Results 31 to 40 of about 7,064,890 (397)

Combining pot, atom and step economy (PASE) in organic synthesis. Synthesis of tetrahydropyran-4-ones [PDF]

, 2007
The combination of pot, atom and step economy (PASE) in the synthesis of organic molecules of medium complexity can lead to a significant 'greening' of a synthetic route.
Clarke, Paul A., Martin, William H. C., Santos, Soraia   +2 more
core   +1 more source

Antioxidant activity of 2,6-dimethyl-3,5-dialkoxycarbonyl-1,4-dihydropyridines in metal-ion catalyzed lipid peroxidation

Czech Journal of Food Sciences, 2001
Antioxidants with 1,4-dihydropyridine structure were investigated as a less harmful alternative to synthetic phenolic antioxidants in liposomes under conditions simulating food storage.
G. Tirzitis, D. Tirzite, Z. Hyvonen
doaj   +1 more source

Inorganic–organic nanocomposites of CdSe nanocrystals surface-modified with oligo- and poly(fluorene) moieties [PDF]

, 2011
We report a facile grafting-from strategy towards the synthesis of inorganic–organic composites of semiconductor nanocrystals and wide-bandgap polymers.
Adamczyk, Sylwia, Elsner, Victoria, Holder, Elisabeth, Kanelidis, Iohannis, Lenkeit, Daniel, Lutich, Andrey A., Pelz, Simon, Rodríguez-Fernández, Jessica, Rogach, Andrey L., Stewart, Raphaela M., Susha, Andrei S., Theissmann, Ralf, Vaneski, Aleksandar   +12 more
core   +1 more source

Dendritic supports in organic synthesis [PDF]

Reviews in Molecular Biotechnology, 2002
An overview is presented of the recent developments in the use of dendritic supports in organic synthesis. Examples are presented of the application of dendritic supports in both liquid- and solid-phase organic synthesis. In liquid-phase synthesis, soluble dendrimers are used as the substrate support, while in solid-phase synthesis, 'dendronized ...
Klein Gebbink, R.J.M., Kruithof, C.A., van Klink, G.P.M., van Koten, G.   +3 more
openaire   +4 more sources

Development of Self-Assembling bis-1,4-Dihydropyridines: Detailed Studies of Bromination of Four Methyl Groups and Bromine Nucleophilic Substitution

Molecules, 2023
One of the most important steps in the synthesis of 1,4-dihydropyridine (1,4-DHP) amphiphiles is the bromination of methyl groups in positions 2 and 6 of the entire ring.
Martins Kaukulis, Martins Rucins, Davis Lacis, Aiva Plotniece, Arkadij Sobolev   +4 more
doaj   +1 more source

Morphology control through the synthesis of metal-organic frameworks.

Advances in Colloid and Interface Science, 2023
Designable morphology and predictable properties are the most challenging goals in material engineering. Features such as shape, size, porosity, agglomeration ratio significantly affect the final properties of metal-organic frameworks (MOFs) and can be ...
J. Łuczak, Malwina Kroczewska, M. Baluk, Jakub Sowik, P. Mazierski, A. Zaleska-Medynska   +5 more
semanticscholar   +1 more source

Origins of Organic Chemistry and Organic Synthesis

European Journal of Organic Chemistry, 2022
AbstractThe words organic and synthesis originate with Aristotle (meaning ‘instrumental’ and ‘put together’, respectively) but had different meanings over time. The iatrochemists prepared numerous pharmaceutical remedies in the 1600s but had no concept of organic chemistry.
openaire   +2 more sources

Direct Aminolysis of Ethoxycarbonylmethyl 1,4-Dihydropyridine-3-carboxylates

Molecules, 2015
The ethoxycarbonylmethyl esters of 1,4-dihydropyridines were directly converted into carbamoylmethyl esters in the presence of 1,5,7-triazabicyclo[4.4.0]dec-5-ene (TBD) in good to excellent yields under mild conditions.
Brigita Vigante, Martins Rucins, Aiva Plotniece, Karlis Pajuste, Iveta Luntena, Brigita Cekavicus, Egils Bisenieks, Rufus Smits, Gunars Duburs, Arkadij Sobolev   +9 more
doaj   +1 more source

Synthesis of Fluorinated 3,6-Dihydropyridines and 2-(Fluoromethyl)pyridines by Electrophilic Fluorination of 1,2-Dihydropyridines with Selectfluor^®

Molecules, 2020
New fluorinated 3,6-dihydropyridines were obtained by the electrophilic fluorination of 1,2-dihydropyridines with Selectfluor®. These 3-fluoro-3,6-dihydropyridines were easily converted to corresponding pyridines by the elimination of hydrogen fluoride ...
Nadiia V. Pikun, Arkadij Sobolev, Aiva Plotniece, Martins Rucins, Brigita Vigante, Marina Petrova, Ruslan Muhamadejev, Karlis Pajuste, Yuriy G. Shermolovich   +8 more
doaj   +1 more source

Olaparib Conjugates with Selenopheno[3,2-c]quinolinone Inhibit PARP1 and Reverse ABCB1-Related Multidrug Resistance

Pharmaceutics, 2022
The restoration of the efficacy of antitumor medicines is a cornerstone in the combat with multidrug resistant (MDR) cancers. The overexpression of the ABCB1 transporter is a major obstacle to conventional doxorubicin therapy.
Marina Makrecka-Kuka, Jelena Vasiljeva, Pavels Dimitrijevs, Pavel Arsenyan   +3 more
doaj   +1 more source