Concept explainers
Interpretation:
The structures of
Concept introduction:
The general molecular formula
Cis-trans terminology is used for two non-similar groups attached alkenes and cycloalkanes.
If the two identical groups are attached on each side of double bond in same side, then it is cis alkenes.
If the two identical groups are attached on each side of double bond in opposite manner, then it is trans alkenes.
If the substituents attached on same sides of cycloalkane, then the compound is cis isomer.
If the substituents attached on opposite sides of cycloalkane, then the compound is trans isomer.
Want to see the full answer?
Check out a sample textbook solutionChapter 4 Solutions
Organic Chemistry, Books a la Carte Edition (8th Edition)
- 5B In the following reactions, mixtures of alkenes and ethyl ethers are formed. Draw their structures. Explain which is or are likely to be the main product(s) in each reaction. In case of formation of two isomers of alkenes, explain which is formed in greater proportion CH3 CH3 H3C-C H -Br CH3 EtOHarrow_forwardWhich alkenes exist as pairs of cis,trans isomers? For each that does, draw the trans isomer. Q.) BrCH=CHBrarrow_forward(a) Draw the condensed structural formulas for the cis andtrans isomers of 2-pentene. (b) Can cyclopentene exhibitcis–trans isomerism? Explain. (c) Does 1-pentyne haveenantiomers? Explain.arrow_forward
- Among alkenes, alkynes, and aromatic hydrocarbons, onlyalkenes exhibit cis-transisomerism. Why don’t the others?arrow_forwardButanal (C4H&O) has eight H atoms. Suppose that any of these H atoms can be replaced by a Cl atom to yield a molecule with the formula C4H¬CIO. (a) Identify two H atoms where this substitution would yield constitutional isomers of C4H7CIO; (b) enantiomers of C4H;CIO; (c) conformers of C4H;CIO. H. H H H нн H Butanal O=Uarrow_forwardname and draw structural formulas for all cyclo-alkanes with the molecular formula C5H10. Be certain to include cis-trans isomers, as well as constitutional isomersarrow_forward
- IV. Compounds A and B are isomers of the molecular formula C9H19Br. Both yield the same alkene Cin an elimination reaction. Hydrogenation of C yields the product 2,3,3,4 tetramethyl pentane. What are the structures of A, B, and C?arrow_forward2,3-Dibromoprop-1-ene (C3H4Br2) has four H atoms. Suppose that any of these H atoms can be replaced by a Cl atom to yield a molecule with the formula C3H3Br,Cl. (a) Identify two H atoms where this substitution would yield constitutional isomers of C3H3Br,CI; (b) enantiomers of C3H3Br,Cl; (c) diastereomers of C3H3Br,Cl. H нн H Br Br 2,3-Dibromoprop-1-enearrow_forwardWhich alkenes exist as pairs of cis,trans isomers? For each that does, draw the trans isomer. Q.) CH2=CHBrarrow_forward
- 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_forwardHow many alkenes have the molecular formula C5H10, ie structural isomers with a double bond. Count cis and trans isomers as separate compounds? 3 S 8arrow_forwardCompounds A and B are isomers of the molecular formula C9H19Br. Both yield the same alkene C in an elimination reaction. Hydrogenation of C yields the product 2,3,3,4 tetramethyl pentane. What are the structures of A, B, and C?arrow_forward
- Chemistry: The Molecular ScienceChemistryISBN:9781285199047Author:John W. Moore, Conrad L. StanitskiPublisher:Cengage Learning