Several alkene compounds are given below. Indicate if each compound can exist as stereoisomers. CH_3 CH...

Question

Several alkene compounds are given below. Indicate if each compound can exist as stereoisomers.

a, CH₃CH=CHCH₃

⋅ Yes

⋅ No

b, CH₃CH=CBrCH₂CH₃

⋅ Yes

⋅ No

c,

⋅ Yes

⋅ No

d,

⋅ Yes

⋅ No

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Stereoisomerism in organic Chemistry refers to isomers where the distinction is only created by the spatial arrangement that the atoms are placed in. The atoms that bond to carbon atoms that are double-bonded on either side need to be identical. In plain English take a look at a compound that is double-bonded. carbon atoms are bonded to atoms with similar types in this case, stereoisomerism doesn't exist.

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Robert Garcia · Accepted Answer

Concepts and Reason

This concept is used to determine whether an alkene compound can exist in stereoisomers.

Fundamentals

Stereoisomers are isomers with the same molecular formula, but differ in the arrangement of the atoms.

Stereoisomers can exist for Alkenes about double bonds.

Cis/trans are stereoisomers. E/Z are stereoisomers.

If two identical groups are located on the same side of the double bond it is cis isomer.

If two identical groups are located on opposite sides of the double bonds, it is trans isomer.

If two groups with high priority are located on the same side of the double bond it will be Z isomer.

If the double bond is broken by two groups of high priority, it will be E isomer.

a. The following alkene can be found:

It is possible to exist as transstereoisomers.

b. The following alkene can be found:

It is possible to exist as E/Zstereoisomers.

c. The following alkene can be found:

It can't exist as stereoisomers.

d. The following alkene can be found:

It is possible to exist as stereoisomers.

Ans:

Part A: Yes, the given alkene is possible to exist as stereoisomers.

Part B: Yes, the given alkene is possible to exist as stereoisomers.

Part C: No, the given alkene is not possible to exist as stereoisomers.

Part D: Yes, the given alkene is possible to exist as stereoisomers.

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