Category: 67-51-6

An article Direct allylic C-H alkylation of enol silyl ethers enabled by photoredox-Bronsted base hybrid catalysis WOS:000472140100003 published article about PHOTOINDUCED ELECTRON-TRANSFER; PET-OXIDATIVE CYCLIZATION; MUKAIYAMA ALDOL REACTION; KETONES; BONDS; FUNCTIONALIZATION; ACTIVATION; ARYLATION; QUINONE; SCALE in [Ohmatsu, Kohsuke; Nakashima, Tsubasa; Sato, Makoto; Ooi, Takashi] Nagoya Univ, Grad Sch Engn, Inst Transformat Biomol WPI ITbM, Nagoya, Aichi 4648601, Japan; [Ohmatsu, Kohsuke; Nakashima, Tsubasa; Sato, Makoto; Ooi, Takashi] Nagoya Univ, Grad Sch Engn, Dept Mol & Macromol Chem, Nagoya, Aichi 4648601, Japan; [Ooi, Takashi] Japan Sci & Technol Agcy JST, CREST, Nagoya, Aichi 4648601, Japan 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. SDS of cas: 67-51-6

Strategies for altering the reaction pathway of reactive intermediates are of significant importance in diversifying organic synthesis. Enol silyl ethers, versatile enolate equivalents, are known to undergo one-electron oxidation to generate the radical cations that spontaneously form electrophilic alpha-carbonyl radicals via elimination of the silyl groups. Here, we demonstrate that close scrutiny of the property of the radical cations as strong C-H acids enables the identification of a catalyst system consisting of an iridium-based photosensitizer and 2,4,6-collidine for the generation of nucleophilic allylic radicals from enol silyl ethers through one-electron oxidation-deprotonation sequence under light irradiation without the desilylation of the radical cation intermediates. The resultant allylic radicals engage in the addition to electron-deficient olefins, establishing the selective allylic C-H alkylation of enol silyl ethers. This strategy is broadly applicable, and the alkylated enol silyl ethers can be transformed into highly functionalized carbonyl compounds by exploiting their common polar reactivity.

About 3,5-Dimethyl-1H-pyrazole, If you have any questions, you can contact Ohmatsu, K; Nakashima, T; Sato, M; Ooi, T or concate me.. SDS of cas: 67-51-6

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

Quality Control of 3,5-Dimethyl-1H-pyrazole. Authors Yuan, Y; Xu, RJ; Zhao, HK in ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD published article about in [Yuan, Yang; Zhao, Hongkun] Yangzhou Univ, Coll Chem & Chem Engn, Yangzhou 225002, Jiangsu, Peoples R China; [Xu, Renjie] Yangzhou Univ, Guangling Coll, Yangzhou 225009, Jiangsu, Peoples R China in 2019.0, Cited 1.0. The Name is 3,5-Dimethyl-1H-pyrazole. Through research, I have a further understanding and discovery of 67-51-6

Errors were discovered regarding the published equation coefficients of Yao and co-workers (2017) for mathematically describing the solubility of 3,5-dimethylpyrazole in nine organic solvents using the NRTL model. Larger differences were found between our back-calculated data and those reported in the authors’ published paper. The equation parameters were re-regressed based on the reported solubility data. (C) 2018 Elsevier Ltd.

Quality Control of 3,5-Dimethyl-1H-pyrazole. About 3,5-Dimethyl-1H-pyrazole, If you have any questions, you can contact Yuan, Y; Xu, RJ; Zhao, HK or concate me.

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

In 2019.0 J ORG CHEM published article about CUCURBITURIL; GUEST; CHIRALITY; BEHAVIOR in [Chandrakumar, Pradeep Kumar; Dhiman, Rajni; Woodward, Clifford E.; Day, Anthony I.] Univ New South Wales Canberra, Australian Def Force Acad, Sch PEMS, Chem, Canberra, ACT 2600, Australia; [Iranmanesh, Hasti; Beves, Jonathon E.] UNSW Sydney, Sch Chem, Sydney, NSW 2052, Australia in 2019.0, Cited 39.0. The Name is 3,5-Dimethyl-1H-pyrazole. Through research, I have a further understanding and discovery of 67-51-6. Quality Control of 3,5-Dimethyl-1H-pyrazole

The synthesis of new cationic macrocyclic host molecules is described. These macrocycles are comprised of glycoluril oligomers linked to two pyrazolium groups, which form part of a cationic wall facing into their cavities. A number of derivatives have been prepared with an objective to increasing the cavity size, and each new product has been fully characterized. Preliminary investigations of pK(a)s of Me(10)Tu-[3](2+) and an interaction of L-glutamine indicate a potential for binding anionic molecules that also carry H-bond donor groups.

Quality Control of 3,5-Dimethyl-1H-pyrazole. About 3,5-Dimethyl-1H-pyrazole, If you have any questions, you can contact Chandrakumar, PK; Dhiman, R; Woodward, CE; Iranmanesh, H; Beves, JE; Day, AI or concate me.

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

In 2020.0 INORG CHIM ACTA published article about MOLYBDENUM(VI) COMPLEXES; MOLECULAR-STRUCTURE; METAL DERIVATIVES; OXYGEN-TRANSFER; SULFOXIDES; CHEMISTRY; PYRAZOLE; CRYSTAL; POLY(PYRAZOLYL)ALKANES; COORDINATION in [Bruno, Sofia M.; Amarante, Tatiana R.; Paz, Filipe A. Almeida; Pillinger, Martyn; Valente, Anabela A.; Goncalves, Isabel S.] Univ Aveiro, Dept Chem, CICECO Aveiro Inst Mat, Campus Univ Santiago, P-3810193 Aveiro, Portugal in 2020.0, Cited 39.0. The Name is 3,5-Dimethyl-1H-pyrazole. Through research, I have a further understanding and discovery of 67-51-6. Safety of 3,5-Dimethyl-1H-pyrazole

The complex [MoO(O-2)(2)(pyrazole)(2)] (1) is an effective catalyst for the oxidation of organic sulfides (methyl-phenylsulfide and diphenylsulfide). Reactions can be run in water as the only medium, at low temperature (25 degrees C), with low catalyst loadings (0.2 mol%) and excellent H2O2 efficiency with no significant non-productive decomposition of the oxidant. Under conditions that favor sulfone formation, the overall process, including isolation of the precipitated product (by filtration or centrifugation) and recycling of the aqueous phase con-taining the catalyst, can be performed in the absence of organic or ionic liquid solvents. Catalytic results with the recycled aqueous phase were the same as those obtained in the first cycle. With water as the sole solvent, 1 is a superior catalyst to the 3,5-dimethylpyrazole complexes [MoO(O-2)(2)(dmpz)(2)] (2) and [Hdmpz](4)[Mo8O25.8(O-2)(0.2)(dmpz)(2)]center dot 4H(2)O (3). Crystal structures for 1 and 3 are presented.

Safety of 3,5-Dimethyl-1H-pyrazole. About 3,5-Dimethyl-1H-pyrazole, If you have any questions, you can contact Bruno, SM; Amarante, TR; Paz, FAA; Pillinger, M; Valente, AA; Goncalves, IS or concate me.

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

Kakuchi, R; Okura, Y in [Kakuchi, Ryohei; Okura, Yamato] Gunma Univ, Fac Sci & Technol, Div Mol Sci, 1-5-1 Tenjin, Kiryu, Gunma 3768515, Japan published The Passerini three-component reaction of aldehyde end-functionalized polymers via RAFT polymerization using chain transfer agents featuring aldehyde in 2020.0, Cited 42.0. Product Details of 67-51-6. The Name is 3,5-Dimethyl-1H-pyrazole. Through research, I have a further understanding and discovery of 67-51-6.

In this study, a novel pyrazole-carbodithioate-based chain transfer agent (CTA) featuring an aldehyde group (CTA-CHO) was designed and synthesized for RAFT polymerization. The obtained CTA-CHO was employed for the RAFT polymerization of styrene to afford well-defined polystyrenes bearing an aldehyde at their chain ends with low D values (similar to 1.1). In addition, the reactivity of the aldehyde moiety at the end of the chain was precisely evaluated, while the Passerini three-component reaction was successfully performed on the aldehyde group.

Product Details of 67-51-6. About 3,5-Dimethyl-1H-pyrazole, If you have any questions, you can contact Kakuchi, R; Okura, Y or concate me.

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

Recommanded Product: 3,5-Dimethyl-1H-pyrazole. In 2020.0 MATER TODAY COMMUN published article about BLOCKED ISOCYANATE; PHOTODIMERIZATION; POLYCARBONATE; MONOMERS; ADHESION; ACID in [Jang, Dong-Hoon; Park, Byung-Min; Han, Kwan-Young] Dankook Univ, Dept Display Engn, Cheonan Si 330714, Chungcheongnam, South Korea; [Kwon, Kyung Ho; Ree, Moonhor] Pohang Univ Sci & Technol, Polymer Res Inst, Div Adv Mat Sci, Dept Chem, Pohang 37673, South Korea in 2020.0, Cited 35.0. The Name is 3,5-Dimethyl-1H-pyrazole. Through research, I have a further understanding and discovery of 67-51-6.

Self-healing materials can partially or completely heal the damage done to them, and it is expected that their original function will be thereby restored. Herein, we report a novel self-healing polyvinyl (Sh-PV) containing functional polymer that reacts to thermal and ultraviolet (UV) energy. The structure of Sh-PV was characterized by fourier transform infrared spectroscopy (FTIR) and nuclear magnetic resonance spectroscopy (H-1 NMR). In addition, aluminum oxide (Al2O3) inorganic nanoparticles (NPs) were added and hybridized to improve their poor self-healing efficiency and surface hardness of the coated thin film. Mechanical nanoscratch testing and scanning probe microscopy (SPM) imaging of surface using a nanoindenter were performed to investigate the healing ability of self-healing thin films. The organic-inorganic hybrid self-healing polymer thin film exhibited a 10 % improvement in surface hardness as well as 100 % healing against nanoscale damage compared to virgin self-healing polymers. Here, we discuss and evaluate the optimized method and mechanism of the self-healing system based on the results of self-healing materials and physical recovery methods for healing surface damage.

Recommanded Product: 3,5-Dimethyl-1H-pyrazole. About 3,5-Dimethyl-1H-pyrazole, If you have any questions, you can contact Jang, DH; Park, BM; Kwon, KH; Ree, M; Han, KY or concate me.

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

HPLC of Formula: C5H8N2. Biswas, RG; Ray, SK; Kannaujiya, VK; Unhale, RA; Singh, VK in [Biswas, Rayhan G.; Kannaujiya, Vinod K.; Unhale, Rajshekhar A.] Indian Inst Sci Educ & Res Bhopal, Dept Chem, Bhopal 462066, Madhya Pradesh, India; [Ray, Sumit K.] Kharagpur Coll, Dept Chem, Paschim Medinipur 721305, W Bengal, India; [Singh, Vinod K.] Indian Inst Technol Kanpur, Dept Chem, Kanpur 208016, Uttar Pradesh, India published Cu(i)-Catalyzed asymmetric exo-selective synthesis of substituted pyrrolidines via a 1,3-dipolar cycloaddition reaction in 2021.0, Cited 85.0. The Name is 3,5-Dimethyl-1H-pyrazole. Through research, I have a further understanding and discovery of 67-51-6.

An (R)-DM-BINAP/Cu(CH3CN)(4)BF4 complex catalyzed exo-selective asymmetric 1,3-dipolar cycloaddition (1,3-DCA) reaction of imino esters with alpha,beta-unsaturated pyrazoleamides has been developed. A series of highly functionalized pyrrolidines with multiple stereogenic centers were obtained with good yields and diastereoselectivities and excellent enantioselectivities (up to 99% ee).

About 3,5-Dimethyl-1H-pyrazole, If you have any questions, you can contact Biswas, RG; Ray, SK; Kannaujiya, VK; Unhale, RA; Singh, VK or concate me.. HPLC of Formula: C5H8N2

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

Authors Vafaee, A; Davoodnia, A; Nakhaei, A; Yadegarian, S; Nejatianfar, M in MAIK NAUKA/INTERPERIODICA/SPRINGER published article about in [Vafaee, A.; Davoodnia, A.] Islamic Azad Univ, Dept Chem, Mashhad Branch, Mashhad 9175687119, Razavi Khorasan, Iran; [Davoodnia, A.; Nakhaei, A.] Islamic Azad Univ, Young Researchers & Elite Club, Mashhad Branch, Mashhad 9175687119, Razavi Khorasan, Iran; [Nejatianfar, M.] Ferdowsi Univ Mashhad, Dept Chem, Fac Sci, Mashhad 9177948974, Razavi Khorasan, Iran in 2021.0, Cited 33.0. 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

Two novel room-temperature disulfonic acid functionalized ionic liquids derived from 3,5-dimethyl-1H-pyrazole consisting of chloride and trichlorostannate anions, 3,5-dimethyl-1,2-disulfonic acid-1H-pyrazolium chloride and 3,5-dimethyl-1,2-disulfonic acid-1H-pyrazolium trichlorostannate, have been synthesized, characterized and evaluated for their catalytic efficiency in the synthesis of 1H-pyrazolo[1,2-b]phthalazine-5,10-diones by the one-pot, three-components reaction of phthalhydrazide, an aromatic aldehyde and malononitrile or ethyl cyanoacetate under solvent-free conditions. The results have demonstrated high catalytic activity of these novel ionic liquids containing acidic SO3H groups in producing high yields of the desired products in short reaction time. The ionic liquids can be used at least four times without any noticeable decrease in catalytic activity.

HPLC of Formula: C5H8N2. About 3,5-Dimethyl-1H-pyrazole, If you have any questions, you can contact Vafaee, A; Davoodnia, A; Nakhaei, A; Yadegarian, S; Nejatianfar, M or concate me.

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

Safety of 3,5-Dimethyl-1H-pyrazole. In 2020.0 POLYHEDRON published article about SCHIFF-BASES; ZINC(II) COMPLEXES; CRYSTAL-STRUCTURE; METAL-IONS; COPPER(II); ANTITUMOR; BEARING; NI(II); CU(II); CO(II) in [Soltani, Behzad; Ghorbanpour, Monireh; Mohammad-Rezaei, Rahim] Azarbaijan Shahid Madani Univ, Fac Sci, Dept Chem, POB 53714-161, Tabriz, Iran; [Ziegler, Christopher J.] Univ Akron, Dept Chem, Akron, OH 44325 USA; [Ebadi-Nahari, Mostafa] Azarbaijan Shahid Madani Univ, Fac Basic Sci, Dept Biol, Tabriz, Iran in 2020.0, Cited 57.0. The Name is 3,5-Dimethyl-1H-pyrazole. Through research, I have a further understanding and discovery of 67-51-6.

The synthesis, characterization, antibacterial activity and cyclic voltammetry of bidentate N,S donor pyrazole derivative ligands abbreviated as Na(EtNCSPz) (1), Na(PhNCSPz) (2), Na(PhNCSPz(me2)) (3), Na (PhNCSPz(me3)) (4) and their metal complexes with Ni(II) and Co(II) metal ions are reported, where Pz = pyrazole, Pz(me2) = 3,5-dimethylpyrazole and Pz(me3) = 3,4,5-trimethylpyrazole. All of the synthesized ligands and complexes have been characterized by physicochemical and spectroscopic methods and the crystal structures of [Ni(EtNCSPz)(2)] (1a) and [Ni(PhNCSPz(Me3))(2)] (4a) have been determined by X-ray diffraction analysis. The X-ray crystal structure of both the complexes describe a square planar coordination geometry. The electrochemical studies show that the synthesized complex is an electrochemically active species, furthermore, substitution electron donating groups on the ligands shift the reduction and oxidation potentials to negative values. Antibacterial activity results indicate these complexes possess high activity against gram-positive and gram-negative bacteria compare to the free ligands. (C) 2020 Elsevier Ltd. All rights reserved.

Safety of 3,5-Dimethyl-1H-pyrazole. About 3,5-Dimethyl-1H-pyrazole, If you have any questions, you can contact Soltani, B; Ghorbanpour, M; Ziegler, CJ; Ebadi-Nahari, M; Mohammad-Rezaei, R or concate me.

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

An article Photoredox-Catalyzed Intermolecular Hydroalkylative Dearomatization of Electron-Deficient Indole Derivatives WOS:000607016900054 published article about ALPHA-AMINO-ACIDS; DECARBOXYLATIVE ARYLATION; 4+2 CYCLOADDITIONS; AZOMETHINE YLIDES; MICHAEL ADDITION; CASCADE REACTION; 3-NITROINDOLES; ACCESS; FUNCTIONALIZATION; PYRROLOINDOLINES in [Huang, Xu-Lun; Cheng, Yuan-Zheng; Zhang, Xiao; You, Shu-Li] Chinese Acad Sci, Univ Chinese Acad Sci, State Key Lab Organometall Chem, Shanghai Inst Organ Chem,Ctr Excellence Mol Synth, Shanghai 200032, Peoples R China; [Huang, Xu-Lun; You, Shu-Li] ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 201210, Peoples R China; [Zhang, Xiao] Fujian Normal Univ, Coll Chem & Mat Sci, Fujian Key Lab Polymer Sci, Fujian Prov Key Lab Adv Mat Oriented Chem Engn, Fuzhou 350007, Peoples R China in 2020.0, Cited 119.0. Product Details of 67-51-6. The Name is 3,5-Dimethyl-1H-pyrazole. Through research, I have a further understanding and discovery of 67-51-6

Dearomatization of indole derivatives offers a straightforward approach to access diverse indolines. To date, the corresponding dearomative transformations involving electron-deficient indoles are limited. Herein, we report a one-electron strategy for dearomatization of electron-deficient indoles via a photoredox-catalyzed hydroalkylation employing commercially available glycine derivatives as the hydrofunctionalization reagents. Followed by DBU-mediated lactamization, structurally appealing lactam-fused indolines are obtained in good to excellent yields with exclusive selectivity.

Product Details of 67-51-6. About 3,5-Dimethyl-1H-pyrazole, If you have any questions, you can contact Huang, XL; Cheng, YZ; Zhang, X; You, SL or concate me.

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