(a)
Interpretation:
The compounds needed to carry out Step [1] are to be stated.
Concept introduction:
In crossed claisen condensation reaction, the base abstracts the acidic proton from
(b)
Interpretation:
The compounds needed to carry out Step [1] are to be stated.
Concept introduction:
In crossed claisen condensation reaction, the base abstracts the acidic proton from
(c)
Interpretation:
The detailed mechanism for step [3] is to be drawn.
Concept introduction:
When only one carbonyl component has an alpha hydrogen atom, then a cross aldol reaction will occur. There will be formation of only one product. The yield of single cross aldol condensation reaction is enhanced if the electrophilic carbonyl compound is relatively unhindered.
(d)
Interpretation:
The detailed mechanism for step [4] is to be drawn. The reason as to why the product formed is unusual is to be stated.
Concept introduction:
When only one carbonyl component has an alpha hydrogen atom, then a cross aldol reaction will occur. There will be formation of only one product. The yield of single cross aldol condensation reaction is enhanced if the electrophilic carbonyl compound is relatively unhindered.
(e)
Interpretation:
The reason behind the unnecessary addition and removal of formyl group is to be predicted.
Concept introduction:
When only one carbonyl component has an alpha hydrogen atom, then a cross aldol reaction will occur. There will be formation of only one product. The yield of single cross aldol condensation reaction is enhanced if the electrophilic carbonyl compound is relatively unhindered.
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Organic Chemistry
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