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Same set of carboxylate reagents yielding two different products with an alkylide
I recently came across two contrasting products for the same set of reagents - carboxylic acid and alkyllithium, and wish to understand why exactly any difference exists between the two.
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Does aldol condensation give different products in different conditions?
I know the mechanism of aldol condensation and general method to determine products in crossed aldol reactions, or reactions between dissimilar molecules. But the following statement in my class notes ...
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Is this really a comparison of the absolute energies in the reaction energy profile for ester formation?
In Clayden et al., Organic Chemistry, p. 332, the authors compare the reaction energy profile for ester formation from a) acyl chloride and b) anhydride:
They then write:
The energy levels of the ...