Month: October 2021

An article Removal of methylene blue by new tunable aryl/alkyl ionic liquids/salts (TAAILs) from aqueous solution WOS:000489804300001 published article about ACTIVATED CARBON; LIQUID; EXTRACTION; EQUILIBRIUM; ADSORPTION; STABILITY; SOLVENTS; RECOVERY; SALTS; DYES in [Ozdemir, Melek Canbulat] Middle East Tech Univ, Fac Engn, Dept Environm Engn, TR-06800 Ankara, Turkey in 2020.0, Cited 54.0. HPLC of Formula: C5H8N2. The Name is 3,5-Dimethyl-1H-pyrazole. Through research, I have a further understanding and discovery of 67-51-6

The removal of methylene blue (MB) from aqueous solution has been investigated using new tunable 1-aryl-2-alkyl-3,5-dimethylpyrazolium hexafluorophosphate salts ([Ph(R)C(R?)pz][PF6], R: -Cl, -Br, -Me, -OMe, R?: -C2H5, or -C4H9) as an extractant and methylene chloride as a diluent. The influence of p-substituent and alkyl chain length on the removal efficiency of MB from aqueous solution was investigated. The obtained results show that MB was extracted from aqueous solution with high extraction efficiency up to 99.7 % in a very short time. The salt (4a) used for extraction of MB was recovered and reused for four runs.

About 3,5-Dimethyl-1H-pyrazole, If you have any questions, you can contact Ozdemir, MC or concate me.. HPLC of Formula: C5H8N2

Reference:
Pyrazole – Wikipedia,
,Pyrazoles – an overview | ScienceDirect Topics

An article Enantioselective N-Alkylation of Indoles via an Intermolecular Aza-Wacker-Type Reaction WOS:000470939200002 published article about HECK ARYLATIONS; ALLYLIC ALKYLATION; ALKALOIDS; ALKENES; CASCADE; FUNCTIONALIZATION; NUCLEOPALLADATION; HETEROCYCLES; ACTIVATION; AMIDATION in [Allen, Jamie R.; Bahamonde, Ana; Furukawa, Yukino; Sigman, Matthew S.] Univ Utah, Dept Chem, 315 S 1400 E, Salt Lake City, UT 84112 USA in 2019.0, Cited 41.0. Quality Control of 3,5-Dimethyl-1H-pyrazole. The Name is 3,5-Dimethyl-1H-pyrazole. Through research, I have a further understanding and discovery of 67-51-6

The development of an intermolecular and enantioselective aza-Wacker reaction is described. Using indoles as the N-source and a selection of alkenols as the coupling partners selective beta-hydride elimination toward the alcohol was achieved. This strategy preserves the newly formed stereocenter by preventing the formation of traditionally observed enamine products. Allylic and homoallylic alcohols with a variety of functional groups are compatible with the reaction in high enantioselectivity. Isotopic-labeling experiments support a syn aminopalladation mechanism for this new class of aza-Wacker reactions.

About 3,5-Dimethyl-1H-pyrazole, If you have any questions, you can contact Allen, JR; Bahamonde, A; Furukawa, Y; Sigman, MS or concate me.. Quality Control of 3,5-Dimethyl-1H-pyrazole

Reference:
Pyrazole – Wikipedia,
,Pyrazoles – an overview | ScienceDirect Topics

Quality Control of 3,5-Dimethyl-1H-pyrazole. Authors Bhattacharyya, D; Sarmah, BK; Nandi, S; Srivastava, HK; Das, A in AMER CHEMICAL SOC published article about in [Srivastava, Hemant Kumar] Natl Inst Pharmaceut Educ & Res Guwahati, Dept Med Chem, Gauhati 781101, Assam, India; [Bhattacharyya, Dipanjan; Sarmah, Bikash Kumar; Nandi, Sekhar; Das, Animesh] Indian Inst Technol Guwahati, Dept Chem, Gauhati 781039, Assam, India in 2021.0, Cited 78.0. The Name is 3,5-Dimethyl-1H-pyrazole. Through research, I have a further understanding and discovery of 67-51-6

Herein, a phosphine-free pincer ruthenium(III) catalyzed beta-alkylation of secondary alcohols with primary alcohols to alpha-alkylated ketones and two different secondary alcohols to beta-branched ketones are reported. Notably, this transformation is environmentally benign and atom efficient with H2O and H-2 gas as the only byproducts. The protocol is extended to gram-scale reaction and for functionalization of complex vitamin E and cholesterol derivatives.

Quality Control of 3,5-Dimethyl-1H-pyrazole. About 3,5-Dimethyl-1H-pyrazole, If you have any questions, you can contact Bhattacharyya, D; Sarmah, BK; Nandi, S; Srivastava, HK; Das, A or concate me.

Reference:
Pyrazole – Wikipedia,
,Pyrazoles – an overview | ScienceDirect Topics

An article Switching the site-selectivity of C-H activation in aryl sulfonamides containing strongly coordinating N-heterocycles WOS:000488472900018 published article about LATE-STAGE FUNCTIONALIZATION; DIAZO-COMPOUNDS; RH(III)-CATALYZED SYNTHESIS; BOND FUNCTIONALIZATION; DIRECT ARYLATION; CROSS-COUPLINGS; ACCESS; OLEFINATION; OXIDES; CYCLIZATION in [Dong, Yi; Chen, Jiajing; Zou, Wenxing; Lin, Songwen; Xu, Heng] Chinese Acad Med Sci, Peking Union Med Coll, Inst Mat Med, State Key Lab Bioact Subst & Funct Nat Med, Beijing 100050, Peoples R China; [Dong, Yi; Chen, Jiajing; Zou, Wenxing; Lin, Songwen; Xu, Heng] Chinese Acad Med Sci, Peking Union Med Coll, Inst Mat Med, Beijing Key Lab Act Subst Discovery & Druggabil E, Beijing 100050, Peoples R China; [Zhang, XuePeng] Peking Univ, Shenzhen Grad Sch, Lab Computat & Drug Design, Shenzhen 518055, Peoples R China in 2019.0, Cited 93.0. Computed Properties of C5H8N2. The Name is 3,5-Dimethyl-1H-pyrazole. Through research, I have a further understanding and discovery of 67-51-6

The limitations of arene C-H functionalization of aryl sulfonamides containing strongly coordinating Nheterocycles were overcome using a Rh(III) catalyst. The site-selectivity of C-H carbenoid functionalization at the ortho position relative to either the sulfonamide or N-heterocycle directing groups was elegantly switched using solvents of different polarities and different additive concentrations. Importantly, sulfonamide-group-directed ortho-C-H carbenoid functionalization tolerated strongly coordinating N-heterocycles, including pyridine, pyrrole, thiazole, pyrimidine, and pyrazine. Density functional theory (DFT) calculations were performed to rationalize the reaction mechanisms and the influence of reaction polarity.

About 3,5-Dimethyl-1H-pyrazole, If you have any questions, you can contact Dong, Y; Zhang, XP; Chen, JJ; Zou, WX; Lin, SW; Xu, H or concate me.. Computed Properties of C5H8N2

Reference:
Pyrazole – Wikipedia,
,Pyrazoles – an overview | ScienceDirect Topics

Recommanded Product: 86-92-0. Recently I am researching about DNA-BINDING; PLASMODIUM-FALCIPARUM; COPPER(II) COMPLEXES; CU(II) COMPLEXES; DERIVATIVES; ANTICANCER; BINARY, Saw an article supported by the . Published in PERGAMON-ELSEVIER SCIENCE LTD in OXFORD ,Authors: Shaikh, I; Jadeja, RN; Patel, R. The CAS is 86-92-0. Through research, I have a further understanding and discovery of 3-Methyl-1-p-tolyl-5-pyrazolone

Three novel mixed ligand Zn(II) complexes {complex 1 = [Zn(L1)(2)(bpy)], complex 2 = [Zn(L2)(2)(bPY)], complex 3 = [Zn(L2)(2)(phen)], where bpy = 2,2′-bipyridine and phen = 1,10-phenanthroline} of 4-(4-chlorobenzoyl)-2-(3-chlorophenyl)-5-methyl-2,4-dihydro-3H-pyrazol-3-one (HL1) and 4-(4-chlorobenzoyl)-5-methyl-2-(p-tolyl)-2,4-dihydro-3H-pyrazol-3-one (HL2) were synthesized and characterized by H-1 and C-13 NMR, FTIR, TG-DTA, UV-Vis, elemental analysis, molar conductance and single crystal X-ray structure determination. Based on analytical and spectroscopic techniques, all the three Zn(II) complexes were found to have a distorted octahedral geometry. The ligands and the complexes were screened for antimalarial activity against plasmodium falciparum. The zinc(II) complexes showed greater antimalarial activity than their parent ligands. (C) 2020 Elsevier Ltd. All rights reserved.

Recommanded Product: 86-92-0. About 3-Methyl-1-p-tolyl-5-pyrazolone, If you have any questions, you can contact Shaikh, I; Jadeja, RN; Patel, R or concate me.

Reference:
Article; Zhang, Yong; Nie, Long-Jun; Luo, Liang; Mao, Jia-Xin; Liu, Jin-Xiang; Xu, Guo-Hai; Chen, Deliang; Luo, Hai-Qing; Tetrahedron; vol. 76; 7; (2020);,
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics

Quality Control of 1,5-Dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazole-4-carboxylic acid. In 2019 JMIR MHEALTH UHEALTH published article about HEART-RATE-VARIABILITY; WORK-LIFE BALANCE; BURNOUT; SURGEONS; STRESS; SATISFACTION; TONE in [Peters, Gregory Andrew; Wong, Matthew L.; Joseph, Joshua W.; Sanchez, Leon D.] Beth Israel Deaconess Med Ctr, Dept Emergency Med, 1 Deaconess Rd, Boston, MA 02215 USA; [Peters, Gregory Andrew; Wong, Matthew L.; Joseph, Joshua W.; Sanchez, Leon D.] Harvard Med Sch, Boston, MA 02115 USA in 2019, Cited 40. The Name is 1,5-Dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazole-4-carboxylic acid. Through research, I have a further understanding and discovery of 83-10-3.

Background: The high prevalence of physician burnout, particularly in emergency medicine, has garnered national attention in recent years. Objective means of measuring stress while at work can facilitate research into stress reduction interventions, and wearable photoplethysmography (PPG) technology has been proposed as a potential solution. However, the use of low-burden wearable biosensors to study training and clinical practice among emergency physicians (EP) remains untested. Objective: This pilot study aimed to (1) determine the feasibility of recording on-shift photoplethysmographic data from EP, (2) assess the quality of these data, and (3) calculate standard pulse rate variability (PRV) metrics from the acquired dataset and examine patterns in these variables over the course of an academic year. Methods: A total of 21 EP wore PPG biosensors on their wrists during clinical work in the emergency department during a 9-hour shift. Recordings were collected during the first quarter of the academic year, then again during the fourth quarter of the same year for comparison. The overall rate of usable data collection per time was computed. Standard pulse rate (PR) and PRV metrics from these two time points were calculated and entered into Student t tests. Results: More than 400 hours of data were entered into these analyses. Interpretable data were captured during 8.54% of the total recording time overall. In the fourth quarter of the academic year compared with the first quarter, there was no significant difference in median PR (75.8 vs 76.8; P=.57), mean R-R interval (0.81 vs 0.80; P=.32), SD of R-R interval (0.11 vs 0.11; P=.93), root mean square of successive difference of R-R interval (0.81 vs 0.80; P=.96), low-frequency power (3.5×103 vs 3.4×103; P=.79), high-frequency power (8.5×103 vs 8.3×103; P=.91), or low-frequency to high-frequency ratio (0.42 vs 0.41; P=.43), respectively. Power estimates for each of these tests exceeded .90. A secondary analysis of the resident-only subgroup similarly showed no significant differences over time, despite power estimates greater than .80. Conclusions: Although the use of PPG biosensors to record real-time physiological data from EP while providing clinical care seems operationally feasible, this study fails to support the notion that such an approach can efficiently provide reliable estimates of metrics of interest. No significant differences in PR or PRV metrics were found at the end of the year compared with the beginning. Although these methods may offer useful applications to other domains, it may currently have limited utility in the contexts of physician training and wellness.

Quality Control of 1,5-Dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazole-4-carboxylic acid. About 1,5-Dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazole-4-carboxylic acid, If you have any questions, you can contact Peters, GA; Wong, ML; Joseph, JW; Sanchez, LD or concate me.

Reference:
Patent; Shanghai Pharmaceutical Industry Institute; China Pharmaceutical Industry Zongyuan; Li Jianqi; Huang Daowei; Wang Wenya; Zhang Zhiguo; Jiang Ling; (45 pag.)CN107286140; (2017); A;,
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics

HPLC of Formula: C5H8N2. Authors Horiuchi, S; Moon, S; Ito, A; Tessarolo, J; Sakuda, E; Arikawa, Y; Clever, GH; Umakoshi, K in WILEY-V C H VERLAG GMBH published article about in [Horiuchi, Shinnosuke; Moon, Sangjoon; Sakuda, Eri; Arikawa, Yasuhiro; Umakoshi, Keisuke] Nagasaki Univ, Div Chem & Mat Sci, Grad Sch Engn, 1-14 Bunkyo Machi, Nagasaki 8528521, Japan; [Ito, Akitaka] Kochi Univ Technol, Sch Environm Sci & Engn, Grad Sch Engn, 185 Miyanokuchi, Kochi 7828502, Japan; [Horiuchi, Shinnosuke; Tessarolo, Jacopo; Sakuda, Eri; Clever, Guido H.] TU Dortmund Univ, Dept Chem & Chem Biol, Otto Hahn Str 6, D-44227 Dortmund, Germany in 2021.0, Cited 61.0. The Name is 3,5-Dimethyl-1H-pyrazole. Through research, I have a further understanding and discovery of 67-51-6

Multinuclear Ag clusters sandwiched by Pt complex units were synthesized and characterized by single crystal X-ray diffraction and NMR studies. The sandwich-shaped multinuclear Ag complexes showed two different types of fluxional behavior in solution: rapid slippage of Pt complex units on the Ag-3 core and a reversible demetalation-metalation reaction by the treatment with Cl anion and Ag ion, respectively. The Ag-2 complex obtained by demetalation reaction from the Ag-3 complex displayed U to Z isomerization. These multinuclear Ag complexes showed strong photoluminescence whose properties depended on the existence of Pt -> Ag dative bonds. The Ag-3 complex, identified to be chiral-at-cluster, was optically resolved by the formation of a diastereomeric salt with a chiral anion. The enantiomers show circular dichroism (CD) and circularly polarized luminescence (CPL) properties which is unprecedented for compounds based on a chiral sandwich structure. Theoretical calculations allow to understand their structural features and photophysical properties.

About 3,5-Dimethyl-1H-pyrazole, If you have any questions, you can contact Horiuchi, S; Moon, S; Ito, A; Tessarolo, J; Sakuda, E; Arikawa, Y; Clever, GH; Umakoshi, K or concate me.. HPLC of Formula: C5H8N2

Reference:
Pyrazole – Wikipedia,
,Pyrazoles – an overview | ScienceDirect Topics

Authors Soliman, SM; El-Faham, A; El Silk, SE in WILEY published article about CRYSTAL-STRUCTURES; COPPER(II)-ASSISTED HYDROLYSIS; CARBONYL-COMPLEXES; RHODIUM COMPLEXES; 2,4,6-TRIS(2-PYRIDYL)-1,3,5-TRIAZINE; COPPER; 2,4,6-TRIS(2-PYRIMIDYL)-1,3,5-TRIAZINES; RUTHENIUM(II); FUNCTIONALS; MONONUCLEAR in [Soliman, Saied M.; El-Faham, Ayman] Alexandria Univ, Fac Sci, Dept Chem, POB 426, Alexandria 21321, Egypt; [El-Faham, Ayman] King Saud Univ, Coll Sci, Dept Chem, POB 2455, Riyadh 11451, Saudi Arabia; [El Silk, Sobhy E.] Tanta Univ, Fac Sci, Bot Dept, Bacteriol Unit, Tanta 31527, Egypt in 2020.0, Cited 70.0. Name: 3,5-Dimethyl-1H-pyrazole. The Name is 3,5-Dimethyl-1H-pyrazole. Through research, I have a further understanding and discovery of 67-51-6

Two unexpected one-dimensional coordination polymers, [Cu(PT)(H2O)Cl](n) 1 and [Cu-2(BPT)(ClO4)(3)(H2O)(4)](n)center dot 2nH(2)O 2, of symmetrical triazine-based ligands were synthesized by Cu(II)-mediated hydrolysis of the 2,4-bis(3,5-dimethyl-1H-pyrazol-1-yl)-6-methoxy-1,3,5-triazine (MBPT) pincer ligand. The reaction of Cu(ClO4)(2)center dot 6H(2)O with MBPT proceeded via hydrolysis of the methoxy group to produce the dicompartmental 4,6-bis(3,5-dimethyl-1H-pyrazol-1-yl)-1,3,5-triazin-2(1H)-one ligand (HBPT) that then undergoes in situ complexation with Cu(II) to afford 2. In case of CuCl2, the reaction proceeds further with C-N cleavage of one pyrazolyl unit leading to the formation of 6-(3,5-dimethyl-1H-pyrazol-1-yl)-1,3,5-triazine-2,4(1H,3H)-dione ligand (HPT) that also undergoes in situ complexation with Cu(II) affording 1. The role of Cu(II) is to increase the Lewis acid reactivity of the water molecule where similar hydrolytic reactions for MBPT were observed in acidic medium in presence of an aqueous HCl (1:1 v/v) solution. The molecular and supramolecular structures of complexes 1 and 2 were investigated using X-ray diffraction of single crystal, Hirshfeld analysis, and density functional theory calculations. The Cl center dot center dot center dot H (11.7%) and O center dot center dot center dot H (24.7%) contacts are the most important in 1, whereas the molecular packing of 2 is controlled mainly by the O center dot center dot center dot H (58.7%) hydrogen bonds. Complex 2 showed better activity against Escherichia coli, Bacillus subtilis, and Candida albicans compared with the standard antibiotics amoxicillin, tetracycline, and ampicillin. In general, complexes 1 and 2 showed good antimicrobial activity than these antibiotics and have the advantage to be used as both antibacterial and antifungal agents.

Name: 3,5-Dimethyl-1H-pyrazole. About 3,5-Dimethyl-1H-pyrazole, If you have any questions, you can contact Soliman, SM; El-Faham, A; El Silk, SE or concate me.

Reference:
Pyrazole – Wikipedia,
,Pyrazoles – an overview | ScienceDirect Topics

An article Design, Synthesis, and Application of NNN Pincer Ligands Possessing a Remote Hydroxyl Group for Ruthenium-Catalyzed Transfer Hydrogenation of Ketones WOS:000459948500010 published article about ASYMMETRIC TRANSFER HYDROGENATION; PYRAZOLYL-IMIDAZOLYL LIGAND; COMPLEXES; ALCOHOLS; ESTERS; DEHYDROGENATION; MECHANISM; BEARING in [Cao, Zhengqiang; Qiao, Hong; Zeng, Fanlong] Northwest Univ, Natl Demonstrat Ctr Expt Chem Educ, Key Lab Synthet & Nat Funct Mol Chem, Minist Educ,Coll Chem & Mat Sci, 1 Xuefu Rd, Xian 710127, Shaanxi, Peoples R China in 2019.0, Cited 36.0. The Name is 3,5-Dimethyl-1H-pyrazole. Through research, I have a further understanding and discovery of 67-51-6. Recommanded Product: 3,5-Dimethyl-1H-pyrazole

A new family of pyridyl-based NNN pincer ligands bearing a remote pendent OH group were developed. Considerable acceleration effects on the activity of Ru-catalyzed transfer hydrogenation of ketones were imparted by the pendent OH group, and importantly, introducing a CH2OH group to the 4′-position of the pyrazolyl moiety is an appropriate choice. The results present a general strategy for exploring bifunctional ligands to construct effective catalysts.

Recommanded Product: 3,5-Dimethyl-1H-pyrazole. About 3,5-Dimethyl-1H-pyrazole, If you have any questions, you can contact Cao, ZQ; Qiao, H; Zeng, FL or concate me.

Reference:
Pyrazole – Wikipedia,
,Pyrazoles – an overview | ScienceDirect Topics

Category: pyrazoles-derivatives. In 2021 AGE AGEING published article about DRUG-REACTIONS; MEDICATION USE; OLDER-PEOPLE; CARE; COMORBIDITIES in [Delgado, Joao; Jones, Lindsay; Ballard, Clive; Melzer, David] Univ Exeter, Coll Med & Hlth, Epidemiol & Publ Hlth, Exeter EX1 2LU, Devon, England; [Bradley, Marie C.] US FDA, Off Surveillance & Epidemiol, Ctr Drug Evaluat & Res, Silver Spring, MD 20993 USA; [Allan, Louise M.; Clare, Linda] Univ Exeter, Coll Med & Hlth, Ctr Res Ageing & Cognit Hlth, Exeter EX1 2LU, Devon, England; [Fortinsky, Richard H.] Univ Connecticut, Sch Med, Ctr Aging, Mansfield, CT 06030 USA; [Hughes, Carmel M.] Queens Univ Belfast, Med Biol Ctr, Sch Pharm, Belfast BT9 7BL, Antrim, North Ireland in 2021, Cited 30. The Name is 1,5-Dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazole-4-carboxylic acid. Through research, I have a further understanding and discovery of 83-10-3.

Importance: treatment of dementia in individuals with comorbidities is complex, leading to potentially inappropriate prescribing (PIP). The impact of PIP in this population is unknown. Objective: to estimate the rate of PIP and its effect on adverse health outcomes (AHO). Design: retrospective cohort. Setting: primary care electronic health records linked to hospital discharge data from England. Subjects: 11,175 individuals with dementia aged over 65 years in 2016 and 43,463 age- and sex-matched controls. Methods: Screening Tool of Older Persons’ Prescriptions V2 defined PIP. Logistic regression tested associations with comorbidities at baseline, and survival analyses risk of incident AHO, adjusted for age, gender, deprivation and 14 comorbidities. Results: the dementia group had increased risk of PIP (73% prevalence; odds ratio [OR]: 1.92; confidence interval [CI]: 83-103%; P < 0.01) after adjusting for comorbidities. Most frequent PIP criteria were related to anti-cholinergic drugs and therapeutic duplication. Risk of PIP was higher in patients also diagnosed with coronary-heart disease (odds OR: 2.17; CI: 1.91-2.46; P < 0.01), severe mental illness (OR: 2.09; CI: 1.62-2.70; P < 0.01); and depression (OR: 1.81; CI: 1.62-2.01; P < 0.01). During follow-up (1 year), PIP was associated with increased all-cause mortality (hazard ratio: 1.14; CI: 1.021.26; P < 0.02), skin ulcer and pressure sores (hazard ratio: 1.66; CI: 1.12-2.46; P< 0.01), falls (hazard ratio: 1.37; CI: 1.15-1.63; P < 0.01), anaemia (hazard ratio: 1.61; CI: 1.10-2.38; P < 0.02) and osteoporosis (hazard ratio: 1.62; CI: 1.022.57; P < 0.04). Conclusion: patients with dementia frequently receive PIPs, and those who do are more likely to experience AHO. These results highlight the need to optimise medication in dementia patients, especially those with comorbidities. Category: pyrazoles-derivatives. About 1,5-Dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazole-4-carboxylic acid, If you have any questions, you can contact Delgado, J; Jones, L; Bradley, MC; Allan, LM; Ballard, C; Clare, L; Fortinsky, RH; Hughes, CM; Melzer, D or concate me.

Reference:
Patent; Shanghai Pharmaceutical Industry Institute; China Pharmaceutical Industry Zongyuan; Li Jianqi; Huang Daowei; Wang Wenya; Zhang Zhiguo; Jiang Ling; (45 pag.)CN107286140; (2017); A;,
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics