Naming Cycloalkanes

[@ValentineChinedum-zk9up]

Thanks a lot, up until now I never thought that the numbering rule counts when you are dealing with cycloalkanes

[@OldSchoolChemistry]

Hi Valentine, I am glad it helped. I hope the rest of your class goes well:)

[@arashin6638]

Thank u sm for this!!! You look so kind.❤❤

[@OldSchoolChemistry]

Hi Arashin, you are so welcome. Thank you for your comment:)

[@boulanouarmessaoudi4652]

Thanks. What if the number of carbon atoms of the linear chain is bigger than the one of the cycloalcane? How would you name the compound?

[@OldSchoolChemistry]

Hi Boulanouoar, If there is an alkyl straight chain that has a greater number of carbons than the cycloalkane, then the alkyl chain must be used as the primary parent chain. I hope that helps! Thanks:)

[@boulanouarmessaoudi4652]

@@OldSchoolChemistry Thank you for your kind help!

[@shabanaparwin3861]

Which class do you teach?

[@OldSchoolChemistry]

Hi Shabanaparwin, I teach college CHEM 1110 which is designed for medical tech professionals like nurses, x-ray techs, and respiratory therapists. I also teach High School AP chemistry with is equivalent to first year college, general chemistry. Thanks!

[@shabanaparwin3861]

@@OldSchoolChemistry ma'm can u plz send me some more questions.......

[@OldSchoolChemistry]

I suggest using Chegg to look up more cycloalkane questions. You can also ask your professor or use a textbook for more questions. I hope it goes well!

[@kennycao9334]

if i am given a structure with cyclopropane will it have priority as the parent group or does it have to have at least 4 carbons in the ring?

[@OldSchoolChemistry]

Hi Kenny, If there is an alkyl straight chain that has a greater number of carbons than the cycloalkane, then the alkyl chain must be used as the primary parent chain. I hope that helps! Thanks:)

[@AyaAbdu-c5c]

Thank you so much sweetie 🩷

[@OldSchoolChemistry]

You are very welcome:)

[@ruthpadilla3]

thxx

[@Aisyah-qf2pz]

Thank you!

[@OldSchoolChemistry]

Hi Aisyah, you are very welcome:) Thank you for your comment!

[@masterno8576]

Isn’t number 6 1,5 not 1,3 since carbons are read clockwise

[@OldSchoolChemistry]

Hi Masterno, it is 1,3 because that gives the lowest sum of Carbon positions. There is not a rule to number clockwise. The rule is to give the lowest numbers possible. I hope that helps. Thanks!

[@masterno8576]

@@OldSchoolChemistry oh got it thanks a bunch

[@SeanAldrichVonJuntadoREBOJO]

thanks you very helpful

[@OldSchoolChemistry]

Hi Sean, thank you for commenting. I am so glad it was helpful. You are very welcome:)

[@markjexrelcristobal8682]

you should add the prefix "di" in number 3

[@OldSchoolChemistry]

Hi Mark, good catch! You are correct. Thank you:)

[@sabitrikhatri9998]

For number3--1,3-dimethylhexane

[@OldSchoolChemistry]

Hi Sabitri, Yes! Thank you for catching that mistake;)