Return to Blog
Homepage
MCAT Organic Chemistry Question — IUPAC
- by
- May 02, 2018
- MCAT Question of the Day
What is the IUPAC name of the following compound: (CH3)2CH-NH-CH-(CH3)2?
- Diisopropylamine
- Diisobutylamine
- Di-tert-propylamine
- 1,1-dimethylethylamine
Click for Explanation
(CH3)2CH-NH-CH-(CH3)2 is the structure of a secondary amine (NH-R2), with two substituent isopropyl groups, CH(CH3)2. Acceptable names for the compound are Diisopropylamine and N-Isopropylpropan-2-amine. Diisopropylamine is used as an herbicide precursor and in vulcanization processes during the manufacture of rubber.
A. Diisopropylamine, correct.
B. Diisobutylamine, incorrect, The two substituent groups have 3 carbons each, isobutyl groups have four carbons, -CH2-CH-(CH3)2.
C. Di-tert-propylamine, incorrect, There is no such thing as a tert-propyl group; the tert-butyl group requires 4 carbons.
D. N,N-dimethylethylamine, incorrect, The IUPAC name is generated by 1) identifying the longest carbon chain (propane), 2) identifying the highest priority functional group (amine on carbon 2 of the parent propane chain, i.e. 2-amine), identify side chains (N-Isopropyl), and put it together: N-Isopropylpropan-2-amine. The structure of N,N-dimethylethylamine is [(CH3)3]N. The ethane parent carbon chain in choice d) reveals this answer to be incorrect; the parent carbon chain in the question stem is a propane chain with three carbons.
Want more MCAT practice?
We’ve got options for every schedule and learning style!
From the best online MCAT course created by top instructors with 524+ MCAT scores to the most representative full-length practice exams and private tutoring, we can custom tailor your MCAT prep to your goals!
Not sure which option is right for you? Schedule a free MCAT consultation with an MCAT expert using the form below. No obligation, just expert advice.
Related Post
Search the Blog
Free Consultation
Interested in our Online MCAT Course or one of our One-on-One MCAT Tutoring packages? Set up a free consultation with one of our experienced Academic Managers!
Schedule NowPopular Posts
-
-
-
-
-
MCAT Blog How to Review MCAT Full-Lengths
Free MCAT Practice Account
Need great MCAT practice?Get the most representative MCAT practice possible when you sign up for our free MCAT Account, which includes a half-length diagnostic exam and one of our full-length MCAT practice exams.
Learn More
Submit a Comment