#-ene
-ene
Suffix used in organic chemistry
The suffix -ene is used in organic chemistry to form names of organic compounds where the -C=C- group has been attributed the highest priority according to the rules of organic nomenclature. Sometimes a number between hyphens is inserted before it to say that the double bond is between that atom and the atom with the next number up. This suffix comes from the end of the word ethylene, which is the simplest alkene. The final "-e" disappears if it comes before by a suffix that starts with a vowel, e.g. "-enal", which is a compound that contains both a -C=C- bond and an aldehyde functional group. If the other suffix starts with a consonant or "y", the final "-e" remains, e.g. "-enediyne"
Fri 5th
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