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.
Want to see the full answer?
Check out a sample textbook solutionChapter 5 Solutions
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_forwardIndicate whether each statement is true or false. (a) Twogeometric isomers of pentane are n-pentane and neopentane.(b) Alkenes can have cis and trans isomers around theCC double bond. (c) Alkynes can have cis and trans isomersaround the CC triple bond.arrow_forwardDraw line structures for the following alkenes. Which can exist as cis–trans isomers? For those that can, draw both isomers.(a) 2-Methyloct-2-ene (b) Hept-3-ene(c) 3,4-Dimethylhex-3-enearrow_forward
- Which of these alkenes show cis-trans isomerism? For each that does, draw structural formulas for both isomers.arrow_forwardWhich 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_forwardWhich alkenes exist as pairs of cis,trans isomers? For each that does, draw the trans isomer. Q.) BrCH=CHBrarrow_forward
- Which alkenes exist as pairs of cis,trans isomers? For each that does, draw the trans isomer. Q.) CH2=CHBrarrow_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_forward(b) Draw structural formulas of at least two alkynes of each molecular formula.(1) C6H10arrow_forward
- Draw a structure for each compound (includes old and new names).(a) 3-methylpent-1-ene (b) cis-3-methyl-3-hexene (c) 3,4-dibromobut-1-enearrow_forwardAll 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) Ozonolysis of 3,3-Dimethyloct-4-yne(B) Complete halogenation (Cl2) of 3-Ethyl-5-methyl-1,6,8-decatriyne(C) Partial hydrogenation using Lindlar’s Catalyst 2,2,5,5-Tetramethylhex-3-ynearrow_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
- World of Chemistry, 3rd editionChemistryISBN:9781133109655Author:Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCostePublisher:Brooks / Cole / Cengage Learning