-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane, and the molecular formula is C15H21BO2, Recommanded Product: 2-(2,3-Dihydro-1H-inden-2-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane.

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

Kucinski, K. published the artcileChemoselective and Catalyst-Free O-Borylation of Silanols: A Facile Access to Borasiloxanes, Recommanded Product: Triisopropylsilanol, the publication is ChemSusChem (2017), 10(23), 4695-4698, database is CAplus and MEDLINE.

This paper demonstrates the 1st highly chemoselective syntheses of various borasiloxanes from hydroboranes and silanols, achieved through catalyst-free dehydrogenative coupling at room temperature This green protocol, which uses easily accessible reagents, allows for the obtaining of borasiloxanes under air atm. and solvent-free conditions.

ChemSusChem published new progress about 17877-23-5. 17877-23-5 belongs to alcohols-buliding-blocks, auxiliary class Protection and Derivatization Reagent, name is Triisopropylsilanol, and the molecular formula is C9H22OSi, Recommanded Product: Triisopropylsilanol.

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

Kucinski, K. published the artcileChemoselective and Catalyst-Free O-Borylation of Silanols: A Facile Access to Borasiloxanes, Application In Synthesis of 597-52-4, the publication is ChemSusChem (2017), 10(23), 4695-4698, database is CAplus and MEDLINE.

This paper demonstrates the 1st highly chemoselective syntheses of various borasiloxanes from hydroboranes and silanols, achieved through catalyst-free dehydrogenative coupling at room temperature This green protocol, which uses easily accessible reagents, allows for the obtaining of borasiloxanes under air atm. and solvent-free conditions.

ChemSusChem published new progress about 597-52-4. 597-52-4 belongs to alcohols-buliding-blocks, auxiliary class Aliphatic Chain, name is Triethylsilanol, and the molecular formula is C6H16OSi, Application In Synthesis of 597-52-4.

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

Kazmierczak, Joanna published the artcileNafion as effective and selective heterogeneous catalytic system in O-metalation of silanols and POSS silanols, Quality Control of 17877-23-5, the publication is Journal of Catalysis (2018), 95-103, database is CAplus.

Herein, we demonstrate the first use of Nafion as heterogeneous catalyst in O-metalation of compounds containing Si-OH moiety (silanols and POSS silanols). Our methodol. permits efficient and highly selective formation of Si-O-E bonds (E = Si, Ge, B) within mols., under mild conditions with excellent yields. This approach allows syntheses of various unsym. disiloxanes, germasiloxanes and borasiloxanes, as well as introduction of a wide range of functional groups into silsesquioxanes. It is worth noting that Nafion can be reused for further experiments and its catalytic activity in this process is well-maintained for more than 10 recycling steps, without a decrease in yield or selectivity.

Journal of Catalysis published new progress about 17877-23-5. 17877-23-5 belongs to alcohols-buliding-blocks, auxiliary class Protection and Derivatization Reagent, name is Triisopropylsilanol, and the molecular formula is C9H22OSi, Quality Control of 17877-23-5.

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

Kucinski, Krzysztof published the artcileA Highly Effective Route to Si-O-Si Moieties through O-Silylation of Silanols and Polyhedral Oligomeric Silsesquioxane Silanols with Disilazanes, Quality Control of 17877-23-5, the publication is ChemSusChem (2019), 12(5), 1043-1048, database is CAplus and MEDLINE.

A simple and highly practical catalyst-free O-silylation of silanols with com. available disilazanes has been developed under mild conditions. In the case of polyhedral oligomeric silsesquioxane (POSS) silanols and some other silanols, it was necessary to use catalytic amounts of inexpensive Bi(OTf)₃ as addnl. catalyst. This efficient chlorine-free protocol involves the synthesis of a wide range of important organosilicon derivatives such as unsym. disiloxanes and functionalized silsesquioxanes.

ChemSusChem published new progress about 17877-23-5. 17877-23-5 belongs to alcohols-buliding-blocks, auxiliary class Protection and Derivatization Reagent, name is Triisopropylsilanol, and the molecular formula is C9H22OSi, Quality Control of 17877-23-5.

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

Kucinski, Krzysztof published the artcileO-Metalation of silanols and POSS silanols over Amberlyst-15 catalyst: A facile route to unsymmetrical siloxanes, borasiloxanes and germasiloxanes, Name: Triisopropylsilanol, the publication is Inorganica Chimica Acta (2019), 261-266, database is CAplus.

A simple and highly practical Amberlyst-catalyzed direct O-metalation of silanols, POSS silanols and alkoxysilanes under mild conditions is proposed. This protocol can be applied to the synthesis of a wide range of important organosilicon derivatives such as siloxanes, germasiloxanes, borasiloxanes and functionalized silsesquioxanes. It is worth noting that Amberlyst-15 can be reused for further experiments and its catalytic activity in this process is well-preserved for several recycling steps.

Inorganica Chimica Acta published new progress about 17877-23-5. 17877-23-5 belongs to alcohols-buliding-blocks, auxiliary class Protection and Derivatization Reagent, name is Triisopropylsilanol, and the molecular formula is C9H22OSi, Name: Triisopropylsilanol.

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