Category: chlorides-buliding-blocks

Tsygankov, Alexey A.; Chusov, Denis published the artcile< Straightforward Access to High-Performance Organometallic Catalysts by Fluoride Activation: Proof of Principle on Asymmetric Cyanation, Asymmetric Michael Addition, CO2 Addition to Epoxide, and Reductive Alkylation of Amines by Tetrahydrofuran>, Category: chlorides-buliding-blocks, the main research area is fluoride activated organometallic catalyst preparation; asym cyanation Michael addition reductive alkylation.

The well-known transition metal catalysts can be transformed into high-performance versions by the simple use of a fluoride anion source. In situ fluoride-activated catalysts are highly active catalytic species. The isolation may lead to degradation of the species or a decrease in catalytic activity. Fluoride activation of known, relatively simple catalysts resulted in the development of one of the most efficient catalytic systems for the asym. cyanation of aldehydes, asym. Michael addition, and synthesis of cyclic carbonates. Furthermore, the fluoride-assisted reductive opening of THF with amines was developed. The proposed approach can find broad applications in the enhancement of known catalytic processes and in the design of new ones.

ACS Catalysis published new progress about Alkenes, nitro Role: SPN (Synthetic Preparation), PREP (Preparation). 5153-70-8 belongs to class chlorides-buliding-blocks, and the molecular formula is C8H6ClNO2, Category: chlorides-buliding-blocks.

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Li, Wenhui; Shi, Yali; Gao, Lihong; Liu, Jiemin; Cai, Yaqi published the artcile< Occurrence, fate and risk assessment of parabens and their chlorinated derivatives in an advanced wastewater treatment plant>, COA of Formula: C8H7ClO3, the main research area is fate risk assessment paraben chlorinated derivative advanced wastewater; Advanced wastewater treatment plant; Chlorinated parabens; PHBA; Parabens; Risk assessment.

Parabens, p-hydroxybenzoic acid (PHBA) and chlorinated derivatives, were simultaneously determined in wastewater and sludge samples along the whole process in an advanced wastewater treatment plant (WWTP). Nine target compounds were detected in this WWTP, and methylparaben and PHBA were the dominant compounds in these samples. It is noteworthy that octylparaben with longer chain was 1st detected in this work. Mass balance results showed that 91.8% of the initial parabens mass loading was lost mainly due to degradation, while the contribution of sorption and output of primary and excess sludge was much less (7.5%), indicating that biodegradation played a significant role in the removal of parabens during the conventional treatment process. Specifically, parabens were mainly degraded in the anaerobic tank, and PHBA could be effectively removed at high rates after the advanced treatment. However, both biodegradation and adsorption accounted for minor contribution to the removal of chlorinated parabens during conventional treatment process, and they were only scantly removed by conventional treatment (33.9-40.7%) and partially removed by advanced treatment (59.2-82.8%). Risk assessment indicated that parabens and their chlorinated derivatives in secondary and tertiary effluent are not likely to produce biol. effects on aquatic ecosystems.

Journal of Hazardous Materials published new progress about Advanced wastewater treatment. 3964-57-6 belongs to class chlorides-buliding-blocks, and the molecular formula is C8H7ClO3, COA of Formula: C8H7ClO3.

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Scrano, Laura; Bufo, Sabino A.; D’Auria, Maurizio; Meallier, Pierre; Behechti, Akbar; Shramm, Karl Werner published the artcile< Photochemistry and photoinduced toxicity of acifluorfen, a diphenyl-ether herbicide>, Synthetic Route of 35852-58-5, the main research area is photochem photoinduced toxicity acifluorfen UV photolysis.

Photochem. studies can be helpful in assessing the environmental fate of chems. Photochem. reactions lead to the formation of byproducts that can exhibit different toxicol. properties from the original compound For this reason the photochem. behavior of the herbicide acifluorfen (5-[2-chloro-4-(trifluoromethyl)phenoxy]-2-nitrobenzoic acid) in the presence of different solvents was studied. Photochem. reactions were carried out using a high-pressure mercury arc and a solar simulator. Kinetic parameters and quantum yields were determined The identification of photoproducts was performed by mass spectrometry and [1H] NMR. Nitrofluorfen, hydroxy-nitrofluorfen, 2-chloro-4-(trifluoromethyl)-phenol, 5-trifluoromethyl-5′-nitrodibenzofuran, and other derivatives were identified. The photochem. reactions were also carried out in the presence of either a singlet or a triplet quencher, and in the presence of either a radical initiator or a radical inhibitor. Substances used as inhibitors of the excited levels T1 and S1 showed that photodegradation of acifluorfen begins from a singlet state S1 through a π,π* transition. The role of free radicals in the photodegradation of acifluorfen was determined and a radical mechanism was proposed. Toxicity tests against Daphnia magna Strauss showed that acifluorfen was not toxic at a concentration of 0.1 mM; however, photoproducts formed after 36 h of UV exposure of the herbicide induced a remarkable toxicity to the test organism.

Journal of Environmental Quality published new progress about Daphnia magna. 35852-58-5 belongs to class chlorides-buliding-blocks, and the molecular formula is C7H4ClF3O, Synthetic Route of 35852-58-5.

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Swain, Baijayantimala; Angeli, Andrea; Singh, Priti; Supuran, Claudiu T.; Arifuddin, Mohammed published the artcile< New coumarin/sulfocoumarin linked phenylacrylamides as selective transmembrane carbonic anhydrase inhibitors: Synthesis and in-vitro biological evaluation>, Safety of (E)-Cinnamoyl chloride, the main research area is aryl oxo chromenyl acrylamide preparation carbonic anhydrase inhibitor human; dioxidobenzooxathiinyl aryl acrylamide preparation carbonic anhydrase inhibitor human; Carbonic anhydrase; Coumarin; Hypoxia tumor; Phenylacrylamide; Sulfocoumarin; XII isoform; hCA IX.

Two novel series of phenylacrylamide linked coumarins I [R = H, Me; Ar = Ph, 4-FC6H4, 4-MeOC6H4, etc.] and sulfocoumarins II [Ar1 = 4-FC6H4, 3-F3CC6H4, 4-NCC6H4, etc.] were synthesized and evaluated against four physiol. relevant human carbonic anhydrases (hCAs, EC 4.2.1.1), isoforms hCA I, hCA II, hCA IX and hCA XII for their inhibitory action. Compounds I and II when screened for carbonic anhydrase inhibitory activity, they showned selective inhibition toward the tumor associated isoforms hCA IX and XII over CA I and II, with inhibition constants in the submicromolar to low nanomolar range. Compound I [R = H; Ar = 4-FC6H4] and II [Ar1 = 4-NCC6H4] exhibited significant inhibition with low nanomolar potency against hCA IX, whereas I [R = H; Ar = 3,4-(OMe)2C6H3] was effective against hCA XII. Compounds I [R = H; Ar = 4-FC6H4, 3,4-(OMe)2C6H3] and II [Ar1 = 4-NCC6H4] might be considered as lead mols. for future development of cancer therapeutics based on a novel mechanism of action.

Bioorganic & Medicinal Chemistry published new progress about Acid chlorides Role: RCT (Reactant), SPN (Synthetic Preparation), RACT (Reactant or Reagent), PREP (Preparation). 17082-09-6 belongs to class chlorides-buliding-blocks, and the molecular formula is C9H7ClO, Safety of (E)-Cinnamoyl chloride.

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Yu, Yuye published the artcile< Microwave-assisted synthesis and biological activity of 2,5-disubstituted-1,3,4-thiadiazole>, SDS of cas: 70057-67-9, the main research area is carboxylic acid thiosemicarbazide cyclocondensation phosphoryl chloride dehydrating agent; thiadiazole preparation antifungal activity.

The reaction of substitute aryl and alkyl acid with thiosemicarbazide in the presence of dehydrating agent POCl3, affords a series of 2-amino-5-aryl-1,3,4-thiadiazoles under microwave irradiation 2,5-Disubstituted-1,3,4-thiadiazoles have attracted much attention due to their diverse biol. activities, such as antimicrobial, antibacterial, anesthetic, anticonvulsant and antiinflammatory activities. Compared with classical methods, this method has the advantages of high yields, short reaction time, easy preparation and mild reaction conditions. The preliminary biol. test showed that the synthesized compound has weak antifungal activity to G. zeae Petch, B. cinerea Pers, Phytophthora infestans (Mont.) de Bary, Botryosphaeria berengeriana f. sp. piricola (Nose) koganezawa et Sakuma, Fusarium oxysporum f.sp. cucumerinum and Cercospora arachidicola. The structures of compounds were characterized by m.ps., 1H NMR and IR.

Asian Journal of Chemistry published new progress about Carboxylic acids Role: RCT (Reactant), RACT (Reactant or Reagent). 70057-67-9 belongs to class chlorides-buliding-blocks, and the molecular formula is C8H6ClN3S, SDS of cas: 70057-67-9.

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Jiang, Zhongyong; Li, Kun; Cai, Xiaoyan; Chubenko, Eugene; Bondarenko, Vitaly; Mao, Liang; Zhao, Yulong; Gu, Xiuquan published the artcile< Enhanced performance of FeOOH/ZnIn2S4/Au nanosheet arrays for visible light water splitting>, Computed Properties of 22519-64-8, the main research area is iron oxyhydroxide zinc indium sulfide gold nanosheet water splitting.

Carrier separation, charge transport, and visible light absorption are the main factors affecting the solar water splitting performance of a semiconductor photoanode. In this work, ZnIn2S4 (ZIS) nanosheet arrays (NSAs) were prepared by a hydrothermal route on a transparent fluorine-doped tin oxide (FTO) substrate, which was followed by a modification with an amorphous FeOOH thin layer. The surface morphol. of ZIS NSAs was shown not to change regardless of whether Au was used as the seeding layer. Besides, the effect of the FeSO4 solution concentration on the morphol., optical absorption, and photoelectrochem. (PEC) performance was investigated. The PEC measurements showed that at the 1.23 V bias relative to RHE (VRHE), the FeOOH/ZIS/Au optical photoanodes exhibited a 4.5 and 1.9 times higher photocurrent d. than the ZIS/FTO and ZIS/Au/FTO electrodes, resp. For the 0.05Fe/ZIS/Au/FTO samples, the 0.91 mA cm-2 initial photocurrent d. was achieved at VRHE of 1.23 V. The FeOOH/Au/ZIS photoanodes also displayed a maximum H2 yield amount of 26.2μmol cm-2 h-1. It was also observed that the enhanced PEC performance may be resulted from the synergistic effect of the FeOOH top decoration and Au under layer. Specifically, FeOOH facilitated the hole injection into the electrolyte, while Au NPs provided a number of sinks for the electron transport to the FTO substrates.

Journal of Materials Science: Materials in Electronics published new progress about Band gap. 22519-64-8 belongs to class chlorides-buliding-blocks, and the molecular formula is Cl3H8InO4, Computed Properties of 22519-64-8.

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Gummidi, Lalitha; Kerru, Nagaraju; Awolade, Paul; Raza, Asif; Sharma, Arun K.; Singh, Parvesh published the artcile< Synthesis of indole-tethered [1,3,4]thiadiazolo and [1,3,4]oxadiazolo[3,2-a]pyrimidin-5-one hybrids as anti-pancreatic cancer agents>, Synthetic Route of 70057-67-9, the main research area is indole tethered thiadiazolo oxadiazolopyrimidinone hydrid preparation antitumor agent; Indole; Molecular hybridization; Pancreatic cancer; Pyrimidinone; [4+2] Cycloaddition reaction.

New indole-tethered [1,3,4]thiadiazolo[3,2-a]pyrimidin-5-one (e.g. I) and [1,3,4]oxadiazolo[3,2-a]pyrimidin-5-one hybrids (e.g. II) were synthesized using [4+2] cycloaddition reactions of functionalized 1,3-diazabuta-1,3-dienes with indole-ketenes. All mol. hybrids were structurally characterized by spectroscopic techniques (IR, NMR, and HRMS) and screened for their anti-pancreatic cancer activity in vitro. The [1,3,4]oxadiazolo[3,2-a]pyrimidin-5-one hybrids showed stronger anti-pancreatic cancer activity than the [1,3,4]thiadiazolo[3,2-a]pyrimidin-5-one hybrids against the PANC-1 cell line. II bearing an ortho-chlorophenyl moiety emerged as the most potent anti-pancreatic cancer agent with an IC50 value of 7.7 ± 0.4μM, much superior to the standard drug Gemcitabine (IC50 > 500μM). The discovery of these [1,3,4]thiadiazolo and [1,3,4]oxadiazolo[3,2-a]pyrimidin-5-one hybrids elicits their potentials as pursuable candidates for pancreatic cancer chemotherapy.

Bioorganic & Medicinal Chemistry Letters published new progress about [4+2] Cycloaddition reaction. 70057-67-9 belongs to class chlorides-buliding-blocks, and the molecular formula is C8H6ClN3S, Synthetic Route of 70057-67-9.

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Zhou, Lu; Zhu, Chuan; Bi, Peijia; Feng, Chao published the artcile< Ni-catalyzed migratory fluoro-alkenylation of unactivated alkyl bromides with gem-difluoroalkenes>, Recommanded Product: 3-Chlorophenethyl Bromide, the main research area is aralkyl bromide aryl difluoroalkene nickel catalyst stereoselective regioselective fluoroalkenylation; diaryl fluoroalkene preparation.

Nickel-catalyzed highly regio- and stereoselective migratory fluoro-alkenylation of unactivated alkyl bromides was reported. Catalytic cycle merged alkyl nickel chain-walking and defluorinative coupling enabled the introduction of a broad array of fluoroalkenyl moieties into carbon chains. Control experiments with other halogenated alkenes demonstrated the essential role of fluorine atoms in this reaction. The reaction proceeded under mild conditions and allowed for the synthesis of a variety of valuable monofluoroalkenes.

Chemical Science published new progress about Alkenylation catalysts, stereoselective. 16799-05-6 belongs to class chlorides-buliding-blocks, and the molecular formula is C8H8BrCl, Recommanded Product: 3-Chlorophenethyl Bromide.

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Lu, Tong; Dong, Ling; Pan, Hongmei; Wu, Xuedan; Chen, Xia; Gu, Chengwen; Tao, Naili; Wang, Ao; Zhang, Kehua; Jin, Jie published the artcile< Design and synthesis of C-ring quinoxaline-substituted sinomenine 1,2,3-triazole derivatives via click reactions>, Computed Properties of 611-19-8, the main research area is quinoxalinyl triazolyl sinomenine preparation.

The synthesis of C-ring quinoxaline-substituted sinomenine 1,2,3-triazole derivatives at the 4-OH via click reactions was accomplished, and a total of 16 novel sinomenine double N-heterocyclic derivatives are obtained in 74%-95% yields. The C-ring is first transformed into a 1,2-diketone structure under the action of hydrochloric acid, and then reacted with o-phenylenediamine to obtain a C-ring quinoxaline-substituted structure. The 4-OH of sinomenine reacted with chloropropyne to give an alkynyl sinomenine, and then reacts with sodium azide and various benzyl chlorides to give the target compounds All the synthesized derivatives were characterized by Fourier-transform IR spectrometry, high resolution mass spectrometry, 1H NMR, and 13C NMR spectroscopy.

Journal of Chemical Research published new progress about Aralkyl chlorides Role: RCT (Reactant), RACT (Reactant or Reagent). 611-19-8 belongs to class chlorides-buliding-blocks, and the molecular formula is C7H6Cl2, Computed Properties of 611-19-8.

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Su, Jinling; Zhang, Yan; Chen, Mingren; Li, Weiming; Qin, Xuewei; Xie, Yanping; Qin, Lixiao; Huang, Shihua; Zhang, Min published the artcile< A Copper Halide Promoted Regioselective Halogenation of Coumarins Using N-Halosuccinimides as Halide Source>, Application In Synthesis of 128-09-6, the main research area is chloro bromo coumarin preparation regioselective; coumarin halogenation halosuccinimide copper halide catalyst.

A safe, convenient, and regioselective synthesis of 3-halo coumarins using a metal halide (CuX2 alone or with ZnX2) promoted halogenation with N-halosuccinimides (NXS) as halide source. The synthesis involved the steady in situ generation of highly reactive pos. halogen (X+) by the coordination of copper or zinc with the N-halosuccinimide and subsequent electrophilic aromatic substitution of the electron-deficient coumarins. This procedure works well also for the halogenation of less electron-rich naphthoquinones, flavones, and methoxypsoralen in moderate to quant. yields. This protocol features simple exptl. conditions using readily available inexpensive reagents and provides a convenient approach to the chlorination or bromination of some useful heteroaromatic compounds

Synlett published new progress about Bromination catalysts (regioselective). 128-09-6 belongs to class chlorides-buliding-blocks, and the molecular formula is C4H4ClNO2, Application In Synthesis of 128-09-6.

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics