Ngonye Keroletswe

Fatty Acid Composition and Antimicrobial Activity of Baphia massaiensis Seed Oil

Ngonye Keroletswe, Ofentse Mazimba, Runner R. T. Majinda & Ishmael Masesane · Journal of Complementary and Alternative Medical Research · 2017

Aims: The seed oil composition of Baphia massaiensis seeds was determined using 1H NMR and GC-MS techniques. The seed oil was also screened for antimicrobial activity. Study Design: The study was designed to determine Baphia massaiensis seed oil fatty acid composition and antimic...

Open access Research Article 10.9734/JOCAMR/2017/32553

Investigation of the H3PO4-Promoted Reaction of Benzaldehydes, Ethyl Acetoacetate or Ethyl Cyanoacetate or Malononitrile in the Presence of Urea as a Route to Pyrimidin-2-ones and 2-Iminochromenes

Ishmael B. Masesane, Ngonye Keroletswe & Runner R. Majinda · International Research Journal of Pure and Applied Chemistry · 2015

The H3PO4-promoted reactions of benzaldehydes, active methylene compounds and urea are reported. Benzaldehydes, ethyl acetoacetate and urea react in the presence of H3PO4 to give substituted pyrimidin-2-ones in 49-84% yields. The three-component reaction failed when either ethyl...

Open access Research Article 10.9734/IRJPAC/2015/20189

Flavans: Synthetic Strategies: A Review

Ofentse Mazimba & Ngonye Keroletswe · International Research Journal of Pure and Applied Chemistry · 2015

Flavans consist of the 2-phenylchroman structural unit found naturally in the plant kingdom. They are important compounds due to their various pharmacological properties, such as anticarcinogenic, anti-inflammatory, antioxidant, antimalarial, antiviral properties and chemoprevent...

Open access Research Article 10.9734/IRJPAC/2015/17422