Friday, 8 July 2016

nomenclature - Naming system -"ylene"


There are various compounds which have common names that end in "ylene", like acetylene and ethylene. However, how come acetylene is an alkyne whereas ethylene is an alkene. Both of these have the same "ylene" ending though. What is the cause for this discrepancy?



Answer



These are common names, and predate our knowledge about bonds. My guess is that the "ylene" comes from reduction -- reducing ethyl alcohol gives ethylene, reducing acetic acid gives acetylene.


No comments:

Post a Comment

readings - Appending 内 to a company name is read ない or うち?

For example, if I say マイクロソフト内のパートナーシップは強いです, is the 内 here read as うち or ない? Answer 「内」 in the form: 「Proper Noun + 内」 is always read 「ない...