Experts and advanced students often take for granted a lot of organic chemistry terms. We use these terms arbitrarily and this often confuses the heck out of newcomers in organic chemistry (a.k.a. new students).

We don’t do this on purpose. We do this simply because we’re too familiar with these terms and forget that we were once in your shoes. For these reasons, I would like to explain the common terms that organic chemists often use that new students often find confusing.

This is different from the OChem Lingo page, where I only give the terms and their definitions. Here, I would like to actually explain the common confusion between terms with real examples.

In addition to confusingly-similar terms, I would also like to explain various concepts that students may find confusing. These may seem trivial for some people, but trust me, there are students out there who are in need of these explanations.

Difference between Phenyl, Phenylene, Phenol, Benzyl, Benzil, Benzoyl, and Aryl

Enantiomer, Diastereomer, Epimer, Anomer, Atropoenantiomer, and Atropodiastereomer