They are all transliterated from English, and then a grass prefix is added to indicate aromatic hydrocarbons. Benzene, naphthene, anthracene, phenanthrene. Before the 20th century, organic matter lacked some systematic nomenclature, and was generally named by the author in the paper. After all, there is no concept of benzene ring, how to name it systematically = _ = Of course, people usually have etymological basis when naming it. Benzene is made from benzoic acid (also called benzoic acid) by Mitscherlich, and benzoic acid is made from benzoin resin. Benzoin was originally a spice in the15th century, and was called "Luban Jarvis" by Arabs (a spice from Java), and then spread to Europe. Then, you should know that most parts of Europe pronounce Z as ts, and Rome and Greece distinguish aspirated sounds, so they are similar in theory. Naphthalene is taken from "naphtha" in English. This word is Naft in ancient Greece and Persia, which generally refers to oil. Anthracite comes from hard coal in English, and the word comes from the Greek word "coal" (? νθρακα? Phenanthrene is actually synthesized from phenyl and anthracene. The Frenchman Auguste Laurent synthesized benzene in Mitscherlich three years later. He named it phène, which was later used as the root of "phenyl". The word phène comes from the Greek Phaino, which means to shine, mainly to describe its burning.
When I first saw benzene, I was still a socialist successor with integrity. Until one day, I woke up from my sleep with a chemistry book on my stomach and saw the benzene ring structure in a daze. Suddenly, I felt a sigh in my head. Chinese characters are really profound, and I can call them out so tacitly, such as Ben and clam. At that time, I had the potential of the evil demon king.