According to the mechanism of bromination discussed in lecture, what is the intermediate's structure of the...
6. Given the relative rate of hydrogen abstraction for a radical bromination mechanism, as discussed in class, follows the order of: 1640 : 82: 1 (3° : 2° : 1°) calculate the expected product distribution for the following reaction. Show all work for partial credit. (9 pts.) Br Br2, ho Br - II % %
8.
7. Which alkene below reacts most rapidly with HBr to give an alkyl bromide? CIEN that can generate the most stable carbocation will react the fastest. mide? Circle it. (0.25 pt) Hint: The alken - 8. Complete the mechanism of hydration of alkene below. Please follow curved arrows to preure structures in each step. (1.5 pts, 0.5 pt each) ed arrows to predict the resulting Step 1 of hydration of 2-methyl-1-propene: Note that the most stable carbocation is formed...
7. (5pts) of the reducing agents that we discussed during lecture, what would you use to reduce an amide? 8.(12 pts) Draw a detailed stepwise mechanism for the following reaction. Must include ALL steps. 1) Br, hv 2) Mg(s) 3) OH 요 4) H30+
24. a) Write a reasonable mechanism, using good arrow notation,
for the bromination of phenol to p-bromophenol. Show all the
resonance forms of the intermediate and circle the major
contributing resonance structure.
b) Prepare acetanilide from benzene and acetic acid as the source
of all carbons, and any
inorganic or organic reagents necessary
24. a) Write a reasonable mechanism, using good arrow notation, for the bromination of phenol to p-bromophenol. Show all the resonance forms of the intermediate and circle...
Select
any design/mechanism and perform a benchmarking analysis similar to
an example
discussed during lecture. Analysis report should contain following
information: description
of the
design/mechanism, working principle, part list with material and
manufacturing
method
for each component, disassembly sequence.
2. Select any design/mechanism and perform a benchmarking analysis similar to an example discussed during lecture. Analysis report should contain following nformation: description of the design/mechanism, working principle, part list with material and manufacturing method for each component, disassembly sequence. (30...
CHEM 3053 Problem Set 15 Spring 2019 7.) Provide a mechanism for the following radical bromination reaction, including the radical initiaticn step. Br Br hv
CHEM 3053 Problem Set 15 Spring 2019 7.) Provide a mechanism for the following radical bromination reaction, including the radical initiaticn step. Br Br hv
Draw the structure of alkene which upon bromination gives the
following product. (Remember about stereochemistry). Show, by
drawing the relevant mechanism, that this particular stereoisomer
will be formed from the starting material you have chosen.
COOH Br COOH
igonore the portion that mentions the lecture, nothing was
discussed in lecture. no addidtional information is needed. clear
handwriting or typing please.
3. (4 pts. Looking back to the CCR5 data explained during the lecture, we calculated that in a population in Iceland the frequency of the mutated allele was 0.147. How many generations would it take the allele to reach a frequency of 0.5, if a mutation rate of 10% is the only evolutionary force at work? What evolutionary...
The following is not part of the lecture-preparation assignment. They will be discussed in class instead. However, you are strongly encouraged to try them before coming to class so that you will get the best result from the discussion. Print this out and bring to class. 1. Complete the following boxes H/Pt Na, NH3(1) Lindlar's Catalyst 1. 9-BBN 2. H2O2, NaOH HgSO4, H2SO4 Intermediate 1 equvalent Bry/CC14 1 equivalent HBr Inte rme diat Tautomerization Tautomerization 03, H2O
alswering these questions. 1. If the bromination of trans-stilbene proceeded by syn addition what isomer(s) of stilbene dibromide would be formed? 2. If the bromination of trans-stilbene proceeded by anti addition what isomer(s) of stilbene dibromide would be formed? 3. Which isomer(s) of stilbene dibromide would be formed if the reaction followed Mechanism 4? Mechanism 4: Bromination is a multi-step process. In this mechanism, the pi bond attacks the bromine molecule as in Mechanism 1. Some time after the carbocation...