Results 1 to 10 of about 85,474,312 (231)

The single Fe atoms and DDQ catalyst system for the aerobic dehydrogenation of dihydropyridines and dihydroquinazolinones [PDF]

Scientific Reports
Single-atom nanozymes (SAzymes) made of iron show great potential as artificial enzymes due to their consistent active sites closely resembling the active centers found in natural enzymes. They can be produced from accessible and affordable raw materials,
Hamzeh Veisi, Amin Rostami
doaj   +2 more sources

Enantioselective Synthesis of cis-Hydroisoquinolines via Cross-[4 + 2] Cycloadditions of 2‑Pyrones and Dihydropyridines [PDF]

JACS Au
Jun-Xiong He, Qi-Tao Lu, Kui Tan, Yun-Yan Tian, Yu-Qiu Cai, Nikola Topolovčan, Quan Cai   +6 more
doaj   +2 more sources

SYNTHESIS AND PRELIMINARY ALKYLATING ACTIVITIES OF CERTAIN NEW 1,4-DIHYDROPYRIDINES, PYRIDINIUM SALTS AND 2,7-DIAZABICYCLO [4.1.0] HEPT-3-ENES [PDF]

Bulletin of Pharmaceutical Sciences. Assiut University, 1993
3-Substituted-1-{2-chloro- or [2-bis (2-chloroethyl)amino]}ethyl-1,4-dihydropyridines 3 and 6 were prepared by reduction of the corresponding pyridinium chlorides 2 and 5 with sodium dithionite in alkaline medium.
Nawal El-Koussi, Mahmoud El-Gendy, Abdel-Alim Abdel-Alim, Hassan Farag   +3 more
doaj   +1 more source

Data for the synthesis and characterisation of 2,6-di(bromomethyl)-3,5-bis(alkoxycarbonyl)-4-aryl-1,4-dihydropyridines as important intermediates for synthesis of amphiphilic 1,4-dihydropyridines

Data in Brief, 2020
This data file describes the synthetic protocol for preparation of the original 2,6-di(bromomethyl)-3,5-bis(alkoxycarbonyl)-4-aryl-1,4-dihydropyridines. In total, 6 unpublished compounds were obtained and characterised.
Martins Rucins, Klavs Pajuste, Arkadij Sobolev, Mara Plotniece, Nadiia Pikun, Karlis Pajuste, Aiva Plotniece   +6 more
doaj   +1 more source

Synthesis new fluorinated 4-phenyl-1,4-dihydropyridine derivatives, as perspective antiarrhythmic and antihypertensive drugs

Results in Chemistry, 2023
Derivatives of dihydropyridines are promising agents for research, as they have high biological activity. Their low toxicity and polytargeted properties make it possible to create new derivatives and identify new biological activity. As part of this work,
Arkadiy Bryzgalov, Tatiana Tolstikova, Borislav Koshcheev, Alexander Maksimov   +3 more
doaj   +1 more source

Intramolecular hydrogen bonds in 1,4-dihydropyridine derivatives [PDF]

Royal Society Open Science, 2018
1,4-Dihydropyridine (1,4-DHP) derivatives have been synthesized and characterized by 1H, 13C, 15N nuclear magnetic resonance (NMR) spectroscopy, secondary proton/deuterium 13C isotope shifts, variable temperature 1H NMR experiments and quantum-chemical ...
M. Petrova, R. Muhamadejev, B. Vigante, G. Duburs, Edvards Liepinsh   +4 more
doaj   +1 more source

Synthesis and anticholinesterase activity of a novel series of acetazolamide condensed 1,4-dihydropyridines

Carbon Resources Conversion, 2019
A novel Acetazolamide condensed 1, 4-dihydropyridines was set up by treating of N-(5-acetamido-1, 3, 4-thiadiazol-2-ylsulfonyl)-3-oxobutanamide with an aryl aldehyde and 25–30% alkali with sight amount of barium nitrate as a catalyst. Confirmation of the
Mudduluru Niranjan Babu, Karthikeyan Elumalai, Sivaneswari Srinivasan, Kalpana Eluri, Manogaran Elumalai, Srinivasan Sivannan   +5 more
doaj   +1 more source

New synthetic method for the synthesis of 1,4-dihydropyridine using aminated multiwalled carbon nanotubes as high efficient catalyst and investigation of their antimicrobial properties

Journal of Saudi Chemical Society, 2018
Synthesis of 1,4-dihydropyridines in the presence of aminated multiwalled carbon nanotubes and investigation into their antimicrobial properties were carried out.Amino functionalized carbon nanotubes were prepared through a facile, clean and safe ...
Roya Mahinpour, Leila Moradi, Zohreh Zahraei, Nafiseh Pahlevanzadeh   +3 more
doaj   +1 more source

TiCl2/Nano-γ-Al2O3 as a Novel Lewis Acid Catalyst for Promotion of One-pot Synthesis of 1,4-dihydropyridines [PDF]

Journal of Nanostructures, 2018
Synthesis of organic compounds using nano-catalysts is more and more attention due to the numerous advantages such as cost-effectiveness, high catalytic activity, ease of product separation, recovery of the catalyst, repeated recycling potential and good
Bi Bi Fatemeh Mirjalili, Abdolhamid Bamoniri, Leila Asadollah Salmanpoor   +2 more
doaj   +1 more source

Investigation of Catalytic Activity of Pillared-layer Ni (II) Metal-Organic Framework Derived NiO Nanoparticles for Aromatization of Hantzsch 1,4-Dihydropyridines [PDF]

Journal of Sciences, Islamic Republic of Iran, 2020
The pillared-layer metal-organic framework of Ni2(BTEC)(bipy)3.3DMF.2H2O  (BTEC = 1,2,4,5-benzenetetracarboxylate; bipy = 4,4́-bipydine; DMF =N,Ń-dimethylformamide) was prepared, characterized and used as a precursor for preparation of NiO nanoparticles.
Zeinab Asgharpour, Faezeh Farzaneh
doaj   +1 more source