Rapid synthesis of sulfone derivatives as potential anti-infectious agents
摘要:
An original one-pot microwave reaction was developed for the synthesis of sulfone derivatives as new potent antimicrobial agents. This ecofriendly methodology conducted in 30 min led to desired products with good yields. The sulfones (4a and 4b) were obtained via the reaction of 3a with the corresponding halo-derivatives in the presence of sodium hydride.All compounds were tested for their antibacterial and antifungal activities against four bacterial strains (two gram positive, and two gram negative ones) and two yeasts. The disk diffusion method has shown an interesting antibacterial activity for seven compounds (3b-g and 4b) against Staphylococcus attreus. Among these seven compounds, five derivatives (3b-e and 3g) showed activity against Candida tropicalis. (c) 2007 Elsevier Masson SAS. All rights reserved.
Microwave-assisted manganese(III) acetate based oxidative cyclizations of alkenes with β-ketosulfones
作者:Christophe Curti、Maxime D. Crozet、Patrice Vanelle
DOI:10.1016/j.tet.2008.10.080
日期:2009.1
The microwave-assisted synthesis of 5-(4-nitrophenyl)-2-phenyl-4-(phenylsulfonyl)-2,3-dihydrofuran (5a) was performed via manganese(Ill) acetate based oxidative cyclization of 1-(4-nitrophenyl)-2(phenylsulfonyl)ethanone (3a) with vinylbenzene (4a). This new protocol was applied to four sulfone derivatives (3a-d), using vinylbenzene (4a) and diphenylethene (4b), affording a series of 2,3-dihydrofurans (5a-d, 6a-d) in moderate to good yields (26-55%). Similar methodology, applied on allylbenzene (4c), surprisingly, led to dehydronaphthalene derivatives (7a-d) in moderate yields. The unexpected mechanism and the role of allylbenzene (4c) are herein discussed. (C) 2008 Elsevier Ltd. All rights reserved.
Naidu, M. S. R.; Naidu, R. Ravi, Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1997, vol. 36, # 1, p. 99 - 100
作者:Naidu, M. S. R.、Naidu, R. Ravi
DOI:——
日期:——
FERDINAND G.; JEBLICK W.; SCHANK K., J. LIEBIGS ANN. CHEM. <JLAC-BF>, 1976, NO 9, 1713-1726
作者:FERDINAND G.、 JEBLICK W.、 SCHANK K.
DOI:——
日期:——
Ferdinand,G. et al., Justus Liebigs Annalen der Chemie, 1976, p. 1713 - 1726
作者:Ferdinand,G. et al.
DOI:——
日期:——
Rapid synthesis of sulfone derivatives as potential anti-infectious agents
An original one-pot microwave reaction was developed for the synthesis of sulfone derivatives as new potent antimicrobial agents. This ecofriendly methodology conducted in 30 min led to desired products with good yields. The sulfones (4a and 4b) were obtained via the reaction of 3a with the corresponding halo-derivatives in the presence of sodium hydride.All compounds were tested for their antibacterial and antifungal activities against four bacterial strains (two gram positive, and two gram negative ones) and two yeasts. The disk diffusion method has shown an interesting antibacterial activity for seven compounds (3b-g and 4b) against Staphylococcus attreus. Among these seven compounds, five derivatives (3b-e and 3g) showed activity against Candida tropicalis. (c) 2007 Elsevier Masson SAS. All rights reserved.