Results 151 to 160 of about 17,124 (205)

Isoxazoles I: Protonation of Isoxazole Derivatives in Aqueous Sulfuric Acid

Journal of Pharmaceutical Sciences, 1973
The protonation of 3-amino-5-methylisoxazole, 5-amino-3,4-dimethylisoxazole, sulfamethoxazole (N-sulfanilamido-5-methyl-3-isoxazole), and sulfisoxazole (N-sulfanilamido-3,4-dimethyl-5-isoxazole) in aqueous sulfuric acid was studied. The pKSH+ and log SH+/S or log SH2+2/SH+ values were determined by UV spectrophotometry.
R H, Manzo, M M, De Bertorello
openaire   +2 more sources

An Intercalating Isoxazole

Acta Crystallographica Section C Crystal Structure Communications, 1996
The title compound, ethyl 3-(9-anthryl)-5-methyl-4-isoxazolecarboxylate, C 21 H 17 NO 3 , possesses two planar ring systems that lie at 80° from coplanarity. The bond linking the two ring systems is 1.489 (3) A, indicating only partial conjugation between the two ring systems.
M. D. Mosher, N. R. Natale, A. Vij
openaire   +1 more source

Studies in isoxazole chemistry. IV. Isoxazoles via isoxazolines

Canadian Journal of Chemistry, 1970
4- or 5-Chloro- or cyanoisoxazoles, 5-chloromethylisoxazoles, and 5-methylisoxazoles were made by the 1,3-dipolar cycloaddition of nitrile oxides to α-halogeno- or α-alkoxyolefins. In the case of cis- and trans-1,2-dichloroethylene, (5a and b) the intermediate cis- and trans-4,5-dichloroisoxalines (6a and b) were isolated.
openaire   +1 more source

4.03 - Isoxazoles

2022
Isoxazoles, isoxazolines and isoxazolidines are a class of heterocyclic compounds having a remarkable number of applications and are very versatile building blocks in organic synthesis. The developments concerning the synthesis of the above monocyclic systems reported in the literature from 2007 to 2019 are reviewed.
Cordero, Franca M., Giomi, Donatella, Machetti, Fabrizio   +2 more
openaire   +1 more source

Developing Isoxazole as a Native Photo‐Cross‐Linker for Photoaffinity Labeling and Chemoproteomics

Angewandte Chemie - International Edition, 2022
Ke Cheng, Nan Ma, Hongyan Sun
exaly  

Isoxazole/Isoxazoline Skeleton in the Structural Modification of Natural Products: A Review

Pharmaceuticals, 2023
Pan Xinhui
exaly  

Application, Reactivity and Synthesis of Isoxazole Derivatives

Mini-Reviews in Organic Chemistry, 2021
Pramod Kulkarni, Pravin Mhaske
exaly  

Isoxazoles

1996
Murugan Sutharchanadevi, Ramiah Murugan
openaire   +1 more source

Isoxazole ring as a useful scaffold in a search for new therapeutic agents

European Journal of Medicinal Chemistry, 2017
Angelika Sysak, Bozena Obmińska-Mrukowicz   +1 more
exaly  

Antimicrobial, Antioxidant, and Anticancer Activities of Some Novel Isoxazole Ring Containing Chalcone and Dihydropyrazole Derivatives

Molecules, 2020
Srinath Nissankararao, Afzal Basha Shaik, Richie Bhandare   +2 more
exaly