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(a)
Interpretation:
The structure for each of the given name is to be drawn.
Concept introduction:
In case of rings containing seven or less than seven carbon atoms, the Z/E configuration is usually omitted for double bonds which are a part of the ring. The E configuration about the double bond is not stable due to ring strain. It is understood that the double bonded carbon atoms have a configuration such that they are cis to each other. In case of rings consisting of more than seven carbon atoms, the double bond, which is a part of the ring, can have E or Z configuration.
If the higher priority groups, attached to the double bonded carbon atoms, are on the same side of the double bond, the
(b)
Interpretation:
The structure for each of the given name is to be drawn.
Concept introduction:
In case of rings containing seven or less than seven carbon atoms, the Z/E configuration is usually omitted for the double bonds which are a part of the ring. The E configuration about the double bond is not stable due to ring strain. It is understood that the double bonded carbon atoms have a configuration such that they are cis to each other. In case of rings consisting of more than seven carbon atoms, the double bond, which is a part of the ring, can have E or Z configuration.
If the higher priority groups, attached to the double bonded carbon atoms, are on the same side of the double bond, the alkene is assigned Z configuration. If the higher priority groups, attached to the double bonded carbon atoms, are on the opposite side of the double bond, the alkene is assigned E configuration.
(c)
Interpretation:
The structure for each of the given name is to be drawn.
Concept introduction:
In case of rings containing seven or less than seven carbon atoms, the Z/E configuration is usually omitted for the double bonds which are a part of the ring. The E configuration about the double bond is not stable due to ring strain. It is understood that the double bonded carbon atoms have a configuration such that they are cis to each other. In case of rings consisting of more than seven carbon atoms, the double bond which is a part of the ring can have E or Z configuration.
If the higher priority groups, attached to the double bonded carbon atoms, are on the same side of the double bond, the alkene is assigned Z configuration. If the higher priority groups, attached to the double bonded carbon atoms, are on the opposite side of the double bond, the alkene is assigned E configuration.
(d)
Interpretation:
The structure for each of the given name is to be drawn.
Concept introduction:
In case of rings containing seven or less than seven carbon atoms, the Z/E configuration is usually omitted for the double bonds which are a part of the ring. The E configuration about the double bond is not stable due to ring strain. It is understood that the double bonded carbon atoms have a configuration such that they are cis to each other. In case of rings consisting of more than seven carbon atoms, the double bond which is a part of the ring can have E or Z configuration.
If the higher priority groups, attached to the double bonded carbon atoms, are on the same side of the double bond, the alkene is assigned Z configuration. If the higher priority groups, attached to the double bonded carbon atoms, are on the opposite side of the double bond, the alkene is assigned E configuration.
(e)
Interpretation:
The structure for the given name is to be drawn.
Concept introduction:
In case of rings containing seven or less than seven carbon atoms, the Z/E configuration is usually omitted for the double bonds which are a part of the ring. The E configuration about the double bond is not stable due to ring strain. It is understood that the double bonded carbon atoms have a configuration such that they are cis to each other. In case of rings consisting of more than seven carbon atoms, the double bond which is a part of the ring can have E or Z configuration.
If the higher priority groups, attached to the double bonded carbon atoms, are on the same side of the double bond, the alkene is assigned Z configuration. If the higher priority groups, attached to the double bonded carbon atoms, are on the opposite side of the double bond, the alkene is assigned E configuration.
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Chapter C Solutions
ORGANIC CHEMISTRY E-BOOK W/SMARTWORK5
- Can someone tell me what the appropiate E/Z conformation for this example is?arrow_forwardWhich of the following alkenes have the Z designation? Choose all that apply.arrow_forwardwhat is the most stable newman conformation around the star bond Please provide only typed answer solution no handwritten solution needed allowedarrow_forward
- Which of the following is(are) meso compound/s?arrow_forwardProvide the least stable conformation of the following compound. Iarrow_forwarda) Enter the name of the following compound. B) Write down all the chair conformations. c) Which conformation is the most stable and explain why. d) Which conformation is the least stable and explain why.arrow_forward
- Problem: Perform a conformational analysis 2-iodo-2-methylbutane, looking down the C2—C3 bond. Pay attention to the relative energies of the various conformations, but do not concern yourself with the actual energy values. Pleae draw newman projections.arrow_forwardThe structure of a trisubstituted cyclohexane is shown, but no information is given about whether the groups are "up" or "down": that is, wedge and dash notation has not been used. Change the exo-cyclic bonds to represent the structure that will have the most stable chair conformation.arrow_forwardWhich of the conformations has a lower energy?arrow_forward
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