Videos
(a)
Interpretation:
The structure is to be drawn, and the correct IUPAC name for the given trivial name is to be provided.
Concept introduction:
Most of the trivial names of
For a straight chain aldehyde, the carbonyl carbon gets number one. For cyclic aldehydes, the carbonyl carbon cannot be the part of the ring, and thus, it must be present outside the ring.
To write the IUPAC name of a compound, first it is important to determine the highest-priority functional group present that requires a suffix referring to Table E-1. The suffix al is used for aldehydes. Then the main chain or ring is to be determined that contains the highest-priority functional group. The next step is to number the main chain or ring such that carbon atoms involving the highest-priority functional group receive the lowest possible numbers. The locator number for the highest-priority functional group is written immediately before the suffix, unless redundant. All other
(b)
Interpretation:
The structure is to be drawn, and the correct IUPAC name for the given trivial name is to be provided.
Concept introduction:
Most of the trivial names of aldehydes are derived from the analogous carboxylic acids.
For a straight chain aldehyde, the carbonyl carbon gets number one. For cyclic aldehydes, the carbonyl carbon cannot be the part of the ring, and thus, it must be present outside the ring.
To write the IUPAC name of a compound, first it is important to determine the highest-priority functional group present that requires a suffix referring to Table E-1. The suffix al is used for aldehydes. Then the main chain or ring is to be determined that contains the highest-priority functional group. The next step is to number the main chain or ring such that carbon atoms involving the highest-priority functional group receive the lowest possible numbers. The locator number for the highest-priority functional group is written immediately before the suffix, unless redundant. All other functional groups in the molecule are treated as substituents and appear in the name as a prefix. Prefixes such as di, tri, tetra, etc., are used to indicate the number of identical substituents attached. The substituents are named in the alphabetical order.
(c)
Interpretation:
The structure is to be drawn, and the correct IUPAC name for the given trivial name is to be provided.
Concept introduction:
Most of the trivial names of aldehydes are derived from the analogous carboxylic acids.
For a straight chain aldehyde, the carbonyl carbon gets number one. For cyclic aldehydes, the carbonyl carbon cannot be the part of the ring, and thus, it must be present outside the ring.
To write the IUPAC name of a compound, first it is important to determine the highest-priority functional group present that requires a suffix referring to Table E-1. The suffix al is used for aldehydes. Then the main chain or ring is to be determined that contains the highest-priority functional group. The next step is to number the main chain or ring such that carbon atoms involving the highest-priority functional group receive the lowest possible numbers. The locator number for the highest-priority functional group is written immediately before the suffix, unless redundant. All other functional groups in the molecule are treated as substituents and appear in the name as a prefix. Prefixes such as di, tri, tetra, etc., are used to indicate the number of identical substituents attached. The substituents are named in the alphabetical order.
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Chapter E Solutions
ORG CHEM W/ EBOOK & SW5 + STUDY GUIDE
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- Answers to the remaining 6 questions will be hand-drawn on paper and submitted as a single file upload below: Review of this week's reaction: H₂NCN (cyanamide) + CH3NHCH2COOH (sarcosine) + NaCl, NH4OH, H₂O ---> H₂NC(=NH)N(CH3)CH2COOH (creatine) Q7. Draw by hand the reaction of creatine synthesis listed above using line structures without showing the Cs and some of the Hs, but include the lone pairs of electrons wherever they apply. (4 pts) Q8. Considering the Zwitterion form of an amino acid, draw the Zwitterion form of Creatine. (2 pts) Q9. Explain with drawing why the C-N bond shown in creatine structure below can or cannot rotate. (3 pts) NH2(C=NH)-N(CH)CH2COOH This bond Q10. Draw two tautomers of creatine using line structures. (Note: this question is valid because problem Q9 is valid). (4 pts) Q11. Mechanism. After seeing and understanding the mechanism of creatine synthesis, students should be ready to understand the first half of one of the Grignard reactions presented in a past…arrow_forwardPropose a synthesis pathway for the following transformations. b) c) d)arrow_forwardThe rate coefficient of the gas-phase reaction 2 NO2 + O3 → N2O5 + O2 is 2.0x104 mol–1 dm3 s–1 at 300 K. Indicate whether the order of the reaction is 0, 1, or 2.arrow_forward
- 8. Draw all the resonance forms for each of the following molecules or ions, and indicate the major contributor in each case, or if they are equivalent. (4.5 pts) (a) PH2 سمةarrow_forward3. 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_forward
- In 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_forwardPredict 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_forward
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