Browsing by Author "Mazimba, O."
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Antioxidant and antibacterial constituents from Morus nigra
Mazimba, O.; Majinda, R.R.T.; Motlhanka, D. (Academic Journals, http://www.academicjournals.org/ajpp, 2011-06)The objective of this study was to isolate and characterize the constituents of the local Morus nigra L. (Black mulberry), to compare its constituents with other studied Mulberries and to evaluate its antioxidative and ... -
An efficient synthesis of flavans from salicylaldehyde and acetophenone derivatives
Mazimba, O.; Masesane, I.B.; Majinda, R.R. (Elsevier Science Ltd, http://www.elsevier.com/locate/tetlet, 2011)An efficient total synthesis of flavans from the reactions of salicylaldehyde and acetophenone derivatives is reported. The synthesis involves preparation of chalcones through an aldol reaction followed by reduction of ... -
Tylosema esculentum extractives and their bioactivity
Mazimba, O.; Majinda, R.R.; Modibedi, C.; Masesane, I.B.; Cencicˇ, A.; Chingwaru, W. (Elsevier Science Ltd, http://www.elsevier.com/locate/bmc, 2011)The investigation of Tylosema esculentum (Morama) husks, cotyledons, and tuber yielded griffonilide 2, compound 1, griffonin 3, gallic acid 4, protocatechuic acid 5, b-sitosterol 6, behenic acid 7, oleic acid 8, sucrose ... -
An unexpected 1,2-hydride shift in phosphoric acid-promoted cyclodimerization of styrene oxides under solvent-free conditions. A synthetic route towards 2,4-disubstituted 1,3-dioxolanes
Mazimba, O.; Majinda, R.R.; Masesane, I.B. (Elsevier Science Ltd, http://www.elsevier.com/locate/tetlet, 2009)A 1,2-hydride shift in the phosphoric acid-promoted cyclodimerization of styrene oxide and its chloro derivatives under solvent-free conditions leading to 2,4-disubstituted 1,3-dioxolanes is described. Methoxy substituents ...