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(a)
Interpretation:
Correct IUPAC name for the given
Concept Introduction:
For naming an aldehyde in
IUPAC rules for naming an aldehyde:
- • The longest parent carbon chain is identified that includes the carbonyl group.
- • The parent chain name is changed by replacing the suffix “-e” with “-al”.
- • Numbering is done in a way that the carbonyl group is designated as number 1. This is not indicated in the part of the name because for aldehyde, the carbonyl carbon is always numbered 1.
- • The identity and location of substituents if any has to be determined and this information has to be added in front of the IUPAC name.
- • If the carbonyl
functional group is attached to a ring of carbon atoms, the ring is named and “-carbaldehyde” is added as suffix.
(b)
Interpretation:
Correct IUPAC name for the given aldehyde has to be assigned.
Concept Introduction:
For naming an aldehyde in IUPAC nomenclature, the suffix “-al” is added to the parent alkane name.
IUPAC rules for naming an aldehyde:
- • The longest parent carbon chain is identified that includes the carbonyl group.
- • The parent chain name is changed by replacing the suffix “-e” with “-al”.
- • Numbering is done in a way that the carbonyl group is designated as number 1. This is not indicated in the part of the name because for aldehyde, the carbonyl carbon is always numbered 1.
- • The identity and location of substituents if any has to be determined and this information has to be added in front of the IUPAC name.
- • If the carbonyl functional group is attached to a ring of carbon atoms, the ring is named and “-carbaldehyde” is added as suffix.
(c)
Interpretation:
Correct IUPAC name for the given aldehyde has to be assigned.
Concept Introduction:
For naming an aldehyde in IUPAC nomenclature, the suffix “-al” is added to the parent alkane name.
IUPAC rules for naming an aldehyde:
- • The longest parent carbon chain is identified that includes the carbonyl group.
- • The parent chain name is changed by replacing the suffix “-e” with “-al”.
- • Numbering is done in a way that the carbonyl group is designated as number 1. This is not indicated in the part of the name because for aldehyde, the carbonyl carbon is always numbered 1.
- • The identity and location of substituents if any has to be determined and this information has to be added in front of the IUPAC name.
- • If the carbonyl functional group is attached to a ring of carbon atoms, the ring is named and “-carbaldehyde” is added as suffix.
(d)
Interpretation:
Correct IUPAC name for the given aldehyde has to be assigned.
Concept Introduction:
For naming an aldehyde in IUPAC nomenclature, the suffix “-al” is added to the parent alkane name.
IUPAC rules for naming an aldehyde:
- • The longest parent carbon chain is identified that includes the carbonyl group.
- • The parent chain name is changed by replacing the suffix “-e” with “-al”.
- • Numbering is done in a way that the carbonyl group is designated as number 1. This is not indicated in the part of the name because for aldehyde, the carbonyl carbon is always numbered 1.
- • The identity and location of substituents if any has to be determined and this information has to be added in front of the IUPAC name.
- • If the carbonyl functional group is attached to a ring of carbon atoms, the ring is named and “-carbaldehyde” is added as suffix.
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Chapter 15 Solutions
EBK GENERAL, ORGANIC, AND BIOLOGICAL CH
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- Classify the following lipid (choose all that apply for the overall structure, not the individual residues). a. wax ester b. fatty acid c. polyunsaturated d. trans alkene(s) e. steroid f. monounsaturated g. triglyceride h. cis alkene(s) i. saturatedarrow_forwardDescribe any two heteropolysaccharides in terms of: a. The types of monosaccharides involved b. types of glycosidic linkages, and c. possible hydrolysatesarrow_forwardAssign a name to each of the following monosaccharides. Use D and L designations. H b. CH 2OH a. C=0 C=0 HO-C-H H-C-OH HO-C-H Н-С-Он CH,OH CH 2OH a. b. Circle all chiral centers for the monosaccharides shown. С. d. True or False: The molecules shown can rotate plane polarized light?arrow_forward
- Salol, the phenyl ester of salicylic acid, is used as an intestinal antiseptic. Draw the structure of phenyl salicylate.arrow_forwardFrom the following monosaccharides, identify the a anomers. Select all that apply. Select one or more: OH он OH OH O a. OH OH HO но- Ob. ÓH H OH HO но- он H OH O c. HO OH ÓH ÓH d.arrow_forwardSalicylic acid (o-hydroxybenzoic acid) is used as starting material to prepare aspirin. Draw the structure of salicylic acid.arrow_forward
- Listed below are descriptions that may belong to amylose, amylopectin, both, or it may not belong to either. Write A if it describes amylose, B if it describes amylopectin, AB if the statement applies to both, or O if it doesn’t apply to either. 1. Its monosaccharides are bound by at least one α-1,4-glycosidic bond. 2. It contains α-1,6-glycosidic bonds. 3. It can be broken down by the enzyme α-amylase. 4. A polysaccharide made up of gulose. 5. It can form a double helix.arrow_forwarda) Use the carbonyl group, number of carbons, and type of stereochemistry (D or L) to classify the following monosaccharides. CH2OH O: CHO I но -H- HO- но -H- HOCH2 HO- -O- CH2OH H- OH CH2OH i.Compound A is a(n with stereochemistry. ii.Compound B is a(n) with stereochemistry.arrow_forwardGalactose can exist as a cyclic hemiacetal because one of the alcohol groups reacts with the aldehyde. 1 2 3 4 он он о Н Он Он о CH2-CH-CH-CH-CH-C-H 6. CH2-OH OH C он 10 он C 8. H. H. OH Which carbon atom of the cyclic hemiacetal was originally a part of the aldehyde group? Carbon: Which alcohol group in the open-chain structure became a part of the cyclic hemiacetal? Alcohol:arrow_forward
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