IUPAC naming for a sidechain with double bond?

krackers

As shown in this picture.

How would you do the naming for a sidechain that has double bonds?

Or does the double bond take priority over the length of the chain?

DrDu

I think it's Methylenyl-

aroc91

Indeed, DrDu. Chemdraw confirms that it's 3,3-dimethyl-5-methyleneheptane.

Ionization

I think the name is 2-ethyl-4,4-dimethyl-1-hexene

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krackers	IUPAC naming for a sidechain with double bond? Tweet As shown in this picture. How would you do the naming for a sidechain that has double bonds? Or does the double bond take priority over the length of the chain? Attached Thumbnails

DrDu Recognitions: Science Advisor	I think it's Methylenyl-

aroc91	Indeed, DrDu. Chemdraw confirms that it's 3,3-dimethyl-5-methyleneheptane.

Ionization	IUPAC naming for a sidechain with double bond? I think the name is 2-ethyl-4,4-dimethyl-1-hexene