Results 21 to 30 of about 586 (203)

Synthetic Strategies to Access Fluorinated Azoles. [PDF]

European J Org Chem
This review highlights recent synthetic strategies for introducing fluorine groups (mono‐, di‐, and trifluoromethylation) into 11 major azole classes, identifying research gaps to inform future innovations in materials science, medicinal chemistry, and biomedical research.
El-Gaber MKA, Djugovski M, Huang TY, Adhikari S, Roy S.   +4 more
europepmc   +2 more sources

Reactions with Hydrazonoyl Halides. Part 21. Reinvestigation of the Reactions of Hydrazonoyl Bromides with 1,1-Dicyanothioacetanilide [PDF]

Journal of Chemical Research, 1999
The reaction of C-(benzoyl) -N- (phenyl) formohydrazonoyl bromide with 1,1-dicyanothioacetanilide was reinvestigated. The product was elucidated on the basis of elemental analysis, spectral data and alternative synthesis. Also, reaction of hydrazonoyl halides with different thioanilides were investigated.
Abdou O. Abdelhamid, Hussein F. Zohdi, Nora M. Rateb   +2 more
openaire   +1 more source

Photoinduced 1,3‐Dipolar Cycloadditions of Cyclic Enones and 2,5‐Disubstituted Tetrazoles: An Unprecedented Pathway to Polysubstituted Pyrazolines and Pyrazoles

European Journal of Organic Chemistry, Volume 26, Issue 47, December 13, 2023., 2023
1,3‐dipolar cycloaddition of cyclic enones with 2,5‐disubstituted nitrile‐imines obtained by photochemical activation of 2,5‐diaryl substituted tetrazoles leads to the formation of novel pyrazoles and pyrazolines. Reactions can be monitored using UV‐vis absorption and emission measurements.
Chiraz Labassi, Nicolas Fournier‐Le Ray, Fabienne Gauffre, Jean‐Luc Fillaut, Rafik Gatri   +4 more
wiley   +1 more source

Synthetic Routes to Imidates and Their Applications in Organic Transformation: Recent Progress

European Journal of Organic Chemistry, Volume 26, Issue 39, October 16, 2023., 2023
Imidates are important organic intermediates used in several synthetic transformations towards N‐heterocycles, natural products and metal complexes with a potential catalytic effect. Herein, the recent synthetic approaches and diverse applications of imidates were categorized and summarized.
Andriani G. Chaidali, Ioannis N. Lykakis
wiley   +1 more source

Different Synthetic Methods for the Preparation of Triazolopyrimidines and their Biological Profile

ChemistrySelect, Volume 8, Issue 23, June 20, 2023., 2023
This review aims to give a broad overview of the synthetic methods, starting from aminotriazoles and pyrimidines, leading to heterocyclic systems containing the triazolopyrimidine ring and presenting the reactivity of these derivatives. Additionally, we have summarized the most important biological activities.
Achraf Hibot, Asmaa Oumessaoud, Abderrafia Hafid, Mostafa Khouili, Maria Dolors Pujol   +4 more
wiley   +1 more source

Recent developments in chemical reactivity of N,N-dimethylenamino ketones as synthons for various heterocycles [PDF]

, 2017
The current review presents recent progress in the utility of N,N-dimethyl enaminones as building blocks for a diverse range of acyclic, carbocyclic, five- and six-membered heterocyclic a broad range of heterocyclic and fused heterocyclic derivatives ...
Abbas, Abdallah, Abdallah, Abdallah, Abdel-Khalik, Abdel-Khalik, Abdel-Khalik, Abdel-Megid, Abdel-Motaleb, Abdel-Motaleb, Abdelhamid, Abdelhamid, AbdelKhalik, Abu-Shanab, Abu-Shanab, Adams, Agamy, Agamy, Al-Awadi, Al-Awadi, Al-Awadi, Al-Enezi, Al-Etaibi, Al-Mousawi, Al-Mousawi, Al-Mousawi, Al-Mousawi, Al-Mousawi, Al-Mousawi, Al-Mousawi, Al-Omran, Al-Omran, Al-Omran, Al-Omran, Al-Omran, Al-Omran, Al-Omran, Al-Omran, Al-Saleh, Al-Saleh, Al-Saleh, Al-Saleh, Al-Saleh, Al-Saleh, Al-Saleh, Al-Saleh, Al-Shiekh, Al-Shiekh, Al-Shiekh, Al-Zaydi, Al-Zaydi, Al-Zaydi, Al-Zaydi, Al-Zaydi, Al-Zaydi, Al-Zaydi, Alinezhad, Alinezhad, Almazroa, Anwer, Behbehani, Cao, Dawood, Domínguez, El-Desoky, El-Dusouqui, El-Taweel, Eldebss, Elghamry, Farghaly, Figueiredo, Gaber, Gaber, Gaber, Gaber, Gaber, Gaber, Gad-Elkareem, Gad-Elkareem, Ghozlan, Ghozlan, Ghozlan, Gomha, Gomha, Gomha, Gomha, Gomha, Greenhill, Hassanien, Hassanien, Hassanien, Hernández, Ho, Ho, Ho, Hughes, Ibrahim, Igarashi, Ingham, Jiang, Kandeel, Kantevari, Kascheres, Katritzky, Katritzky, Kenawi, Kepe, Kepe, Kim, Kirschbaum, Liu, Lue, Macba, Macba, Makhseed, Manley, Martins, Michael, Mokhtar, Mousawi, Moustafa, Mukhanova, Murphy, Negri, Nishimura, Nishiyama, Pichon, Pigge, Pleier, Raghunadh, Rasmussen, Reidlinger, Sabnis, Saleh, Salomone, Schenone, Shaaban, Shankaraiah, Sherif, Toche, Tois, Trautwein, Verma, Wan, Wan, Wan, Wan, Wan, Wang, Witherington, Xiang, Zhao, Zhou, Šimůnek   +153 more
core   +1 more source

Synthesis, Characterization and Molecular Docking of Novel Bioactive Thiazolyl-Thiazole Derivatives as Promising Cytotoxic Antitumor Drug

Molecules, 2015
Reactions of ethylidenethiocarbohydrazide with hydrazonoyl halides gave 1,3-thiazole or 1,3,4-thiadiazole derivatives according to the type of hydrazonoyl halides.
Sobhi M. Gomha, Taher A. Salaheldin, Huwaida M. E. Hassaneen, Hassan M. Abdel-Aziz, Mohammed A. Khedr   +4 more
doaj   +1 more source

Synthesis, in-silico studies, and biological evaluation of some novel 3-thiazolyl-indoles as CDK2–inhibitors

Results in Chemistry, 2023
The essential enzyme cyclin-dependent kinase 2 (CDK2) is a promising target for anticancer drug development due to its pivotal role in regulating the cell cycle. This study aimed to synthesize novel 3-thiazolyl-indole derivatives and assess their ability
Sobhi M. Gomha, Magdi E.A. Zaki, Deepika Maliwal, Raghuvir R.S. Pissurlenkar, Mohamed S. Ibrahim, Maher Fathalla, Ahmed M. Hussein   +6 more
doaj   +1 more source

C-Glycosyl 1,2,4-triazoles: Synthesis of the 3-β-d-glucopyranosyl-1,5-disubstituted and 5-β-d-glucopyranosyl-1,3-disubstituted variants [PDF]

, 2017
K
Páhi, András, Somsák, László, Szabó, Erzsébet Katalin   +2 more
core   +1 more source

Synthesis of Some New 1,3,4-Thiadiazole, Thiazole and Pyridine Derivatives Containing 1,2,3-Triazole Moiety

Molecules, 2017
In this study, 1-(5-Methyl-1-(p-tolyl)-1H-1,2,3-triazol-4-yl)ethan-1-one, was reacted with Thiosemicarbazide, alkyl carbodithioate and benzaldehyde to give thiosemicarbazone, alkylidenehydrazinecarbodithioate and 3-phenylprop-2-en-1-one-1,2,3-triazole ...
Nadia A. Abdelriheem, Ali M. M. Mohamed, Abdou O. Abdelhamid   +2 more
doaj   +1 more source