Evaluation of a quasi-dimeric eugenol derivative as repellent against the stored grain insect pest Sitophilus oryzae ( Coleoptera Curculionidae ) was written by Abenaim, Linda;Mandoli, Alessandro;Venturi, Francesca;Bedini, Stefano;Conti, Barbara. And the article was included in Pest Management Science in 2022.Quality Control of 4-Hydroxy-3-methoxyphenethanol The following contents are mentioned in the article:
Essential oils (EOs) and their chem. components are often proposed as an alternative to synthetic pesticides for pest control of foodstuff insect pests. However, their low persistence and strong, spicy odor, make them poorly suitable for use to protect food. Modification of the EOs components mols. increases their mol. weight and reduce their volatility. However, the effectiveness of such modified mols. has, so far, not been tested against stored food insect pests. In this study, the intensity and the duration of the repellence against the insect pest Sitophilus oryzae of a recently synthesized quasi-dimeric eugenol derivative (ED) (C18H20O4) were compared to those of eugenol and three eugenol related compounds The hypothesis tested was that by its higher mol. weight and two functional groups the ED would overcome the low persistence and strong and spicy odor drawback of eugenol without compromising the repellence against insects. The insect behavioral tests showed a greater repellence and persistence of ED than eugenol and the three eugenol related compounds against S. oryzae. The sensory anal. of ED by panel test indicated that ED is significantly less odorous than eugenol without any spicy nor balsamic nuances in its smell profile. Because of its high repellence against insects and its low smell intensity for humans, ED could represent a valid repellent for the control of foodstuffs insect pests. 2022 The Authors. Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chem. Industry. This study involved multiple reactions and reactants, such as 4-Hydroxy-3-methoxyphenethanol (cas: 2380-78-1Quality Control of 4-Hydroxy-3-methoxyphenethanol).
4-Hydroxy-3-methoxyphenethanol (cas: 2380-78-1) belongs to ethers. Esters are widespread in nature and are widely used in industry. In nature, fats are in general triesters derived from glycerol and fatty acids. Esters are responsible for the aroma of many fruits. Acyl chlorides and acid anhydrides alcoholysis is another way to produce esters. Acyl chlorides and acid anhydrides react with alcohols to produce esters. Anydrous conditions are recommended since both acyl chlorides and acid anhydrides react with water.Quality Control of 4-Hydroxy-3-methoxyphenethanol
Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem