Born Learning Academy continues to find teachable moments for young kids in everyday activities. INDEPENDENCE, Ky. â Taking a quick trip to the grocery store and measuring ingredients for a favorite recipe may seem like simple, run-of-the-mill tasks, but for parents with small children they can be teachable moments.
Piperonyl butoxide (PBO) is an organic compound used as a component of pesticide formulations. It is a waxy white solid. It is a synergist. That is, despite having no pesticidal activity of its own, it enhances the potency of certain pesticides such as carbamates, pyrethrins, pyrethroids, and rotenone. It is a semisynthetic derivative of safrole.
piperidine as catalyst, in ethanol (EtOH) at ambient temperature. Short reaction times, environmentally friendly procedure and excellent yields are the main advantages of this procedure, which makes it more economical than other environment-friendly methods. Keywords: 3,4-Dihydropyrano[3,2-c]chromenes, piperidine, ambient temperature Dihydropyrano[3,2-c]chromenes are very interesting compounds due to their biological and pharmaceutical