ABITEC Abitec Corporation combines synthesis and analytical expertise in organic compounds with a high quality manufacturing operations. Whether you want to achieve better performance, a lower cost, or a greener profile, we have the tools you need. HAIFA Haifa Group is an Israel-based multinational corporation and a global leading supplier of potassium nitrate for agriculture and industry, specialty plant nutrients and food phosphates. Fuller has been a leading global industrial adhesives manufacturer.
Organic Chemistry Study Tips: Reaction Maps by James This time of year one of the most common problems students come to me with is how to do synthesis problems.
Maps are easy to understand — they make distances and relationships concrete. Take a map of Texas. How can you get there?
A map helps you see the possibilities. At one level of organic synthesis you can think of functional groups as being like cities on a map, and reactions that link them are like roads.
You can build reaction maps for other functional groups. On the other hand, other functional groups are a little like Laredo: Of all the functional groups you learn about, ethers fall into this category the best.
If you identify the functional groups involved, it can help you to identify what types of reactions are possible for getting you from your starting point to the destination.
Go back to the reaction map. Look for the tertiary alcohol as a product. How do you get there? One way is from a ketone, in a Grignard reaction.
Then think backwards from there — how to get there? One way is to oxidize a secondary alcohol. And if you trace back secondary alcohols, you can get there from the aldehyde and a Grignard reaction. Here, the problem is identifying what alkyl groups to use in each of the two Grignard reactions.
And yes, in the lab, chemists will choose the shortest, most efficient route from one starting material to the final product. Efficiency is a goal for later.Fischer Esterification Fischer-Speier Esterification. The Lewis or Brønstedt acid-catalyzed esterification of carboxylic acids with alcohols to give esters is a typical reaction .
DAT Practice Test Organic Chemistry Solutions. The official ADA DAT practice tests are one of the best ways to study for the DAT. The DAT is available for free online.
Sigma-Aldrich offers Sigma-Aldrich-M, Maleic acid for your research needs. Find product specific information including melting point, density, pKa, uses, CAS, MSDS, protocols and references.
Water has many unique properties that are important to life on Earth. In this lesson we will explore the thermal properties of water to gain a better understanding of how they support life. What Is Biodiesel?
Biodiesel is an alternative fuel similar to conventional or ‘fossil’ diesel. Biodiesel can be produced from straight vegetable oil, animal oil/fats, tallow and waste cooking oil. Esterification is a straightforward reaction that utilizes several key techniques in synthetic organic chemistry.
One direct approach, known as the Fischer esterification reaction, involves the acid-catalyzed condensation of an alcohol and a .