Concept explainers
(a)
Interpretation: The structure and the systematic name of the product for the given reaction have to be given.
Concept introduction:
An
Systematic Name: It is a standardized name given for a chemical compound in systematic manner. Any organic molecule can be named by using IUPAC (International Union for Pure and applied chemistry) rules. IUPAC name consists of three parts in major namely Prefix suffix and root word.
Prefix represents the substituent present in the molecule. It can be any alkyl group and carboxy, amino, cyano etc…
Suffix represents the substituent present in the molecule. It can be any alkene,
Root word represents the longest continuous carbon skeleton present in the organic molecule.
When a molecule consists of cyclic structure, the root word of the molecule is prefixed with cyclo.
IUPAC naming for
Name the main chain: Find the longest carbon chain and name the chain according to the number of carbon atoms it contains; is also the suffix part of the name.
Number the carbon atoms in the main chain: The carbons are numbered, in which the substituents must get lowest possible numbers.
Identify the substituents, and number each: The number at where substituents are present has to be noted. The substituents written as prefix.
Write the names as a single word: Use the hyphen to separate the numbers from the different prefix; commas to separate numbers. If two or more different substituents are present, arrange them in alphabetical order. If two or more identical substituents are present, use prefixes di-, tri-, tetra-, but this particular prefix should not be used for alphabetizing purpose.
(b)
Interpretation: The structure and the systematic name of the product for the given reaction have to be given
Concept introduction:
An alkene undergo hydrogentaion reaction when it is treated with hydrogen gas. The addition of two hydrogen atoms takes place on the carbon-carbon double bond. The product formed is called as alkane as there will be only carbon-carbonsingle bonds in the molecule.
Systematic Name: It is a standardized name given for a chemical compound in systematic manner. Any organic molecule can be named by using IUPAC (International Union for Pure and applied chemistry) rules. IUPAC name consists of three parts in major namely Prefix suffix and root word.
Prefix represents the substituent present in the molecule. It can be any alkyl group and carboxy, amino, cyano etc…
Suffix represents the substituent present in the molecule. It can be any alkene, alkyne, alcohol, carboxylic acid, alcohol etc...
Root word represents the longest continuous carbon skeleton present in the organic molecule.
When a molecule consists of cyclic structure, the root word of the molecule is prefixed with cyclo.
IUPAC naming for Alkane:
Name the main chain: Find the longest carbon chain and name the chain according to the number of carbon atoms it contains; is also the suffix part of the name.
Number the carbon atoms in the main chain: The carbons are numbered, in which the substituents must get lowest possible numbers.
Identify the substituents, and number each: The number at where substituents are present has to be noted. The substituents written as prefix.
Write the names as a single word: Use the hyphen to separate the numbers from the different prefix; commas to separate numbers. If two or more different substituents are present, arrange them in alphabetical order. If two or more identical substituents are present, use prefixes di-, tri-, tetra-, but this particular prefix should not be used for alphabetizing purpose.
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Chapter 23 Solutions
Chemistry & Chemical Reactivity
- Draw the structures of the following compounds. (a) 1,2-dibromo-3-methylpentanearrow_forward(1) Write a complete chemical equation showing reactants, products, and catalysts needed (if any) for the following reaction and (2) Draw and name the organic compound found in every reaction. (a) Complete hydrogenation of 2-Methylhexa-1,5-diene (b) Complete halogenation (Br2) of 3-Ethyl-2,2-dimethylhept-3-ene (c) Reaction of (4E)-2.4-Dimethylhexa-1,4-diene with a mole of water (d) Reaction of cis-3,3-Dimethyl-4-propylocta-1,5-diene with two mole of HBr (e) Reaction of trans-1-Bromo-3-chlorocyclopentane with potassium hydroxide (f) Formation of Gilman reagent using isopropyl bromide (g) Ozonolysis of 3,3-Dimethyloct-4-yne (h) Complete halogenation (Cl2) of 3-Ethyl-5-methyl-1,6,8-decatriyne (i) Partial hydrogenation using Lindlar's Catalyst 2,2,5,5-Tetramethylhex-3-yne (i) Reaction of 3.4-Dimethylcyclodecyne with sodium amidearrow_forwardClassify each of the following reactions as an addition, elimination, substitution, or rearrangement: (a) CH3Br + KOH → CH3OH + KBr(b) CH3CH2Br → H2C=CH2 + HBr(c) H2C=CH2 + H2 → CH3CH3arrow_forward
- Draw the structures of the following compounds:(a) Ethanoic acid(b) Bromopentane(c) Butanonearrow_forward(a) Write the IUPAC names of the following compounds :(i) CH3CO(CH2)4CH3 (ii) Ph — CH = CH — CHO(b) Describe the following conversions in not more than two steps :(i) Ethanol to 3-Hydroxybutanal (ii) Benzoic acid to m-Nitrobenzyl alcohol(iii) Propanone to Propenearrow_forwardClassify each of the following reactions as an addition, elimination, substitution, or rearrangement. (a) CH3B + KOH → CH3OH + KBr (b) CH3CH2Br — Н2С—СH2 + HBr (c) H2C=CH2 + H2 → CH3CH3arrow_forward
- Draw structures for the following compounds. Show all of the hydrogen atoms in the molecules. (a) ethanol (b) 2-propanol (c) 2-ethyl-5-methylcyclohexanolarrow_forwardWrite the reagent or draw structures of the starting material or organic product(s) in the following reactions. If more than one product is formed, identify the major product where possible. (a) (b) HO OH OH H2SO4 ? Cl₂ ? FeCl3arrow_forwardDraw structures corresponding to the following IUPAC names: (a) cis-1,2-Cyclohexanedicarboxylic acid (b) Heptanedioic acid (c) 2-Hexen-4-ynoic acidarrow_forward
- (a) Alkenes are relatively stable compounds but are more reactive than alkanes and serve as a feedstock for the petrochemical industry because they can participate in a wide variety of reactions. Predict the products obtained from following reaction. Write the chemical reaction and name the products according to IUPAC system. (i) the reaction of 3-ethyl-3-methyl-1-pentene with hydrogen bromide (ii) the reaction of 3-ethyl-2-pentene with hydrogen bromidearrow_forwardWhich alcohols can be prepared as a single product by hydroboration– oxidation of an alkene? Which alcohols can be prepared as a single product by the acid-catalyzed addition of H2O to an alkene?arrow_forwardGive the IUPAC names of the following compounds.(a) CH3CH2C‚CCOOHarrow_forward
- Chemistry: Principles and PracticeChemistryISBN:9780534420123Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward MercerPublisher:Cengage LearningChemistry: Principles and ReactionsChemistryISBN:9781305079373Author:William L. Masterton, Cecile N. HurleyPublisher:Cengage Learning