• acid
  • As a versatile platform chemical, construction of microbial catalysts for free octanoic acid production from biorenewable feedstocks is a promising alternative to existing petroleum-based methods. (springer.com)
  • In this study, nitric acid (HNO3) was evaluated as an acid catalyst for rice straw pretreatment, and, after neutralization, as a sole nitrogen source for subsequent fermentation. (biomedsearch.com)
  • reactions
  • This procedure constitutes an attractive and environmentally favorable alternative to well-established asymmetric hydrogenation reactions with precious-metal catalysts. (wiley.com)
  • presence
  • 41.05% of dichloromethane, 49.45% of chloroform and 37.84% of carbon tetrachloride were degraded by this catalyst in the presence of UV light (6 W, 354 nm), irradiated for 90 minutes, and oxidized VOCs gases were analyzed using GC-FID. (scientiairanica.com)
  • A broad range of ketimines underwent enantioselective hydrogenation in the presence of a chiral Brønsted catalyst and a well-defined nonchiral iron catalyst (see scheme). (wiley.com)