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Chemistry Forums for Students => Organic Chemistry Forum => Topic started by: Esq on March 28, 2024, 06:07:25 PM

Title: Assignment Help - Organic Chemistry
Post by: Esq on March 28, 2024, 06:07:25 PM

Can someone please help me with the remaining questions and let me know if I've done them correctly or what I did wrong? Thank you!!

Title: Re: Assignment Help - Organic Chemistry
Post by: Aldebaran on March 28, 2024, 07:02:11 PM

Are your blanks intended to mean “none” or are you just not suggesting answers for them?

Title: Re: Assignment Help - Organic Chemistry
Post by: Esq on March 28, 2024, 07:03:18 PM

I wasn't sure about the ones I left blank. Sorry, I should have clarified better

Title: Re: Assignment Help - Organic Chemistry
Post by: Aldebaran on March 29, 2024, 05:18:21 AM

OK you've done some work on this but there are gaps. Not sure if these are gaps in your understanding of the chemistry or ability to read a skeleton structure. (ii), (iii),(v) and (vii) are correct. The others need more work. It can help some students to write-out the full displayed structure to be sure what is attached to what. Then it's just a matter of being careful with your counting. Do you really know what a 3° carbon is and also a chiral carbon? If not Wikipedia or your textbook need consulting.

Title: Re: Assignment Help - Organic Chemistry
Post by: Esq on March 29, 2024, 01:57:30 PM

I've been trying to teach myself and have been struggling with this particular chapter. I do know what chiral centres are, however, I have a hard time picking them out in line structures. Would (e) have a chiral centre? Since it is attached to a methyl group, an ethyl group, a Hydrogen, and the part of the carboxylic acid. I have reviewed some more resources and have altered a few of my answers. I highlighted my alterations in blue. If able, please let me know if I'm correct in my thinking or if I'm wrong. Thank you, I truly appreciate your help

Title: Re: Assignment Help - Organic Chemistry
Post by: Hunter2 on March 29, 2024, 03:45:25 PM

Looks ok now

Title: Re: Assignment Help - Organic Chemistry
Post by: Esq on March 29, 2024, 03:56:56 PM

Thank you!! :)

Title: Re: Assignment Help - Organic Chemistry
Post by: mjc123 on March 29, 2024, 04:01:49 PM

(iv) what alcohol is C made from? Is it a branched chain alcohol?
(vi) Are those carbons that you've labelled secondary in D and E actually secondary? What is the difference, for example, between the isopropyl group in D and the one in C?

Title: Re: Assignment Help - Organic Chemistry
Post by: Esq on March 29, 2024, 06:15:52 PM

(iv) C is made from an isopropyl alcohol. So, it wouldn't be branched alcohol since the 3 carbons would be the longest chain and the OH group would act as a substituent? Correct?

(vi) D and E would be 3° carbon! I realize my mistake, I wasn't including the C attached to the double-bonded O.

Thank you!! I understand this concept more clearly now!

Title: Re: Assignment Help - Organic Chemistry
Post by: Aldebaran on March 30, 2024, 05:34:20 AM

Seems you’ve got it now- well done.👍