Exam (elaborations)
CEM 252 EXAM 1 QUESTIONS AND ANSWERS WITH SOLUTIONS 2024
- Course
- Institution
CEM 252 EXAM 1 QUESTIONS AND ANSWERS WITH SOLUTIONS 2024
[Show more]
Seller
Follow
Performance
Reviews received
Content preview
CEM 252 EXAM 1 QUESTIONS ANDANSWERS WITH SOLUTIONS 2024
ether - ANSWER R-O-R
epoxide - ANSWER 3 membered cyclic ether
phenyl ring - ANSWER
benzyl ring - ANSWER
vinyl - ANSWER two carbons with a double bond
allyl - ANSWER three carbons with double bond
Markovnikov addition of H-OH - ANSWER H+ cat and H-OH
or
1. HgSO4 (Hg(OAc)2) H-OH)
2. NaBH4
does equilibrium go towards or away from the strong acid? - ANSWER away
does equilibrium go towards or away from the most stable base? - ANSWER towards
THF (tetrahydrofuran) - ANSWER reduction (add H's)
mCPBA - ANSWER meta (1,3)-chloro-per-benzoic acid
how to make an epoxide: alkene epoxidation - ANSWER alkene + pezacid (mCPBA) to syn epoxide
, how to make an epoxide: intramolecular williamson - ANSWER 1. addition of Br2 and H2O
2. knock out Br, and add nucleophile
epoxide opening (2 conditions) - ANSWER basic and acidic
basic conditions - ANSWER 1. Nuc -
2. H + (quench)
strong (charged) nucleophile, NaOH, opens on least substituted carbon (for asymmetric) (2 steps)
acidic conditions - ANSWER H+ catalyzed reactions, NucH (neutral and weak)
lone pair on H2O, opens on most substituted carbon (for asymmetric) (1 step)
organometallic reagents - ANSWER c-based nucleophiles (negative)... VERY strong nucleophile, R- M+
2 types of organometallic reagents - ANSWER organolithium (R-Li+) (lithium in solution) and
organomagnesium (R-Mg+2 X-) (Grignard)
Grignard reagents - ANSWER ignore MgBr-, look at R group and attach to molecule
alcohol - ANSWER R-O-H
carboxylic acid - ANSWER COOH
two types of alcohols - ANSWER aliphatic and aromatic
aliphatic alcohols - ANSWER linear and ring (no double bonds)
aromatic alcohol - ANSWER phenol (double bonds)
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Performance. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for CA$22.97. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
84866 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now