Results 71 to 80 of about 928 (176)

Synthesis, Characterization and Fluorescent Property Evaluation of 1,3,5-Triaryl-2-pyrazolines

Molecules, 2011
A series of 1,3,5-triaryl-2-pyrazolines was synthesized by dissolving the corresponding 4-alkoxychalcones in glacial acetic acid containing a few drops of concentrated hydrochloric acid.
Asghar Abbas, Aurangzeb Hasan, Muhammed Nadeem Akhtar   +2 more
doaj   +1 more source

A Convenient and Efficient Protocol for the Synthesis of 1,3,5-Triaryl-2-pyrazolines in Acetic Acid under Ultrasound Irradiation

E-Journal of Chemistry, 2012
1,3,5-Triaryl-2-pyrazolines were synthesized in acetic acid in high yields within 60-180 min under ultrasound irradiation at room temperature.
Zhi-Ping Lin, Ji-Tai Li
doaj   +1 more source

An improved synthesis of 1,3,5-triaryl-2-pyrazolines in acetic acid aqueous solution under ultrasound irradiation

Beilstein Journal of Organic Chemistry, 2007
BackgroundPyrazoline derivatives have been found to possess a broad spectrum of biological activities. Among various pyrazoline derivatives, 2-pyrazolines seem to be the most frequently studied. A variety of methods have been reported for the preparation
Ji-Tai Li, Xiao-Hui Zhang, Zhi-Ping Lin
doaj   +1 more source

Assessing the effect of N-oxidation on the mutagenicity of 1-pyrazolines using the Ames assay. [PDF]

Toxicol Res (Camb), 2023
Inami K, Miura M, Yoshida M, Mochizuki M.   +3 more
europepmc   +1 more source

(3+2)-Cycloadditions of Levoglucosenone (LGO) with Fluorinated Nitrile Imines Derived from Trifluoroacetonitrile: An Experimental and Computational Study. [PDF]

Molecules, 2023
Mlostoń G, Urbaniak K, Palusiak M, Witczak ZJ, Würthwein EU.   +4 more
europepmc   +1 more source

Development of novel antimicrobial agents: investigating the efficacy of 1,3,5-Triphenyl-2-pyrazoline derivatives [PDF]

Health Science Monitor
Background & Aims: In this research, a novel series of heterocyclic compounds containing pyrazoline nuclei was synthesized in two steps. Materials & Methods: In the first step, chalcones were prepared using the Claisen-Schmidt reaction between ...
Sevda Afzal-Ahangaran, Yaeghob Sharifi, Maryam Allahyari-Devin   +2 more
doaj  

Visible-light-induced [3+2] cycloadditions of donor/donor diazo intermediates with alkenes to achieve (spiro)-pyrazolines and pyrazoles. [PDF]

Chem Sci, 2023
Zhang Y, Li Y, Ni SF, Li JP, Xia D, Han X, Lin J, Wang J, Das S, Zhang WD.   +9 more
europepmc   +1 more source

In silico prediction and in vitro assessment of novel heterocyclics with antimalarial activity. [PDF]

Parasitol Res, 2023
Orozco MI, Moreno P, Guevara M, Abonia R, Quiroga J, Insuasty B, Barreto M, Burbano ME, Crespo-Ortiz MDP.   +8 more
europepmc   +1 more source

Syntheses of New Pyrazoline Derivatives

Chemical and Pharmaceutical Bulletin, 1968
HAYASHI, SEIGORO, FURUKAWA, MITSURU, YAMAMOTO, JUNKO, NISHIZIMA, YOKO, INOUE, KENGO   +4 more
openaire   +3 more sources

Design, Synthesis, and Evaluation of a New Series of 2-Pyrazolines as Potential Antileukemic Agents. [PDF]

ACS Omega, 2023
Altıntop MD, Cantürk Z, Özdemir A.
europepmc   +1 more source