Two cycloalkanes attached to each other

[zricciardulli]

One example in the book we werent asked to name but 2 cyclohexane were combined to one another. Apparently, its called biphenyl. Just want to confirm that we wouldnt be asked to name anything like that on the quiz/final

[Chem_Mod]

Biphenyl would be two benzene rings attached.

It is not in my lecture notes and we did not cover it. You would not be expected to know that.

Please note: I am very fair. Material covered in class and homework is what I cover and examine.

Chem 14B is a general chemistry (physical chemistry) course.
However I dedicate a good deal to a solid foundation in organic chemistry to prepare my students for Chem 14C.
Obviously we cannot cover everything. Any additional organic chemistry reading is encouraged as it will help you in Chem 14C, Chem 14CL, Chem 14D, etc. You will see biphenyl in these 100% organic chemistry classes.

Ask around, ask UAs, ask students who have taken the MCAT, DAT, etc.
They are so thankful to have taken my classes that prepared them so well. A lot of effort on my part and for students in my classes. But the effort pays off. You will have a strong foundation for Chem 14C, MCAT, etc.

[Anna Wiese 2k]

On the 2015 Winter final question 10 A. asks you to name all the functional groups present in Doxorubicin, Phenol is listed as a functional group. I was wondering if we should be responsible to identifying phenol and further more why in the answer key the OH attached to the benzene ring were tallied twice, both as phenol and as an alcohol?

[Chem_Mod]

The correct answer is phenol but since we did not cover phenols we also accepted alcohol. I'll mention this in class today.

[danielashirazi_1L]

Do we have to know spiroalkanes and bicycloalkanes for the exam?

[carissa1F]

On the final, will it be clarified in the question whether you want a line structure or a structure that can show the shape of the molecule?
For example, if it was a cyclohexane with a chair or boat conformation or whether you just want to see a regular line structure?

[Chem_Mod]

Do we have to know spiroalkanes and bicycloalkanes for the exam?

They are not part of the Chem 14B Syllabus.

[Chem_Mod]

On the final, will it be clarified in the question whether you want a line structure or a structure that can show the shape of the molecule?
For example, if it was a cyclohexane with a chair or boat conformation or whether you just want to see a regular line structure?

Question will be clear when asking for structure or conformation.

[004569922]

If you're given a case in which there are two identical cycloalkanes attached to one another (if that's even possible), how would you distinguish the parent chain? Substituents?

[204643191]

On quiz 3, they asked us to draw the line structure of (C6H11)C(CH3)3, so I drew a cyclohexane with a tert-propyl attached to it. However, they wanted the systematic name so I wrote down (1,1-dimethylethyl)cyclohexane and I got marked wrong on the dimethylethyl part, specifically the ethyl part. What would be the correct name?

[204643191]

What's the difference between using phenyl and benzyl when naming structures that have cyclohexanes connected to longer carbon chains(therefore making the cyclohexane the substituent).

[Peter2715]

On quiz 3, they asked us to draw the line structure of (C6H11)C(CH3)3, so I drew a cyclohexane with a tert-propyl attached to it. However, they wanted the systematic name so I wrote down (1,1-dimethylethyl)cyclohexane and I got marked wrong on the dimethylethyl part, specifically the ethyl part. What would be the correct name?

That structure would actually have a tert-butyl sticking off the cyclohexane not a tert-propyl.
You are right; The IUPAC name would be: (1,1-Dimethylethyl)cyclohexane so I do not see why you lost a point there.

[Peter2715]

What's the difference between using phenyl and benzyl when naming structures that have cyclohexanes connected to longer carbon chains(therefore making the cyclohexane the substituent).

We won't be expected to use phenyl or benzyl; rather if you have a cyclic substituent like cyclohexane or cyclopropane, you would treat it using substituent naming adding a -yl : For example, a 7 long carbon chain with a cyclopropane attached to the third carbon would be called 3-cyclopropylheptane.