1. Of the many conformations, which appears best for the ring: a planar of a puc
ID: 551254 • Letter: 1
Question
1. Of the many conformations, which appears best for the ring: a planar of a puckered arrangement?
2. Based on above the four isomers you created, which pairs are constitutional isomers of one another? (Hint: there is one pair that are not constitutional isomers - they are known as steroisomers)
Now put together as many structures as you can that correspond to an acyclic alkene with four carbon atoms and one double bond You should have put together the following four isomers drawn as bond-line diagrams:Explanation / Answer
1) For a ring puckered structure is always better than flat structure as in puckered structure, all the carbons are not in the same plane , thus avoiding the angle strain, some steric and torsional strains.
2) A and B are constitutional isomers (the C chain is not same)
A and C are constitutional isomers ( the position of double bond is different)
A and D ar also constitutional isomers ( position of double bond)
B and C , B and D are constitutional isomers to each other.
LASTLY C and D are geometric isomers NOT constitutional isomers.
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