Results 21 to 30 of about 24,393 (218)

Application of MEA, TEPA and Morpholine Grafted NaY Zeolite as CO2 Capture [PDF]

Iranian Journal of Chemistry & Chemical Engineering, 2021
In the current research, NaY zeolite with a molar ratio of Si/Al=2.5 was grafted chemically with amines like monoethanolamine, tetraethylenepentamine, and morpholine.The modified NaY zeolites were characterized by XRD, FT-IR, TGA, EDAX, BET, FESEM, CO2 ...
Heshmatollah Alinezhad, Mohammadreza Fakhimi Abarghouei, Mahmood Tajbakhsh, Khodabakhsh Niknam   +3 more
doaj   +1 more source

Hexa-μ2-chlorido-μ4-oxido-tetrakis[(morpholine-κN)copper(II)] methanol disolvate

Acta Crystallographica Section E, 2014
In the title solvate, [Cu4(μ2-Cl)6(μ4-O)(C4H9NO)4]·2CH3OH, each Cu2+ ion in the tetranuclear complex has a trigonal–bipyramidal coordination arising from three bridging chloride ions in equatorial positions and the central μ4-O2− ion and morpholine N ...
Kateryna Gubina, Vladimir Ovchynnikov, Vladimir Amirkhanov   +2 more
doaj   +1 more source

Synthesis of Certain New Morpholine Derivatives Bearing a Thiazole Moiety

Sakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2019
Morpholineis a synthetic simple heterocyclic organic compound having characteristicfunctional groups of amine and ether. Feasible physicochemical properties(polarity and solubility), low cost and wide availability make it a suitablecandidate for the ...
Nurcan Berber
doaj   +1 more source

Morpholine

The German Senate Commission for the Investigation of Health Hazards of Chemical Compounds in the Work Area (MAK Commission) has re-evaluated the occupational exposure limit value (maximum concentration at the workplace, MAK value) and the pregnancy risk group of morpholine [110-91-8] considering also irritating and sensitizing effects.
Hartwig, Andrea, MAK Commission, Arand, Michael   +2 more
  +4 more sources

A Novel Class of “Super‐Strained” Spiro Heterocycles: Gateway to 1‐Azaspiro[3.3]heptane Derivatives, and Biological Validation

Angewandte Chemie, EarlyView.
A new class of “super‐strained” spiro heterocycles—spirocyclic 1‐azabicyclo[1.1.0]butanes—was synthesized via insertion of cyclobutane‐, oxetane‐, and azetidine‐containing sulfonium reagents into substituted azirines. The stability of this new class of compounds was studied.
Philipp Natho, Annarita Vicenti, Marco Colella, Francesco Pasca, Giuseppe Romanazzi, Mauro Niso, Carmen Abate, Ernesto Mesto, Emanuela Schingaro, Renzo Luisi   +9 more
wiley   +2 more sources

Synthesis of 3-Methyl-1-morpholin-4-ylmethyl-2,6-diphenylpiperidin-4-one

Molbank, 2009
This paper describes the synthesis of 3-methyl-1-morpholin-4-ylmethyl-2,6-diphenylpiperidin-4-one from 3-methyl-2,6-diphenylpiperidin-4-one. The synthesized compound was characterized by FT-IR, 1H NMR, EI-MS and elemental analysis.
Bathey R. Venkatraman, Samiappan Sathish Kumar, Helen P. Kavitha   +2 more
doaj   +1 more source

Speciation‐Controlled C–F Bond Functionalization Enabled by Zwitterionic Pnictinidenes

Angewandte Chemie, EarlyView.
Zwitterionic pnictinidenes turn C–F activation into C–X bond construction, enabling broad defluorinative functionalization of polyfluoro(hetero)arenes under mild conditions. Rather than following a metallomimetic Sb(I)/Sb(III) redox turnover, catalysis is redirected by ligand scrambling into a redox‐neutral manifold, revealing catalyst speciation as a ...
Irene Sánchez‐Sordo, Sergio Fernandez, Selwin Fernando, Diego M. Andrada, Oriol Planas   +4 more
wiley   +2 more sources

Molecularly Templated Buried Interfaces for Inverted Perovskite Solar Cells

Angewandte Chemie, EarlyView.
We demonstrate a molecularly matched buried interface between SAM and perovskite, enhancing adhesion and passivating defects. This optimized interface achieves 26.58% power conversion efficiency and 86.72% fill factor with exceptional operational stability in both large‐area and wide‐bandgap devices, thereby increasing efficiency and prolonging ...
Songyang Yuan, Quanrun Qiu, Huaiman Cao, Chengda Ge, Yiting Jiang, Gengyang Su, Lingyi Ke, Gengxin Du, Guangruixing Zou, Hui Liu, Guanhua Ren, Jing Wang, Nan Zhang, Yidan An, Qingduan Li, Ze Yu, Tao Jia, Yue‐Peng Cai, Shengjian Liu, Hin‐Lap Yip   +19 more
wiley   +2 more sources

Borylcyclopropanes: Synthetic Strategies and Applications

Angewandte Chemie, EarlyView.
Borylcyclopropanes (cyclopropanes bearing a boron substituent) sit at the intersection of two privileged frameworks in synthesis. This review provides the first exhaustive survey of their chemistry, spanning metal–carbene, nucleophilic cyclization, radical, hydroboration, and C─H activation routes, and documenting applications in medicinal chemistry ...
Aiza A. Butt, Joseph M. Ready
wiley   +2 more sources

Organocatalytic Enantioselective Addition of Malonates to Cyclic Imines: A Short Total Synthesis of Tetraponerine T‐1

Angewandte Chemie, EarlyView.
A stereoselective functionalization method of cyclic imines under mild organocatalytic conditions was developed. Bifunctional cinchona alkaloid catalysts combined with carefully optimized reaction conditions to suppress background reactivity enabled highly enantio‐ and diastereoselective addition reactions of malonates to cyclic imines.
Frederic Kölblin, Helma Wennemers
wiley   +2 more sources