experiment- Reduction of 4-tert-butylcyclohexanone question- How might 1H NMR be used to distinguish between the cis and trans alcohol products that form?
Analyzing Infrared Spectra
The electromagnetic radiation or frequency is classified into radio-waves, micro-waves, infrared, visible, ultraviolet, X-rays and gamma rays. The infrared spectra emission refers to the portion between the visible and the microwave areas of electromagnetic spectrum. This spectral area is usually divided into three parts, near infrared (14,290 – 4000 cm-1), mid infrared (4000 – 400 cm-1), and far infrared (700 – 200 cm-1), respectively. The number set is the number of the wave (cm-1).
IR Spectrum Of Cyclohexanone
It is the analysis of the structure of cyclohexaone using IR data interpretation.
IR Spectrum Of Anisole
Interpretation of anisole using IR spectrum obtained from IR analysis.
IR Spectroscopy
Infrared (IR) or vibrational spectroscopy is a method used for analyzing the particle's vibratory transformations. This is one of the very popular spectroscopic approaches employed by inorganic as well as organic laboratories because it is helpful in evaluating and distinguishing the frameworks of the molecules. The infra-red spectroscopy process or procedure is carried out using a tool called an infrared spectrometer to obtain an infrared spectral (or spectrophotometer).
experiment- Reduction of 4-tert-butylcyclohexanone
question- How might 1H NMR be used to distinguish between the cis and trans alcohol products that
form?
![Experiment - Reduction of t-butylcyclohexanone ធ
A
Q ↑↓
+ 100%
The first step in this reaction is the transfer of a hydride ion to the carbon of the carbonyl. The hydride
acts as a nucleophile and attacks the carbon of the carbonyl. The hydride can either come in via an
axial attack or an equatorial attack depending on steric factors and the placement of other substituents
on the ring. Below is the reaction scheme. Take note that some arrows are missing so be sure to
include those when writing the mechanism in your prelab report. Typically, the axial attack is preferred
over the equatorial attack, leading to the alcohol in the equatorial position. This type of reaction is
stereoselective since one stereoisomer is preferred over another. For the reaction in this week's
experiment, a mixture of diasteriomeric alcohols will be produced and analyzed.
1 of 4
(H3C)3C-
ملے اور میں
Figure 1
axial attack
equatorial attack
(H3C)3C-
(H3C)3C-
H
H
H
HⓇ
(H3C)3C-
(H3C)3C-
90% trans
10% cis
H
OH
OH
H
If a more sterically hindered reducing agent is used, then the opposite product ratio is observed. If they
were to make an axial attack, these hydride reagents would sterically clash with 1,3-diaxial hydrogen
atoms.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fa19fa31b-c6a1-4dda-95dc-44f8d9193b80%2F372d3485-0ee7-4266-81f2-50324114960f%2F2aeitfo_processed.jpeg&w=3840&q=75)
![](/static/compass_v2/shared-icons/check-mark.png)
Trending now
This is a popular solution!
Step by step
Solved in 5 steps with 1 images
![Blurred answer](/static/compass_v2/solution-images/blurred-answer.jpg)
![Chemistry](https://www.bartleby.com/isbn_cover_images/9781305957404/9781305957404_smallCoverImage.gif)
![Chemistry](https://www.bartleby.com/isbn_cover_images/9781259911156/9781259911156_smallCoverImage.gif)
![Principles of Instrumental Analysis](https://www.bartleby.com/isbn_cover_images/9781305577213/9781305577213_smallCoverImage.gif)
![Chemistry](https://www.bartleby.com/isbn_cover_images/9781305957404/9781305957404_smallCoverImage.gif)
![Chemistry](https://www.bartleby.com/isbn_cover_images/9781259911156/9781259911156_smallCoverImage.gif)
![Principles of Instrumental Analysis](https://www.bartleby.com/isbn_cover_images/9781305577213/9781305577213_smallCoverImage.gif)
![Organic Chemistry](https://www.bartleby.com/isbn_cover_images/9780078021558/9780078021558_smallCoverImage.gif)
![Chemistry: Principles and Reactions](https://www.bartleby.com/isbn_cover_images/9781305079373/9781305079373_smallCoverImage.gif)
![Elementary Principles of Chemical Processes, Bind…](https://www.bartleby.com/isbn_cover_images/9781118431221/9781118431221_smallCoverImage.gif)