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
- Draw the skeletal (bond-line) structures of all isomers of C4H8O (including configurational isomers) that contain an alkene and an ether. There should be 5 structures.arrow_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) 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_forward
- Which alkenes exist as pairs of cis,trans isomers? For each that does, draw the trans isomer. Q.) CH2=CHBrarrow_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_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_forward
- The skeletal line formula for a branched alkene is shown below. (i) What is the molecular formula of this compound? (ii) How many carbon atoms are in the longest chain, ignoring the double bond? (iii) What is the longest chain incorporating both carbons of the double bond? (iv) How many substituents are on this chain? (v) Give the IUPAC name for this compound. [6]arrow_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
- Hexane 2. Name the following alkenes. (a) CH3CH2CH2CH2CH2CH=CHCH2CH3 CH2=CH-CH-CH3 CH3arrow_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_forward
- World of Chemistry, 3rd editionChemistryISBN:9781133109655Author:Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCostePublisher:Brooks / Cole / Cengage Learning