Day: January 20, 2022

I found the field of Chemistry very interesting. Saw the article Sustainable Synthetic Approach for (Pyrazol-4-ylidene) pyridines By Metal Catalyst-Free Aerobic C(sp(2))-C(sp(3)) Coupling Reactions between 1-Amino-2-imino-pyridines and 1-Aryl-5-pyrazolones published in 2019. Computed Properties of C11H12N2O, Reprint Addresses Ibrahim, HM; Behbehani, H (corresponding author), Kuwait Univ, Fac Sci, Chem Dept, POB 5969, Safat 13060, Kuwait.; Ibrahim, HM (corresponding author), Fayoum Univ, Fac Sci, Chem Dept, POB 63514, Al Fayyum, Egypt.. The CAS is 86-92-0. Through research, I have a further understanding and discovery of 3-Methyl-1-p-tolyl-5-pyrazolone

A novel, metal catalyst-free, and efficient method has been developed for the synthesis of (pyrazol-4-ylidene) pyridine derivatives. The process involves dehydrogenative coupling of 1-amino-2-imino-pyridines with 1-aryl-5pyrazolone derivatives utilizing O-2 as the sole oxidant. The new method benefits from a high atom economy, efficiency, and substrate scope, as well as the simplicity of reaction and product purification procedures.

Computed Properties of C11H12N2O. Welcome to talk about 86-92-0, If you have any questions, you can contact Ibrahim, HM; Behbehani, H or send Email.

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

Formula: C5H8N2. In 2019.0 CRYST GROWTH DES published article about BOND; COMPLEXES in [Verma, Ashish; Tomar, Kapil; Bharadwaj, Parimal K.] Indian Inst Technol Kanpur, Dept Chem, Kanpur 208016, Uttar Pradesh, India 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.

A novel bispyrazole-based expanded cryptand was synthesized via Schiff base condensation reaction having an internal cavity of 160 angstrom(3) with a hydrophobic nature. The cryptand features electron-rich multiple pyrazole rings for enhanced weak noncovalent interactions with the guest molecules. The host-guest capabilities of the cryptand were investigated for encapsulation of the most inactive halogen bond donor molecules (having small sigma-hole size), namely, CH2Cl2, CHCl3, CCl4, C2HCl3, C2H4Cl2, and C2H4Br2. Analysis of crystal structures clearly revealed that halogen bonding (C-Cl/Br center dot center dot center dot pi (pyrazole)) and hydrogen bonding (C-H center dot center dot center dot pi(pyrazole)) interactions played a key role in stabilizing the halogenated guests inside the hydrophobic cavity of cryptand. At the same time, the cage is efficiently able to exclude hydrophilic solvent molecules, like, water and methanol, suggesting the hydrophobic nature of the cavity. Due to the comparably large sigma-hole in C2H4Br2, it showed the strongest halogen bonding interaction with the host cryptand, while weakest interaction was found for the CH2Cl2 guest which has the smallest size sigma-hole. Furthermore, the cryptand is able to adjust its central cavity according to the size of the guest. The biggest cavity size was found for the C2H4Br2 guest, while smallest size was found for the CH2Cl2 guest molecule. This study sheds more light on the interaction of halogenated solvents via halogen and hydrogen bonding, which is critical in understanding and controlling chemical reactions where solvent effects play an important role.

Welcome to talk about 67-51-6, If you have any questions, you can contact Verma, A; Tomar, K; Bharadwaj, PK or send Email.. Formula: C5H8N2

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

Li, L; Luo, PF; Deng, YH; Shao, ZH in [Li, Long; Luo, Pengfei; Deng, Yuhua; Shao, Zhihui] Yunnan Univ, Key Lab Med Chem Nat Resource, State Key Lab Conservat & Utilizat Bioresources Y, Minist Educ,Sch Chem Sci & Technol, Kunming 650091, Yunnan, Peoples R China published Regioselectivity Switch in Palladium-Catalyzed Allenylic Cycloadditions of Allenic Esters: [4+1] or [4+3] Cycloaddition/Cross-Coupling in 2019, Cited 65. COA of Formula: C11H12N2O. The Name is 3-Methyl-1-p-tolyl-5-pyrazolone. Through research, I have a further understanding and discovery of 86-92-0.

The first Pd-catalyzed asymmetric allenylic [4+1] cycloaddition was successfully developed. Alternatively, tuning the Pd catalyst switched the reactivity toward an unprecedented [4+3] cycloaddition/cross-coupling. Ligands play a vital role in controlling the reaction pathway, allowing highly selective access to different products from identical substrates. Biological evaluation of the obtained compounds led to the discovery of new antitumor targets. A possible mechanism is proposed, suggesting two interesting catalytic cycles for the cycloaddition with palladium-butadienyls. This study also demonstrated the potential and utility of allenic esters as 1,4-biselectrophiles and C-4 synthons for participating in cycloaddition reactions.

COA of Formula: C11H12N2O. Bye, fridends, I hope you can learn more about C11H12N2O, If you have any questions, you can browse other blog as well. See you lster.

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

Recommanded Product: 83-10-3. 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. Welcome to talk about 83-10-3, 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 send Email.. Recommanded Product: 83-10-3

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

Recommanded Product: 67-51-6. Authors Meng, HF; Yang, F; Chen, MJ; Chen, C; Zhu, BL in ROYAL SOC CHEMISTRY published article about in [Meng, Haifang; Yang, Fang; Chen, Mengjia; Chen, Chen; Zhu, Bolin] Tianjin Normal Univ, Coll Chem, Tianjin Key Lab Struct & Performance Funct Mol, Tianjin 300387, Peoples R China in 2021.0, Cited 37.0. The Name is 3,5-Dimethyl-1H-pyrazole. Through research, I have a further understanding and discovery of 67-51-6

We have developed a Rh(iii)-catalyzed C-H alkenylation reaction of the N,N-bidentate chelating compound 2-(1H-pyrazol-1-yl)pyridine with alkenes via rollover cyclometalation. Mono- and dialkenyl-substituted 2-(1H-pyrazol-1-yl)pyridines could be selectively synthesized in moderate to good yields by tuning the reaction conditions. Further synthetic transformations were conducted to demonstrate the synthetic potential of our products.

Welcome to talk about 67-51-6, If you have any questions, you can contact Meng, HF; Yang, F; Chen, MJ; Chen, C; Zhu, BL or send Email.. Recommanded Product: 67-51-6

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

Name: 1,5-Dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazole-4-carboxylic acid. Authors Fan, LL; Zhang, YY; Tarin, MWK; He, TY; Rong, JD; Zheng, YS in TAYLOR & FRANCIS LTD published article about in [Fan, Lili; Zhang, Yangyang; Rong, Jundong; Zheng, Yushan] Fujian Agr & Forestry Univ, Coll Forestry, Fuzhou, Peoples R China; [Tarin, Muhammad Waqqas Khan; He, Tianyou; Zheng, Yushan] Fujian Agr & Forestry Univ, Coll Landscape, Fuzhou, Peoples R China in 2020, Cited 7. 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

Ampelocalamus scandens is native to Guizhou Province, China, and grows at an altitude of 260-320 m. It can be used as a raw material for weaving and papermaking. In the current study, the complete chloroplast (cp) genome of A. scandens was sequenced and is reported for the first time. The complete cp sequence was 139,504 bp, include large single-copy (LSC), small single-copy (SSC), and a pair of invert repeats (IR) region of 83,103 bp, 12,813 bp, and 21,793 bp, respectively. Besides, the plastid genome comprised a total of 132 genes, including protein-coding, tRNA, and rRNA genes as 85, 39, and 8 genes, respectively. Phylogenetic analysis based on 28 cp genomes reveals that A. scandens is closely associated with Ampelocalamus melicoideus in Arundinarodae.

Welcome to talk about 83-10-3, If you have any questions, you can contact Fan, LL; Zhang, YY; Tarin, MWK; He, TY; Rong, JD; Zheng, YS or send Email.. Name: 1,5-Dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazole-4-carboxylic acid

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

Authors Zhang, Y; Nie, LJ; Luo, L; Mao, JX; Liu, JX; Xu, GH; Chen, DL; Luo, HQ in PERGAMON-ELSEVIER SCIENCE LTD published article about HENRY NITROALDOL REACTIONS; ORGANIC-SYNTHESIS; ON-WATER; DERIVATIVES; ANTIPYRINE; ALCOHOLS; HETEROCYCLES; CHEMISTRY; CYCLIZATION; EFFICIENT in [Zhang, Yong; Nie, Long-Jun; Luo, Lang; Mao, Jia-Xin; Liu, Jin-Xiang; Xu, Guo-Hai; Chen, Deliang; Luo, Hai-Qing] Garman Normal Univ, Key Lab Organopharmaceut Chem, Ganzhou 341000, Peoples R China in 2020, Cited 69. Name: 3-Methyl-1-p-tolyl-5-pyrazolone. The Name is 3-Methyl-1-p-tolyl-5-pyrazolone. Through research, I have a further understanding and discovery of 86-92-0

The selective condensation of pyrazolones with isatins using water as the reaction medium is presented. This strategy provides an environmentally benign synthetic route to synthesize various potentially bioactive pyrazolone substituted oxindoles. (C) 2020 Elsevier Ltd. All rights reserved.

Name: 3-Methyl-1-p-tolyl-5-pyrazolone. Bye, fridends, I hope you can learn more about C11H12N2O, If you have any questions, you can browse other blog as well. See you lster.

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

Name: 3,5-Dimethyl-1H-pyrazole. In 2020.0 J MOL STRUCT published article about HIRSHFELD SURFACE-ANALYSIS; CU-II COMPLEXES; CRYSTAL-STRUCTURE; ACID-CHLORIDES; DFT; POLYMERS; ENERGY; MICROCAPSULES; POLYIMIDE; NBO in [Khan, Ezzat; Gul, Zarif] Univ Malakand, Dept Chem, Lower Dir 18800, Khyber Pakhtunk, Pakistan; [Shahzad, Adnan] Univ Swat, Inst Chem Sci, Khyber Pakhtunkhwa, Pakistan; [Tahir, Muhammad Nawaz] Univ Sargodha, Dept Phys, Punjab 40100, Pakistan; [Khalid, Muhammad; Asif, Hafiz Muhammad; Asim, Sumreen] Khwaja Farid Univ Engn & Informat Technol, Dept Chem, Rahim Yar Khan 64200, Pakistan; [Carmo Braga, Ataualpa Albert] Univ Sao Paulo, Inst Quim, Dept Quim Fundamental, Ave Prof Lineu Prestes 748, BR-05508000 Sao Paulo, Brazil in 2020.0, Cited 68.0. The Name is 3,5-Dimethyl-1H-pyrazole. Through research, I have a further understanding and discovery of 67-51-6.

The reaction of pyrazole derivatives ( pyrazole (Pz), 3-methylpyrazole (MPz) and 3,5-dimethylpyrazole (DMPz)) with terephthaloyl dichloride (TD) in the presence of Et3N afforded the desired products, 1,4-bis(pyrazolylcarbonyl)benzene (1), 1,4-bis(3-methylpyrazolylcarbonyl)benzene (2) and 1,4-bis(3,5-dimethylpyrazolylcarbonyl)benzene (3). Good quality crystals were isolated and diffraction data for single crystal were collected which revealed that compounds 1-3 are monoclinic with space group P21/n, C2/c and P21/c, respectively. These compounds were obtained as a result of C-N coupling reaction between the acid chloride and pyrazol derivatives with the intent to explore their structure in solution as well as solid state. Density function theory (DFT) calculations using B3LYP and CAM-B3LYP functionals with 6-311G(d,p) basis set were performed to explore geometric and electronic properties of compounds. The Root Mean Square Error (RMSE) has also been calculated for the values of geometric parameters, indicating a good agreement with experimental findings. Moreover, frontier molecular orbitals (FMOs) and natural bond orbitals (NBOs) analyses were carried out through B3LYP/6-311G(d,p) level of theory. The linear polarizability (alpha) values of nonlinear optical (NLO) analysis were calculated with the same level of theory and basis set as FMO but under different solvent conditions. Time Dependent Density Functional Theory (TD-DFT) study of these pyrazole substituted derivatives was performed aiming to investigate UV-Visible behavior. The stability of molecule has been additionally analyzed by Hirshfeld surface analysis in addition to NBO analysis. The calculated HOMO and LUMO energies from FMO assisted in calculating global reactivity parameters (Chemical hardness, chemical softness, electronegativity, EA, IP and electrophilicity). Natural population analysis (NPA) and Molecular electrostatic potential (MEP) were also performed to obtain insights about the reactivity of compounds 1-3. Theoretical calculations indicate that these compounds have considerable low reactivity and can be used for development of coordination chemistry under optimum conditions. (c) 2019 Elsevier B.V. All rights reserved.

Name: 3,5-Dimethyl-1H-pyrazole. Welcome to talk about 67-51-6, If you have any questions, you can contact Khan, E; Khalid, M; Gul, Z; Shahzad, A; Tahir, MN; Asif, HM; Asim, S; Braga, AAC or send Email.

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

Quality Control of 3,5-Dimethyl-1H-pyrazole. Khan, E; Khalid, M; Gul, Z; Shahzad, A; Tahir, MN; Asif, HM; Asim, S; Braga, AAC in [Khan, Ezzat; Gul, Zarif] Univ Malakand, Dept Chem, Lower Dir 18800, Khyber Pakhtunk, Pakistan; [Shahzad, Adnan] Univ Swat, Inst Chem Sci, Khyber Pakhtunkhwa, Pakistan; [Tahir, Muhammad Nawaz] Univ Sargodha, Dept Phys, Punjab 40100, Pakistan; [Khalid, Muhammad; Asif, Hafiz Muhammad; Asim, Sumreen] Khwaja Farid Univ Engn & Informat Technol, Dept Chem, Rahim Yar Khan 64200, Pakistan; [Carmo Braga, Ataualpa Albert] Univ Sao Paulo, Inst Quim, Dept Quim Fundamental, Ave Prof Lineu Prestes 748, BR-05508000 Sao Paulo, Brazil published Molecular structure of 1,4-bis(substituted-carbonyl)benzene: A combined experimental and theoretical approach in 2020.0, Cited 68.0. The Name is 3,5-Dimethyl-1H-pyrazole. Through research, I have a further understanding and discovery of 67-51-6.

The reaction of pyrazole derivatives ( pyrazole (Pz), 3-methylpyrazole (MPz) and 3,5-dimethylpyrazole (DMPz)) with terephthaloyl dichloride (TD) in the presence of Et3N afforded the desired products, 1,4-bis(pyrazolylcarbonyl)benzene (1), 1,4-bis(3-methylpyrazolylcarbonyl)benzene (2) and 1,4-bis(3,5-dimethylpyrazolylcarbonyl)benzene (3). Good quality crystals were isolated and diffraction data for single crystal were collected which revealed that compounds 1-3 are monoclinic with space group P21/n, C2/c and P21/c, respectively. These compounds were obtained as a result of C-N coupling reaction between the acid chloride and pyrazol derivatives with the intent to explore their structure in solution as well as solid state. Density function theory (DFT) calculations using B3LYP and CAM-B3LYP functionals with 6-311G(d,p) basis set were performed to explore geometric and electronic properties of compounds. The Root Mean Square Error (RMSE) has also been calculated for the values of geometric parameters, indicating a good agreement with experimental findings. Moreover, frontier molecular orbitals (FMOs) and natural bond orbitals (NBOs) analyses were carried out through B3LYP/6-311G(d,p) level of theory. The linear polarizability (alpha) values of nonlinear optical (NLO) analysis were calculated with the same level of theory and basis set as FMO but under different solvent conditions. Time Dependent Density Functional Theory (TD-DFT) study of these pyrazole substituted derivatives was performed aiming to investigate UV-Visible behavior. The stability of molecule has been additionally analyzed by Hirshfeld surface analysis in addition to NBO analysis. The calculated HOMO and LUMO energies from FMO assisted in calculating global reactivity parameters (Chemical hardness, chemical softness, electronegativity, EA, IP and electrophilicity). Natural population analysis (NPA) and Molecular electrostatic potential (MEP) were also performed to obtain insights about the reactivity of compounds 1-3. Theoretical calculations indicate that these compounds have considerable low reactivity and can be used for development of coordination chemistry under optimum conditions. (c) 2019 Elsevier B.V. All rights reserved.

About 3,5-Dimethyl-1H-pyrazole, If you have any questions, you can contact Khan, E; Khalid, M; Gul, Z; Shahzad, A; Tahir, MN; Asif, HM; Asim, S; Braga, AAC or concate me.. Quality Control of 3,5-Dimethyl-1H-pyrazole

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

An article Sustainable Synthetic Approach for (Pyrazol-4-ylidene) pyridines By Metal Catalyst-Free Aerobic C(sp(2))-C(sp(3)) Coupling Reactions between 1-Amino-2-imino-pyridines and 1-Aryl-5-pyrazolones WOS:000482176800041 published article about C-H; BIOLOGICAL EVALUATION; PHOTOREDOX CATALYSIS; IN-VITRO; ALPHA-GLUCOSIDASE; PYRAZOLE; DERIVATIVES; POTENT; INHIBITORS; DESIGN in [Ibrahim, Hamada Mohamed; Behbehani, Haider] Kuwait Univ, Fac Sci, Chem Dept, POB 5969, Safat 13060, Kuwait; [Ibrahim, Hamada Mohamed] Fayoum Univ, Fac Sci, Chem Dept, POB 63514, Al Fayyum, Egypt in 2019, Cited 99. The Name is 3-Methyl-1-p-tolyl-5-pyrazolone. Through research, I have a further understanding and discovery of 86-92-0. Recommanded Product: 86-92-0

A novel, metal catalyst-free, and efficient method has been developed for the synthesis of (pyrazol-4-ylidene) pyridine derivatives. The process involves dehydrogenative coupling of 1-amino-2-imino-pyridines with 1-aryl-5pyrazolone derivatives utilizing O-2 as the sole oxidant. The new method benefits from a high atom economy, efficiency, and substrate scope, as well as the simplicity of reaction and product purification procedures.

Bye, fridends, I hope you can learn more about C11H12N2O, If you have any questions, you can browse other blog as well. See you lster.. Recommanded Product: 86-92-0

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