3213-94-3Relevant academic research and scientific papers
TBHP/TBAI–Mediated simple and efficient synthesis of 3,5-disubstituted and 1,3,5-trisubstituted 1H-1,2,4-triazoles via oxidative decarbonylation of aromatic aldehydes and testing for antibacterial activities
Agisho, Habtamu Abebe,Esatu, Habdolo,Hairat, Suboot,Zaki, Mehvash
supporting information, (2020/05/19)
The author has developed a simple, efficient and eco–friendly convenient general method for synthesis of 3,5–disubstituted–1,2,4–triazoles and 1,3,5–trisubstituted–1,2,4–triazoles from 3–monosubstituted–1,2,4–triazoles and 1,3–disubstituted–1,2,4–triazoles respectively using tetrabutylammonium iodide (TBAI) as catalyst and TBHP as oxidant under mid reaction conditions. This method provides structurally diverse 3,5–disubstituted 1,2,4–triazoes and 1,3,5––trisubstituted–1,2,4–triazoles in good to excellent yields. 3,5–Disubstituted 1,2,4–triazoes and 1,3,5––trisubstituted–1,2,4–triazoles derivatives are biologically and pharmaceutically active molecules, and therefore, this protocol could be of wide applications in medicinal chemistry and organic chemistry.
Synthetic method of asymmetric 1,2,4-triazole derivatives
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Paragraph 0100; 0101; 0102; 0103; 0104; 0105, (2017/07/26)
The invention provides a synthetic method of asymmetric 1,2,4-triazole derivatives. The synthetic method comprises the following steps: mixing amidine compound hydrochloride, amidoxime compounds, copper oxide and potassium carbonate, adding an organic solvent, and carrying out heating reaction under the condition of stirring to obtain a product; drying, separating and purifying to obtain the asymmetric 1,2,4-triazole derivatives. Compared with the prior art, the synthetic method provided by the invention has the following advantages that firstly, the synthetic method is carried out in the air atmosphere, so that the cost is low; secondly, no precious metals, strong base and organic oxidants are used, while the copper oxide is used as a catalyst, so that the cost is reduced; thirdly, amidine and nitrile are used as reaction raw materials, and the raw materials are easily obtained; fourthly, the synthetic method is high in efficiency and wide in application range, and is suitable for multiple substrate reactions.
Copper-catalyzed synthesis of 1,2,4-triazoles via sequential coupling and aerobic oxidative dehydrogenation of amidines
Xu, Hao,Jiang, Yuyang,Fu, Hua
supporting information, p. 125 - 129 (2013/02/23)
A convenient, efficient, and practical copper-catalyzed one-pot method for the synthesis of 1,2,4-triazoles has been developed via reactions of amidines. The procedure underwent sequential base-promoted intermolecular coupling (nucleophilic substitution) between two amidines and intramolecular aerobic oxidative dehydrogenation, and the inexpensive, convenient, and efficient method for the synthesis of 1,2,4-triazoles will attract much attention in academic and industrial research. Georg Thieme Verlag Stuttgart · New York.
SINGLE ENANTIOMER BETA-AGONISTS, METHODS FOR THE PRODUCTION THEREOF AND THE USE THEREOF AS MEDICATION
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Page/Page column 6, (2010/09/07)
The present invention relates to single enantiomer compounds of formula (1), where the moieties n, A, R1, R2, R3, m, and Y can have the meanings stated in the claims and in the description, methods for the production there
SMALL MOLECULE MODULATORS OF CELL ADHESION
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Page/Page column 29, (2009/12/05)
Compounds, particularly compounds having activity as modulators of cadherin-mediated cell adhesion having the following structure: or a pharmaceutically acceptable salt, stereoisomer or prodrug thereof, wherein R1, R2, R3,
DRUG COMBINATIONS FOR THE TREATMENT OF RESPIRATORY TRACT DISEASES
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, (2010/01/31)
The present invention relates to novel drug combinations which, besides one or more, preferably on compound of the general formula (1), wherein remainder n, A, R1, R2, and R3 can have the meanings given in the claims and in the description comprise at least one further active ingredient 2 and method for the production thereof and the use thereof as drugs.
Long-acting betamimetics for the treatment of respiratory complaints
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Page/Page column 7, (2008/06/13)
The present invention relates to compounds of formula 1, wherein n, A, R1, R2 and R3 may have the meanings specified in the description and claims, processes for preparing them and their use as pharmaceutical compositions, particularly as pharmaceutical compositions for the treatment of respiratory complaints.
3-Hydroxymethyl-4-hydroxy-phenyl-derivatives for the treatment of respiratory diseases
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Page/Page column 5, (2008/06/13)
The present invention relates to the use of the compounds of general formula 1 wherein the groups R1, X and Y may have the meanings given in the claims and in the specification, for preparing a pharmaceutical composition for the treatment of CO
New long acting beta-2 agonists and their use as medicaments
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Page/Page column 5, (2010/02/13)
A compound of formula 1 wherein the groups R1, R2, R3, R4 and n may have the meanings given in the claims and in the specification, and methods for preparing a pharmaceutical composition for the treatment of inf
3-HYDROXYMETHYL-4-HYDROXY-PHENYL DERIVATIVES FOR THE TREATMENT OF RESPIRATORY ILLNESSES
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Page/Page column 12, (2008/06/13)
The invention relates to the use of compounds of general formula 1 wherein the groups R1, X and Y have the designations cited in the claims and in the description, for producing a medicament for treating COPD (chronic obstructive pulmonary disease). The invention also relates to novel compounds of general formula 1, and to methods for the production thereof.
