3-Alkenyltyrosines Accessed by Suzuki-Miyaura Coupling: A Key Intermediate in the Synthesis and Mechanistic Study of Povarov Multicomponent Reactions

2017 ◽  
Vol 6 (7) ◽  
pp. 913-920 ◽  
Author(s):  
Stanley N. S. Vasconcelos ◽  
Vitor H. Menezes da Silva ◽  
Ataualpa A. C. Braga ◽  
Anwar Shamim ◽  
Frederico B. Souza ◽  
...  
Keyword(s):  
Multicomponent Reactions ◽  
Mechanistic Study

ChemInform Abstract: Practical Synthesis and Mechanistic Study of Polysubstituted Tetrahydropyrimidines with Use of Domino Multicomponent Reactions.

ChemInform ◽  
2009 ◽  
Vol 40 (39) ◽  
Author(s):  
Qiuhua Zhu ◽  
Huanfeng Jiang ◽  
Jinghao Li ◽  
Min Zhang ◽  
Xiujun Wang ◽  
...  
Keyword(s):  
Multicomponent Reactions ◽  
Mechanistic Study ◽  
Practical Synthesis

Practical synthesis and mechanistic study of polysubstituted tetrahydropyrimidines with use of domino multicomponent reactions

Tetrahedron ◽  
2009 ◽  
Vol 65 (23) ◽  
pp. 4604-4613 ◽  
Author(s):  
Qiuhua Zhu ◽  
Huanfeng Jiang ◽  
Jinghao Li ◽  
Min Zhang ◽  
Xiujun Wang ◽  
...  
Keyword(s):  
Multicomponent Reactions ◽  
Mechanistic Study ◽  
Practical Synthesis

Shifting the Energy Landscape of Multicomponent Reactions Using Aziridine Aldehyde Dimers: A Mechanistic Study

2014 ◽  
Vol 79 (20) ◽  
pp. 9465-9471 ◽  
Author(s):  
Lee Belding ◽  
Serge Zaretsky ◽  
Benjamin H. Rotstein ◽  
Andrei K. Yudin ◽  
Travis Dudding
Keyword(s):  
Multicomponent Reactions ◽  
Energy Landscape ◽  
Mechanistic Study ◽  
Aziridine Aldehyde

Mechanistic study of proliferation induced by Angelica sinensis in gastric epithelial cells

2001 ◽  
Vol 120 (5) ◽  
pp. A145-A145
Author(s):  
C CHO ◽  
Y YE ◽  
E LIU ◽  
V SHIN ◽  
N SHAM
Keyword(s):  
Epithelial Cells ◽  
Mechanistic Study ◽  
Angelica Sinensis ◽  
Gastric Epithelial Cells

Mechanistic study on the cardioprotective and chemosensitizing effects of a novel danshensu derivative

Planta Medica ◽  
2014 ◽  
Vol 80 (16) ◽  
Author(s):  
L Wang ◽  
L Shan ◽  
G Cui ◽  
Y Chen ◽  
J li ◽  
...  
Keyword(s):  
Mechanistic Study

Mechanistic Study and Development of Catalytic Reactions of Sm(II)

2018 ◽  
Author(s):  
Sandepan Maity ◽  
Robert Flowers
Keyword(s):  
Molecular Weight ◽  
High Molecular Weight ◽  
Proton Donor ◽  
Catalytic Reactions ◽  
Mechanistic Study ◽  
Mechanistic Studies ◽  
Cyclization Reactions ◽  
Mechanistic Approach ◽  
Donor Source

Despite the broad utility and application of SmI<sub>2</sub>in synthesis, the reagent is used in stoichiometric amounts and has a high molecular weight, resulting in a large amount of material being used for reactions requiring one or more equivalents of electrons. We report mechanistic studies on catalytic reactions of Sm(II) employing a terminal magnesium reductant and trimethyl silyl chloride in concert with a non-coordinating proton donor source. Reactions using this approach permitted reductions with as little as 1 mol% Sm. The mechanistic approach enabled catalysis employing HMPA as a ligand, facilitating the development of catalytic Sm(II) 5-<i>exo</i>-<i>trig </i>ketyl olefin cyclization reactions.

Activated carbon from molasses efficiency for Cr(VI), Pb(II) and Cu(II) adsorption: A mechanistic study

2019 ◽  
Author(s):  
Chem Int
Keyword(s):  
Activated Carbon ◽  
Phosphoric Acid ◽  
Sugar Industry ◽  
Chemical Activation ◽  
High Surface ◽  
High Surface Area ◽  
Mechanistic Study ◽  
Acid Mixture ◽  
Maximum Adsorption Capacity ◽  
Good Potential

Activated carbon was prepared from molasses, which are natural precursors of vegetable origin resulting from the sugar industry. A simple elaboration process, based on chemical activation with phosphoric acid, was proposed. The final product, prepared by activation of molasses/phosphoric acid mixture in air at 500°C, presented high surface area (more than 1400 m2/g) and important maximum adsorption capacity for methylene blue (625 mg/g) and iodine (1660 mg/g). The activated carbon (MP2(500)) showed a good potential for the adsorption of Cr(VI), Cu(II) and Pb(II) from aqueous solutions. The affinity for the three ions was observed in the following order Cu2+ Cr6+ Pb2+. The process is governed by monolayer adsorption following the Langmuir model, with a correlation coefficient close to unity.

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