Concept explainers
Interpretation:
Given alkene whether has cis, trans isomerization has to be identified and if present, the structure of trans isomer has to be drawn
Concept Introduction:
- • 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.
Alkene:
The systematic name of alkenes are written by replacing “ane” of
Trans configuration: In trans configuration, carbon atoms present in the main chain are placed on opposite sides of the carbon-carbon double bond.
Cis configuration: In cis configuration, carbon atoms present in the main chain are placed on same sides of the carbon-carbon double bond.
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Organic Chemistry
- All about Alkene, Alkyne and Alkyl halides(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 waterarrow_forwardWhich alkenes exist as pairs of cis,trans isomers? For each that does, draw the trans isomer. Q.) BrCH=CHBrarrow_forwardWhich alkenes exist as pairs of cis,trans isomers? For each that does, draw the trans isomer. Q.) CH3CH=CHBrarrow_forward
- Which of the following cycloalkanes are capable of geometric (cis-trans) isomerism?Draw the cis and trans isomers.(a) 3-ethyl-1,1-dimethylcyclohexane (b) 1-ethyl-3-methylcycloheptane(c) 1-ethyl-3-methylcyclopentane (d) 1-cyclopropyl-2-methylcyclohexanearrow_forwardWrite the bond line formula of the following compounds: (a) 4-methyl-2-hexene, two geometrical (stereoisomers) isomers (b) 3-fluoro-2-methylheptanol (3-fluoro-2-methylheptan-1-ol) (c) 4-methyl-hex-1-yn-3-olarrow_forwardDisregarding stereoisomers, draw the structures of all alkenes with molecular formula C5H10. Which ones can exist as cis–trans isomers?arrow_forward
- [10] 10] Q1. Do the following conversions as directed. Write the complete reaction equation. (a) Benzaldehyde to Benzoic Acid. (b) Propanal to 1-propanal (c) Cyclohexanone to Cyclohexanol (d) Acetaldehyde to Ethyl alcohol (e) Acetone to Iso-propyl alcoholarrow_forwardDraw the following compounds. a) 4-methyl-1,2-pentadiene b) (3E, 5Z)-2,6-dimethyl-1,3,5,7-octatetraenearrow_forwardDraw a structural formula of an alkene that undergoes acid-catalyzed hydration to give each alcohol as the major product (more than one alkene may give each alcohol as the major product). (a) 3-Hexanol (b) 1-Methylcyclobutanol (c) 2-Methyl-2-butanol (d) 2-Propanolarrow_forward
- Draw the structures for the following compounds.(a) 3-benzyl-4-bromohexane , 4,4-dimethylcyclohexene(b) trans-4,5-dibromohex-2-ene , cis-1,1-dibromo-2-ethyl-2,3-dimethylcyclobutanearrow_forward4) Draw (skeletal) and name the product(s) of the following reactions. If there is a major product, label it as such. If the reaction cannot happen, indicate this. Hydration of cis-2-butene H₂SO,/H₂Oarrow_forwardSelect the correct IUPAC name for the alkene shown. A) 2E-2,4,4-trimethyl-2-penteneB) 2Z-2,4,4-trimethyl-2-penteneC) 2,4,4-trimethyl-2-penteneD) 3E-2,2,4-trimethyl-3-penteneE) 3Z-2,2,4-trimethyl-3-pentenearrow_forward
- World of Chemistry, 3rd editionChemistryISBN:9781133109655Author:Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCostePublisher:Brooks / Cole / Cengage Learning