Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Guy Crépin Enoua"'
Autor:
Guy Crépin Enoua, Aristide H. W. Nakavoua, Victor N’goka, Tony Wheellyam Pouambeka, Prince Maho Diafouana Mahoungou, Narcisse Nicaise Obaya, Alain Brice Mbozo Vouidibio, Hubert Makomo, Robin Pascal Ongoka
Publikováno v:
Green and Sustainable Chemistry. 12:104-117
Autor:
Pierre Chalard, Aristide. H. W. Nakavoua, Guy Crépin Enoua, Gilles Figueredo, Stéphanie Manhan-Iniangas
Publikováno v:
Green and Sustainable Chemistry. 11:49-58
Skin aging is a process most often attributed to UV [1] and also to the use of creams and other cosmetic products low in antioxidant compounds [2]. Photochemically stable pepo Cucurbita oil can be used as an exogenous cosmetic supplement due to its h
Publikováno v:
Journal of Heterocyclic Chemistry. 51:E263-E275
4-Chlorocarbostyrils 3, 12, 17, 24, 26 with methoxy substituents in 6, 7, or 6,7-position react with potassium cyanide in a p-toluenesulfinate mediated reaction either to the highly fluorescent and stable 2-oxoquinoline-3,4-dicarbonitriles 6, 27, 29,
Publikováno v:
Journal of Heterocyclic Chemistry. 51:492-501
The sodium p-toluenesulfinate mediated reaction of potassium cyanide with 4-chlorocarbostyrils 8, 16, 18, and 23 gave in all cases the highly fluorescent and stable 6-methoxy-2-oxoquinoline-3,4-dicarbonitrile 9 (λexc 460 nm and λem 545 nm). This is
Publikováno v:
Journal of Heterocyclic Chemistry. 49:1415-1421
Highly fluorescent and stable 3-aryl-6-methoxy-2-oxoquinoline-4-carbonitriles 6 (λexc = 408 nm and λem = 510 nm) were synthesized starting from appropriate arylmalonates 2. Ring closure reaction with p-anisidine gave 4-hydroxyquinolones 3, which co
Publikováno v:
ChemInform. 44
Publikováno v:
Proceedings of The 15th International Electronic Conference on Synthetic Organic Chemistry.
Publikováno v:
ChemInform. 42
Publikováno v:
Proceedings of The 14th International Electronic Conference on Synthetic Organic Chemistry.
A comparative study of 6-methoxy-, 7-methoxy- and 6,7- dimethoxycarbostyrils revealed, that both, the 6 and the 7-methoxy group (green arrows), have different effects to the fluorescence properties of carbostyrils such as fluorescence wavelength, qua
Publikováno v:
Proceedings of The 13th International Electronic Conference on Synthetic Organic Chemistry.
Cyano functionalized 6-methoxyquinolin-2-ones were synthesized from malonic acid derivatives and p-anisidines in multistep reactions via 4-chloro-6-methoxyquinolin-2-ones. Introduction of cyano substituents resulted in 3,4-dicyano-6-methoxyquinolin-2