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- The following pKa values have been measured. Explain why a hydroxyl group in the para position decreases the acidity while a hydroxyl group in the meta position increases the acidity.What reagents are needed to carry out the following syntheses?Draw reaction of an Α,β -unsaturated carboxylic acid derivative with a nucleophile forms a nucleophilic acyl substitution product with a reactive carbonyl group and a conjugate addition product with a less reactive carbonyl group
- What reagents are required to carry out the following synthesis?The following molecule undergoes an intramolecular reaction in the presence of pyrro- lidinium acetate, the protonated form of pyrrolidine. Draw the product of this reaction, assuming that a dehydration reaction takes place. Me Me Но N: 'N' AcO Ме pyrrolidinium acetate Me Me MeWhen a cyclic ketone reacts with diazomethane, the next larger cyclic ketone is formed. This is called a ring-expansion reaction. Draw a mechanism for the following ring-expansion reaction.
- What reagents are used to carry out the following reaction?Which of the following reactions does NOT lead to the carbonyl product shown? ii oia ..i ci Я осно وه مره NH₂ OH + + + H₂O HO HCI A HCI CI OH loDraw the product when each compound is treated with either (CH3)2CuLi, followed by H2O, or HC≡CLi, followed by H2O.
