Month: December 2022

Sedelmeier, Jorg published the artcileKMnO₄-Mediated Oxidation as a Continuous Flow Process, SDS of cas: 3919-74-2, the publication is Organic Letters (2010), 12(16), 3618-3621, database is CAplus and MEDLINE.

An efficient and easily scalable transformation of alcs. and aldehydes to carboxylic acids and nitroalkane derivatives to the corresponding carbonyls and carboxylic acids using permanganate as the oxidant within a continuous flow reactor is reported. Notably, the generation and downstream processing of MnO₂ slurries was not found to cause any blocking of the reactor when ultrasound pulses were applied to the flow system.

Organic Letters published new progress about 3919-74-2. 3919-74-2 belongs to chlorides-buliding-blocks, auxiliary class Isoxazole,Fluoride,Chloride,Carboxylic acid,Benzene, name is 3-(2-Chloro-6-fluorophenyl)-5-methylisoxazole-4-carboxylic acid, and the molecular formula is C16H10O5, SDS of cas: 3919-74-2.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Lazerwith, Scott E. published the artcileDiscovery of GS-9669, a Thumb Site II Non-Nucleoside Inhibitor of NS5B for the Treatment of Genotype 1 Chronic Hepatitis C Infection, Name: trimethyloxosulphonium chloride, the publication is Journal of Medicinal Chemistry (2014), 57(5), 1893-1901, database is CAplus and MEDLINE.

Investigation of thiophene-2-carboxylic acid HCV NS5B site II inhibitors, guided by measurement of cell culture medium binding, revealed the structure-activity relationships for intrinsic cellular potency. The pharmacokinetic profile was enhanced through incorporation of heterocyclic ethers on the N-alkyl substituent. Hydroxyl groups were incorporated to modulate protein binding. Intrinsic potency was further improved through enantiospecific introduction of an olefin in the N-acyl motif, resulting in the discovery of the phase 2 clin. candidate GS-9669. The unexpected activity of this compound against the clin. relevant NS5B M423T mutant, relative to the wild type, was shown to arise from both the N-alkyl substituent and the N-acyl group.

Journal of Medicinal Chemistry published new progress about 5034-06-0. 5034-06-0 belongs to chlorides-buliding-blocks, auxiliary class Salt,Aliphatic hydrocarbon chain, name is trimethyloxosulphonium chloride, and the molecular formula is C3H9ClOS, Name: trimethyloxosulphonium chloride.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Joyce, M. Gordon published the artcileCprK Crystal Structures Reveal Mechanism for Transcriptional Control of Halorespiration, Category: chlorides-buliding-blocks, the publication is Journal of Biological Chemistry (2006), 281(38), 28318-28325, database is CAplus and MEDLINE.

Halorespiration is a bacterial respiratory process in which haloorg. compounds act as terminal electron acceptors. This process is controlled at transcriptional level by CprK, a member of the ubiquitous CRP-FNR family. Here we present the crystal structures of oxidized CprK in presence of the ligand ortho-chlorophenolacetic acid and of reduced CprK in absence of this ligand. These structures reveal that highly specific binding of chlorinated, rather than the corresponding non-chlorinated, phenolic compounds in the NH₂-terminal β-barrels causes reorientation of these domains with respect to the central α-helix at the dimer interface. Unexpectedly, the COOH-terminal DNA-binding domains dimerize in the non-DNA binding state. We postulate the ligand-induced conformational change allows formation of interdomain contacts that disrupt the DNA domain dimer interface and leads to repositioning of the helix-turn-helix motifs. These structures provide a structural framework for further studies on transcriptional control by CRP-FNR homologs in general and of halorespiration regulation by CprK in particular.

Journal of Biological Chemistry published new progress about 33697-81-3. 33697-81-3 belongs to chlorides-buliding-blocks, auxiliary class Chloride,Carboxylic acid,Benzene,Phenol, name is 3-Chloro-4-hydroxyphenylacetic acid, and the molecular formula is C8H7ClO3, Category: chlorides-buliding-blocks.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Bellina, Fabio published the artcileMild Pd/Cu-catalyzed sila-Sonogashira coupling of (hetero)aryl bromides with (hetero)arylethynylsilanes under PTC conditions, Name: N-Benzyl-N,N-dibutylbutan-1-aminium chloride, the publication is Synlett (2012), 23(5), 773-777, database is CAplus.

The palladium/copper cocatalyzed sila-Sonogashira reaction of (hetero)arylethynysilanes with (hetero)aryl bromides in toluene and water at 40 °C under PTC conditions gave the required di(hetero)arylethynes in moderate to high yields. Activated, deactivated and ortho-substituted (hetero)aryl bromides are well tolerated. This protocol also allowed the preparation of sym. diarylethynes by double arylation of 1,2-bis(trimethylsilyl)ethyne.

Synlett published new progress about 23616-79-7. 23616-79-7 belongs to chlorides-buliding-blocks, auxiliary class Phase Transfer Catalyst, name is N-Benzyl-N,N-dibutylbutan-1-aminium chloride, and the molecular formula is C19H34ClN, Name: N-Benzyl-N,N-dibutylbutan-1-aminium chloride.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Yap, Connor published the artcileEnantioselective Nickel-Catalyzed Intramolecular Allylic Alkenylations Enabled by Reversible Alkenylnickel E/Z Isomerization, Quality Control of 480438-56-0, the publication is Angewandte Chemie, International Edition (2017), 56(28), 8216-8220, database is CAplus and MEDLINE.

Enantioselective nickel-catalyzed arylative cyclizations of substrates containing a Z-allylic phosphate tethered to an alkyne are described. These reactions give multisubstituted chiral aza- and carbocycles, and are initiated by the addition of an arylboronic acid to the alkyne, followed by cyclization of the resulting alkenylnickel species onto the allylic phosphate. The reversible E/Z isomerization of the alkenylnickel species is essential for the success of the reactions.

Angewandte Chemie, International Edition published new progress about 480438-56-0. 480438-56-0 belongs to chlorides-buliding-blocks, auxiliary class Chloride,Boronic acid and ester,Benzene,Ether,Boronic Acids,Boronic acid and ester, name is 3-Chloro-4-isopropoxyphenylboronic acid, and the molecular formula is C7H5ClN2S, Quality Control of 480438-56-0.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Tawari, Nilesh published the artcileMutagenicity prediction for nitroaromatic compounds using qstr modeling, Related Products of chlorides-buliding-blocks, the publication is International Journal of Pharmacy and Pharmaceutical Sciences (2014), 6(7), 149-157, database is CAplus.

Objective: Nitroarom. compounds are important industrial chems. widely used in the synthesis of many diverse products including drugs, dyes, polymers, pesticides and explosives. However, the mutagenicity associated with nitroarom. compounds is a toxicol. feature which poses great concern. On the other hand, there are successful examples of non-mutagenic nitroarom. mols.; indicating that safer nitroarom. compounds can be developed. In this light the aim of the present work was to predict the mutagenicity of nitroarom. compounds using an atom based QSTR model. Methods: An atom based QSTR model was developed using PHASE. In addition, mols. were studied by complete geometry optimization using DFT at B3LYP/3-21G* level of theory. Results: An atom based QSTR model was generated for prediction of mutagenicity of the compounds Conclusion: The visualization of different properties highlighted key inferences. These include the likelihood of mutagenicity for the mols. with more fused planar hydrophobic rings having hydrogen bond acceptor and electron donating substitutions. Also, all highly mutagenic compounds have two or more neg. potential regions. Specific electronic properties such as HOMO and LUMO indicate that most of the mutagenic mols. are very reactive in nature. The results of this study would be useful as a predictive tool to screen out mutagenic nitroarenes and design safer non-mutagenic nitro compounds

International Journal of Pharmacy and Pharmaceutical Sciences published new progress about 350-30-1. 350-30-1 belongs to chlorides-buliding-blocks, auxiliary class Fluoride,Chloride,Nitro Compound,Benzene, name is 3-Chloro-4-fluoronitrobenzene, and the molecular formula is C2H8Cl2N4S2, Related Products of chlorides-buliding-blocks.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Vallejos, Jean Claude published the artcileA new system for the reduction of 4-hydroxymandelic acids, Computed Properties of 33697-81-3, the publication is Bulletin de la Societe Chimique de France (1997), 134(1), 101-104, database is CAplus.

The authors describe a new reduction of 4-hydroxymandelic acids I (X = H, 3-Cl, 3-HO, 3-MeO), which is easy to perform with available, cheap and environmentally clean reagents. The reduction of these acids is an important method for the synthesis of (4-hydroxyphenyl)acetic acids. The new reducing system is constituted of sodium bisulfite or dithionite in catalytic quantities and formic acid in slight excess.

Bulletin de la Societe Chimique de France published new progress about 33697-81-3. 33697-81-3 belongs to chlorides-buliding-blocks, auxiliary class Chloride,Carboxylic acid,Benzene,Phenol, name is 3-Chloro-4-hydroxyphenylacetic acid, and the molecular formula is C8H10BNO3, Computed Properties of 33697-81-3.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Cahiez, Gerard published the artcileA user-friendly procedure for the preparation of secondary alkyl chlorides, Category: chlorides-buliding-blocks, the publication is Synthesis (2013), 45(2), 231-236, database is CAplus.

Secondary alkyl chlorides have been efficiently prepared from secondary alkyl sulfonates under mild and user-friendly conditions. The exchange reaction was generally performed by using benzyltributylammonium chloride in acetone (reflux, 30 min). Yields are excellent from functionalized, base-sensitive and hindered secondary alkyl sulfonates.

Synthesis published new progress about 23616-79-7. 23616-79-7 belongs to chlorides-buliding-blocks, auxiliary class Phase Transfer Catalyst, name is N-Benzyl-N,N-dibutylbutan-1-aminium chloride, and the molecular formula is C19H34ClN, Category: chlorides-buliding-blocks.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Ashraf, Muhammad Awais published the artcileSustainable radical approaches for cross electrophile coupling to synthesize trifluoromethyl- and allyl-substituted tert-alcohols, COA of Formula: C8H4ClF3O, the publication is iScience (2021), 24(12), 103388, database is CAplus and MEDLINE.

Trifluoromethylated mols. have gained privileged recognition among the medicinal and pharmaceutical chemists. Sustainable photoredox- and electrochem. processes were employed to facilitate the relatively less explored radical cross-electrophile coupling to access trifluoromethyl- and allyl-substituted tert-alcs. I (Ar = Ph, 2-ClC₆H₄, 2-naphthyl, etc.). Reactions proceed through trifluoromethyl ketyl radical and allyl radical intermediates, which underwent challenging radical-radical cross-coupling. The developed transformations are mild and chemo-selective to give cross-coupled products and deliver a wide range of valuable trifluoromethyl- and allyl-containing tertiary alcs. Both processes can also be applied for the synthesis of amine variant containing trifluoromethyl and allyl moiety, which is considered as amide bioisostere.

iScience published new progress about 5860-95-7. 5860-95-7 belongs to chlorides-buliding-blocks, auxiliary class Trifluoromethyl,Fluoride,Chloride,Benzene,Ketone, name is 1-(2-Chlorophenyl)-2,2,2-trifluoroethanone, and the molecular formula is C8H4ClF3O, COA of Formula: C8H4ClF3O.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Fang, Chao published the artcileDiscovery of heterocyclic replacements for the coumarin core of anti-tubercular FadD32 inhibitors, Computed Properties of 854778-30-6, the publication is Bioorganic & Medicinal Chemistry Letters (2018), 28(22), 3529-3533, database is CAplus and MEDLINE.

Previous work established a coumarin scaffold as a starting point for inhibition of Mycobacterium tuberculosis (Mtb) FadD32 enzymic activity. After further profiling of the coumarin inhibitor 4 revealed chem. instability, the authors discovered that a quinoline ring circumvented this instability and had the advantage of offering addnl. substitution vectors to further optimize. Ensuing SAR studies gave rise to quinoline-2-carboxamides with potent antitubercular activity. Further optimization of ADME/PK properties culminated in I that exhibited compelling in vivo efficacy in a mouse model of Mtb infection.

Bioorganic & Medicinal Chemistry Letters published new progress about 854778-30-6. 854778-30-6 belongs to chlorides-buliding-blocks, auxiliary class Chloride,Boronic acid and ester,Benzene,Ether,Boronic Acids,Boronic acid and ester, name is (2-Chloro-3-methoxyphenyl)boronic acid, and the molecular formula is C7H8BClO3, Computed Properties of 854778-30-6.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics