Month: October 2021

Recently I am researching about DOMINO REACTION; ENANTIOSELECTIVE SYNTHESIS; FACILE STRATEGY; CONSTRUCTION; DESIGN, Saw an article supported by the National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [21672109, 21871148, 21472097]; Natural Science Foundation of Tianjin CityNatural Science Foundation of Tianjin [15JCYBJC20000]. Published in SCIENCE PRESS in BEIJING ,Authors: Gu, YCR; Huang, Y. The CAS is 94-41-7. Through research, I have a further understanding and discovery of Chalcone. COA of Formula: C15H12O

Rauhut-Currier (RC) reaction is an effective atom-economic method to construct C-C bond. However, the application of this reaction is limited by the lack of selectivity. Herein, an efficient intermolecular cross Rauhut-Currier reaction between chalcones and acrylates in the presence of the tributylphosphine catalyst was developed, the reactions were carried out in mild conditions, and performed well with a series of substrates, delivering the desired products with acceptable to good yields.

COA of Formula: C15H12O. About Chalcone, If you have any questions, you can contact Gu, YCR; Huang, Y or concate me.

Reference:
Thiazolidine – Wikipedia,
,Thiazolidine – ScienceDirect.com

Application In Synthesis of 1,1,1-Triethoxyethane. Authors Hajri, A; Marzouki, L in MAIK NAUKA/INTERPERIODICA/SPRINGER published article about in [Hajri, A.; Marzouki, L.] Univ Jendouba, Higher Inst Biotechnol Beja, Lab Funct Physiol & Valuat Bioresources UR17ES27, Beja, Tunisia in 2019.0, Cited 8.0. The Name is 1,1,1-Triethoxyethane. Through research, I have a further understanding and discovery of 78-39-7

The condensation of 4H-1,2,4-triazol-3-amine with ortho esters derived from acetic, propionic, and benzoic acids gave the corresponding N-(4H-1,2,4-triazol-3-yl) carboximidates which were treated with cyanamide, carbon disulfide, and sodium thiocyanate to afford 7-substituted [1,2,4]triazolo[4,3-a][1,3,5]triazin-5-amines, [1,2,4]triazolo[4,3-c][1,3,5]thiadiazine-5-thiones, and [1,2,4]triazolo[4,3-c][1,3,5]thiadiazin-5-imines, respectively. The structures of the synthesized compounds were confirmed by IR, H-1 and C-13 NMR, and mass spectra and elemental analyses.

Application In Synthesis of 1,1,1-Triethoxyethane. About 1,1,1-Triethoxyethane, If you have any questions, you can contact Hajri, A; Marzouki, L or concate me.

Reference:
Thiazolidine – Wikipedia,
,Thiazolidine – ScienceDirect.com

An article Catalyst- and acid-free Markovnikov hydration of alkynes in a sustainable H2O/ethyl lactate system WOS:000643580500054 published article about DENSITY-FUNCTIONAL THERMOCHEMISTRY; TERMINAL ALKYNES; ETHYL LACTATE; EFFICIENT; PERTURBATION; DERIVATIVES; COMPLEXES; ALDEHYDES; KETONES in [Dandia, Anshu; Saini, Pratibha; Parewa, Vijay] Univ Rajasthan, Ctr Adv Studies, Dept Chem, Jaipur, Rajasthan, India; [Chithra, M. J.; Vennapusa, Sivaranjana Reddy] Indian Inst Sci Educ & Res Thiruvananthapuram, Maruthamala PO, Thiruvananthapuram 695551, Kerala, India in 2021, Cited 62. The Name is Chalcone. Through research, I have a further understanding and discovery of 94-41-7. Recommanded Product: 94-41-7

An efficient and sustainable protocol for the hydration of alkynes has been developed under metal/acid/catalyst/ ligand-free conditions in a water/ethyl lactate mixture. The hydrogen-bond network in the ethyl lactate and water mixture plays a crucial and decisive role in activating the alkynes for hydration to afford the corresponding methyl ketones. This strategy gives the Markovnikov (ketone) addition product selectively over other possible products. The essential role of hydrogen bonding has been confirmed by experimental and theoretical techniques. A probable mechanism has been suggested by various control tests. The efficacy of the method has been further explored for the competent production of value-added alpha,beta-unsaturated carbonyl compounds through the reaction of aldehydes with alkynes as ketonic surrogates. The environmentally benign hydration method takes place under mild conditions, has broad functional-group compatibility, and uses the ethyl lactate/water (1:3) medium as a green alternative in the absence of any hazardous, harmful, or expensive substances. (C) 2021 Elsevier B.V. All rights reserved.

About Chalcone, If you have any questions, you can contact Dandia, A; Saini, P; Chithra, MJ; Vennapusa, SR; Parewa, V or concate me.. Recommanded Product: 94-41-7

Reference:
Thiazolidine – Wikipedia,
,Thiazolidine – ScienceDirect.com

COA of Formula: C15H12O. Authors Song, T; Zhou, X; Wang, XX; Xiao, JL; Yang, Y in ROYAL SOC CHEMISTRY published article about in [Song, Tao; Zhou, Xin; Wang, Xiaoxue; Yang, Yong] Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, CAS Key Lab Biobased Mat, 189 Songling Rd, Qingdao 266101, Peoples R China; [Xiao, Jianliang] Univ Liverpool, Dept Chem, Crown St, Liverpool L69 7ZD, Merseyside, England; [Song, Tao; Zhou, Xin; Wang, Xiaoxue; Yang, Yong] Shandong Energy Inst, Qingdao 266101, Peoples R China in 2021.0, Cited 66.0. The Name is Chalcone. Through research, I have a further understanding and discovery of 94-41-7

A new methodology for the synthesis of alpha-diketones was reported via a one-pot cascade process from aldehydes and ketones catalyzed by a bifunctional iron nanocomposite using H2O2 as a green oxidant in water. The one-pot strategy showed excellent catalytic stability, comprehensive suitability of substrates and important practical utility for directly synthesizing biologically active and medicinally valuable N-heterocycles via an intermittent process.

COA of Formula: C15H12O. About Chalcone, If you have any questions, you can contact Song, T; Zhou, X; Wang, XX; Xiao, JL; Yang, Y or concate me.

Reference:
Thiazolidine – Wikipedia,
,Thiazolidine – ScienceDirect.com

Authors Shan, HW; Lu, CR; Zhao, B; Yao, YM in ROYAL SOC CHEMISTRY published article about HIGHLY ENANTIOSELECTIVE EPOXIDATION; C2-AND C1-SYMMETRIC NITROGEN; DIELS-ALDER REACTION; SULFUR DERIVATIVES; MICHAEL ADDITION; TARTARIC-ACID; ALLYLIC ALCOHOLS; COMPLEXES; PHOSPHORUS; ALDEHYDES in [Shan, Haiwen; Lu, Chengrong; Zhao, Bei; Yao, Yingming] Soochow Univ, Key Lab Organ Synth Jiangsu Prov, Coll Chem Chem Engn & Mat Sci, Suzhou 215123, Peoples R China in 2021.0, Cited 100.0. Name: Chalcone. The Name is Chalcone. Through research, I have a further understanding and discovery of 94-41-7

The catalytic asymmetric epoxidation of alpha,beta-unsaturated ketones by tert-butylhydroperoxide (TBHP) has been well established using rare-earth metal amides RE[N(SiMe3)(2)](3) (RE = La(1), Nd(2), Sm(3), Y(4), Yb(5)) with chiral TADDOL ligands. It was found that the combination of Yb[N(SiMe3)(2)](3) and chiral TADDOL ligand H2L2 ((4S,5S)-2,2-dimethyl-alpha,alpha,alpha ‘,alpha ‘-tetra-3,5-bis(trifluormethylphenyl)-1,3-dioxolane-4,5-dimethanol) in a 1 : 1 molar ratio was the optimal choice, which provided the desired epoxides in excellent yields (89-99%) and good to high enantioselectivities (57-94% ee), using DBU as an additive. Various substrates were proved to have functional group tolerance. In addition, gram-level experiments and derivatization experiments were also studied.

Name: Chalcone. About Chalcone, If you have any questions, you can contact Shan, HW; Lu, CR; Zhao, B; Yao, YM or concate me.

Reference:
Thiazolidine – Wikipedia,
,Thiazolidine – ScienceDirect.com

Computed Properties of C8H18O3. In 2020.0 TETRAHEDRON LETT published article about (+/-)-GAMMA-LYCORANE; ALKALOIDS in [Pang, Yiying; Xiao, Hesheng; Ou, Wentao; Zhang, Xuesong; Wang, Xiaoji] Jiangxi Sci & Technol Normal Univ, Sch Life Sci, Nanchang, Jiangxi, Peoples R China; [Wang, Xiaoji] Dongguan Univ Technol, Sch Chem Engn & Energy Technol, Dongguan, Guangdong, Peoples R China; [Huang, Shuangping] Taiyuan Univ Technol, Coll Biomed Engn, Taiyuan, Shanxi, Peoples R China in 2020.0, Cited 37.0. The Name is 1,1,1-Triethoxyethane. Through research, I have a further understanding and discovery of 78-39-7.

A concise and straightforward total synthetic approach towards lycorine-type alkaloid (-)-gamma-lycorane has been achieved in 7 steps. The key feature of the route is the employment of a palladium-catalyzed aromatic C-H alkylation of unactivated secondary alkyl iodide. The synthetic protocols also involve a palladium-catalyzed deracemization of allylic carbonate, a Johnson-Claisen rearrangement and an iodocyclization. (C) 2020 Elsevier Ltd. All rights reserved.

About 1,1,1-Triethoxyethane, If you have any questions, you can contact Pang, YY; Xiao, HS; Ou, WT; Zhang, XS; Wang, XJ; Huang, SP or concate me.. Computed Properties of C8H18O3

Reference:
Thiazolidine – Wikipedia,
,Thiazolidine – ScienceDirect.com

An article Discovery of [1,2,4]triazolo[4,3-a]pyrazine derivatives bearing a 4-oxo-pyridazinone moiety as potential c-Met kinase inhibitors WOS:000539351700043 published article about BIOEVALUATION in [Zhang, Binliang; Liu, Xiaobo; Xiong, Hehua; Zhang, Qian; Sun, Xin; Xu, Shan; Zheng, Pengwu; Zhu, Wufu] Jiangxi Sci & Technol Normal Univ, Sch Pharm, Jiangxi Prov Key Lab Drug Design & Evaluat, 605 Fenglin Rd, Nanchang 330013, Jiangxi, Peoples R China; [Yang, Zunhua] Jiangxi Univ Tradit Chinese Med, Coll Pharm, Nanchang 330004, Jiangxi, Peoples R China in 2020.0, Cited 18.0. Recommanded Product: 78-39-7. The Name is 1,1,1-Triethoxyethane. Through research, I have a further understanding and discovery of 78-39-7

Two series of [1,2,4]triazolo[4,3-a]pyrazine derivatives bearing 4-oxo-pyridazinone moieties (compounds 21a-l and 22a-l) were designed and their IC50 values were evaluated against three cancer cell lines (A549, MCF-7 and HeLa) and c-Met kinase. Among them, the compound with most potential, 22i, exhibited excellent anti-tumor activity against A549, MCF-7 and HeLa cancer cell lines with IC50 values of 0.83 +/- 0.07 mu M, 0.15 +/- 0.08 mu M and 2.85 +/- 0.74 mu M, respectively, and it also possessed superior c-Met kinase inhibition ability at the nanomolar level (IC50 = 48 nM). Moreover, dose-dependent experiments, AO fluorescence staining, cell cycle assay, Annexin V-FITC/PI staining and docking studies were carried out in this study. The results demonstrated that compound 22i could be a potential c-Met kinase inhibitor.

Recommanded Product: 78-39-7. About 1,1,1-Triethoxyethane, If you have any questions, you can contact Zhang, BL; Liu, XB; Xiong, HH; Zhang, Q; Sun, X; Yang, ZH; Xu, S; Zheng, PW; Zhu, WF or concate me.

Reference:
Thiazolidine – Wikipedia,
,Thiazolidine – ScienceDirect.com

In 2019.0 ACS CATAL published article about ANTI-MARKOVNIKOV HYDROAMINATION; CATALYZED INTRAMOLECULAR HYDROAMINATION; COUPLED ELECTRON-TRANSFER; UNACTIVATED ALKENES; INTERMOLECULAR HYDROAMINATION; RADICAL CYCLIZATION; GENERATION; PYRROLOINDOLINES; METHODOLOGY; EFFICIENT in [Nguyen, Suong T.; Zhu, Qilei; Knowles, Robert R.] Princeton Univ, Dept Chem, Princeton, NJ 08544 USA in 2019.0, Cited 69.0. The Name is 1,1,1-Triethoxyethane. Through research, I have a further understanding and discovery of 78-39-7. Formula: C8H18O3

Olefin aminations are important synthetic technologies for the construction of aliphatic C-N bonds. Here we report a catalytic protocol for olefin hydroamidation that proceeds through transient amidyl radical intermediates that are formed via proton-coupled electron transfer (PCET) activation of the strong N-H bonds in N-alkyl amides by an excited-state iridium photocatalyst and a dialkyl phosphate base. This method exhibits a broad substrate scope, high functional group tolerance, and amenability to use in cascade polycyclization reactions. The feasibility of this PCET protocol in enabling the intermolecular anti-Markovnikov hydroamidation reactions of unactivated olefins is also demonstrated.

Formula: C8H18O3. About 1,1,1-Triethoxyethane, If you have any questions, you can contact Nguyen, ST; Zhu, QL; Knowles, RR or concate me.

Reference:
Thiazolidine – Wikipedia,
,Thiazolidine – ScienceDirect.com

Safety of Chalcone. I found the field of Chemistry very interesting. Saw the article A Chemometric Analysis of Compounds from Native New Zealand Medicinal Flora published in 2019.0, Reprint Addresses Reynisson, J (corresponding author), Univ Auckland, Sch Chem Sci, Private Bag 92019, Auckland 1142, New Zealand.. The CAS is 94-41-7. Through research, I have a further understanding and discovery of Chalcone.

Several hundred (396) compounds from New Zealand flora with medicinal properties were analyzed for their physicochemical properties. It was found that approximately 10% fulfilled all the requirements to be considered to be lead-like, over half of the compounds were deemed to be in the drug-like space and approximate to 75% were in the known drug space. These results indicate the presence of a significant proportion of compounds that are of particular interest to pursue as potential lead compounds or therapeutics. Additionally, compound classes were analyzed separatelymost carbonyl-containing compounds (aldehydes, ketones, esters and lactones), along with phenols were the most lead-like compounds, which also displayed very good proportions in the drug-like and known drug space. The information presented herein can be harnessed and utilized in future work, through focussing on the compounds and compound classes that exhibit high-levels of lead-likeness for further development.

Safety of Chalcone. About Chalcone, If you have any questions, you can contact Pilkington, LI; Yang, X; Liu, MW; Hemar, Y; Brimble, MA; Reynisson, J or concate me.

Reference:
Thiazolidine – Wikipedia,
,Thiazolidine – ScienceDirect.com

An article Effects of pi-extension on pyrrole hemithioindigo photoswitches WOS:000482244700008 published article about LIGHT; PHOTOISOMERIZATION; PHOTOCHROMISM in [Zweig, Joshua E.; Ko, Tongil A.; Huang, Junrou; Newhouse, Timothy R.] Yale Univ, Dept Chem, 225 Prospect St, New Haven, CT 06520 USA in 2019.0, Cited 33.0. HPLC of Formula: C15H12O. The Name is Chalcone. Through research, I have a further understanding and discovery of 94-41-7

The most red-shifted hemithioindigo photoswitches have been identified through systematic introduction of aryl units to a parent pyrrole hemithioindigo photoswitch. Increasing the size of the 5′-aryl substituent is ineffective at producing further redshifted chromophores. A second generation of 3′,5′-diarylated photoswitches which possess increased tunability is reported. Experimental and computational evidence indicates the 4′ position is electronically isolated from the bulk of the conjugated system. (C) 2019 Elsevier Ltd. All rights reserved.

HPLC of Formula: C15H12O. About Chalcone, If you have any questions, you can contact Zweig, JE; Ko, TA; Huang, J; Newhouse, TR or concate me.

Reference:
Thiazolidine – Wikipedia,
,Thiazolidine – ScienceDirect.com