Concept explainers
(a)
Interpretation:Constitutional isomer possible for
Concept introduction:There are three ways of representation of molecular structures. The hashed and wedged formulas have three types of bonds. The bond above the plane is represented by bold hash while bonds behind the plane are represented by wedge. The bonds in plane are represented by normal bonds.
Bond-line formula depicts the zig-zag framework of carbon chain with attached substituents. The terminal position represents a methyl while the non-terminal is for methylene group. For instance, the propane is written in this notation as follows:
Molecules that possess identical molecular formula but vary in the manner of their connectivity of the bonds are referred to as structural isomers. These are essentially found in
For instance, the smallest branched alkane possible is
The two compounds, in fact, constitute a pair of constitutional isomers. These kinds of isomers are formed by cleavage and replacement of bonds, unlike the conformational isomers that result due to rotation around the bond.The structural isomers possible for a given alkane increase rapidly with a number of carbon atoms. This is justified as for alkanes higher than propane more ways exist to connect the carbon atoms.
(b)
Interpretation: Constitutional isomer possible for
Concept introduction:There are three ways of representation of molecular structures. The hashed and wedged formulas have three types of bonds. The bond above the plane is represented by bold hash while bonds behind the plane are represented by wedge. The bonds in plane are represented by normal bonds.
Bond-line formula depicts the zig-zag framework of carbon chain with attached substituents. The terminal position represents a methyl while the non-terminal is for methylene group. For instance, the propane is written in this notation as follows:
Molecules that possess identical molecular formula but vary in the manner of their connectivity of the bonds are referred to as structural isomers. These are essentially found in alkanes that can be branched by removal of
For instance, the smallest branched alkane possible is
The two compounds, in fact, constitute a pair of constitutional isomers. These kinds of isomers are formed by cleavage and replacement of bonds, unlike the conformational isomers that result due to rotation around the bond.The structural isomers possible for a given alkane increase rapidly with a number of carbon atoms. This is justified as for alkanes higher than propane more ways exist to connect the carbon atoms.
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Chapter 1 Solutions
ORGANIC CHEMISTRY (LL)-PACKAGE
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- 3. Assign absolute configuration (Rors) to each chirality center. a. H Nitz C. он b. 0 H-C. C H 7 C. ་-4 917-417 refs H 1つ ८ ડુ d. Но f. -2- 01 Ho -OH 2HNarrow_forwardHow many signals do you expect in the H NMR spectrum for this molecule? Br Br Write the answer below. Also, in each of the drawing areas below is a copy of the molecule, with Hs shown. In each copy, one of the H atoms is colored red. Highlight in red all other H atoms that would contribute to the same signal as the H already highlighted red. Note for advanced students: In this question, any multiplet is counted as one signal. Number of signals in the 'H NMR spectrum. For the molecule in the top drawing area, highlight in red any other H atoms that will contribute to the same signal as the H atom already highlighted red. If no other H atoms will contribute, check the box at right. No additional Hs to color in top molecule For the molecule in the bottom drawing area, highlight in red any other H atoms that will contribute to the same signal as the H atom already highlighted red. If no other H atoms will contribute, check the box at right. No additional Hs to color in bottom moleculearrow_forwardIn the drawing area below, draw the major products of this organic reaction: 1. NaOH ? 2. CH3Br If there are no major products, because nothing much will happen to the reactant under these reaction conditions, check the box under the drawing area instead. No reaction. Click and drag to start drawing a structure. ☐ : A คarrow_forward
- Predict the major products of the following organic reaction: NC Δ ? Some important Notes: • Draw the major product, or products, of the reaction in the drawing area below. • If there aren't any products, because no reaction will take place, check the box below the drawing area instead. • Be sure to draw bonds carefully to show important geometric relationships between substituents. Note: if your answer contains a complicated ring structure, you must use one of the molecular fragment stamps (available in the menu at right) to enter the ring structure. You can add any substituents using the pencil tool in the usual way. Click and drag to start drawing a structure. Х аarrow_forwardPredict the major products of this organic reaction. Be sure you use dash and wedge bonds to show stereochemistry where it's important. + ☑ OH 1. TsCl, py .... 文 P 2. t-BuO K Click and drag to start drawing a structure.arrow_forwardConsider this organic reaction: ( Draw the major products of the reaction in the drawing area below. If there won't be any major products, because this reaction won't happen at a significant rate, check the box under the drawing area instead. Click and drag to start drawing a structure. Х : а ค 1arrow_forward
- In the drawing area below, draw the major products of this organic reaction: If there are no major products, because nothing much will happen to the reactant under these reaction conditions, check the box under the drawing area instead. 1. NaH 2. CH3Br ? Click and drag to start drawing a structure. No reaction. : ☐ Narrow_forward+ Predict the major product of the following reaction. : ☐ + ☑ ค OH H₂SO4 Click and drag to start drawing a structure.arrow_forwardConsider this organic reaction: ... OH CI Draw the major products of the reaction in the drawing area below. If there won't be any major products, because this reaction won't happen at a significant rate, check the box under the drawing area instead. ☐ No Reaction. Click and drag to start drawing a structure. : аarrow_forward
Chemistry: The Molecular ScienceChemistryISBN:9781285199047Author:John W. Moore, Conrad L. StanitskiPublisher:Cengage Learning
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