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I can't figure out how to use -yl on organic nomenclature and how do I use it in nomenclature. Please explain everything about the use of -yl in nomenclature.
The "yl" refers to removing a hydrogen atom from a molecule making a univalent group.
To make butan-2-yl take a hydrogen atom off carbon 2:
Then butan-2-yl X would be
Required, but never shown