
Concept explainers
Interpretation:
The structure of the compound has to be identified from the given data.
Concept introduction:
Spectroscopy:
It is study of the interaction of matter and
IR frequency (cm-1):
It is the number of wave crests that pass by a given point in one second frequency has units of hertz (Hz).
Stretch vibrations:
It is a vibration occurring along the line of the bond a stretching vibration changes the bond length.
Bending vibrations:
It is a vibration that does not occur along the line of the bond, bending vibration changes the bond angle.
Mass spectroscopy:
Interpreting a mass spectrum:
Each m/z values is the m/z value of one the fragments to the nearest whole number.
The peak with the highest m/z value in the molecular ions (M+), the fragment that results when the molecules lose electrons as result of being bombarding by the electron beam.
The m/z value of the molecular ion gives the molecular mass of the compound.
Peaks with smaller m/z values, fragment ion peak represent positively charged fragments of the molecular ion.
Base peak of mass spectrum:
The base peak is the one of highest (or) tallest peak, it has great abundance. It has the greatest relative abundance because it is generally the most stable positively charged fragment.
Given information:
The absorption value is at 1584, 1478, and 1446 cm-1 and it has M+ = 114, 112 and 77.

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Chapter 12 Solutions
EBK ORGANIC CHEMISTRY
- Protecting Groups and Carbonyls 6) The synthesis generates allethrolone that exhibits high insect toxicity but low mammalian toxicity. They are used in pet shampoo, human lice shampoo, and industrial sprays for insects and mosquitos. Propose detailed mechanistic steps to generate the allethrolone label the different types of reagents (Grignard, acid/base protonation, acid/base deprotonation, reduction, oxidation, witting, aldol condensation, Robinson annulation, etc.) III + VI HS HS H+ CH,CH,Li III I II IV CI + P(Ph)3 V ༼ Hint: no strong base added VI S VII IX HO VIII -MgBr HgCl2,HgO HO. isomerization aqeuous solution H,SO, ༽༽༤༽༽ X MeOH Hint: enhances selectivity for reaction at the S X ☑arrow_forwardDraw the complete mechanism for the acid-catalyzed hydration of this alkene. esc 田 Explanation Check 1 888 Q A slock Add/Remove step Q F4 F5 F6 A བྲA F7 $ % 5 @ 4 2 3 & 6 87 Click and drag to start drawing a structure. © 2025 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Ce W E R T Y U S D LL G H IK DD 요 F8 F9 F10 F1 * ( 8 9 0 O P J K L Z X C V B N M H He commandarrow_forwardExplanation Check F1 H₂O H₂ Pd 1) MCPBA 2) H3O+ 1) Hg(OAc)2, H₂O 2) NaBH4 OH CI OH OH OH hydration halohydrin formation addition halogenation hydrogenation inhalation hydrogenation hydration ☐ halohydrin formation addition halogenation formation chelation hydrogenation halohydrin formation substitution hydration halogenation addition Ohalohydrin formation subtraction halogenation addition hydrogenation hydration F2 80 F3 σ F4 F5 F6 1 ! 2 # 3 $ 4 % 05 Q W & Å © 2025 McGraw Hill LLC. All Rights Reserved. F7 F8 ( 6 7 8 9 LU E R T Y U A F9arrow_forward
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- The two pKa values of oxalic acid are 1.25 and 3.81. Why are they not the same value? Show the protontransfer as part of your explanation. *see imagearrow_forwardасть Identify all the bonds that gauche interact with C-OMe in the most stable conformation of the above compound.arrow_forwardPredict the reactants used in the formation of the following compounds using Acid-Catalyzed dehydration reactionarrow_forward
- Organic ChemistryChemistryISBN:9781305580350Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. FootePublisher:Cengage LearningEBK A SMALL SCALE APPROACH TO ORGANIC LChemistryISBN:9781305446021Author:LampmanPublisher:CENGAGE LEARNING - CONSIGNMENT


