Question

3. The nucleophilic addition reaction of a Grignard reagent to an aldehyde or ketone is irreversible because: A. Grignard reagents are strong electrophiles and good leaving groups B. Aldehydes and ketones are stable and reactions with nucleophiles are always irreversible C. Grignard reagents are strong nucleophiles and poor leaving groups D. Aldehydes and ketones are unstable and reactions with weak nucleophiles are always irreversible 4. The sterochemical outcome of an unactivated Wittig reagent (phosphorous ylide) reaction with a ketone or aldehyde gives: A. Syn addition B. Anti-Markovnikof addition C. E-stereoisomer D. Z-stereoisomer E. Racemic mixture 5. Which product is expected to form from the Baeyer Villiger oxidation of the compound shown? MCPBA ? I II III IV V A. III B. I C. V D. II E. IV

          3. The nucleophilic addition reaction of a Grignard reagent to an aldehyde or ketone is irreversible because:
A. Grignard reagents are strong electrophiles and good leaving groups
B. Aldehydes and ketones are stable and reactions with nucleophiles are always irreversible
C. Grignard reagents are strong nucleophiles and poor leaving groups
D. Aldehydes and ketones are unstable and reactions with weak nucleophiles are always irreversible

4. The sterochemical outcome of an unactivated Wittig reagent (phosphorous ylide) reaction with a ketone or aldehyde gives:
A. Syn addition
B. Anti-Markovnikof addition
C. E-stereoisomer
D. Z-stereoisomer
E. Racemic mixture

5. Which product is expected to form from the Baeyer Villiger oxidation of the compound shown?
MCPBA ?
I II III IV V
A. III
B. I
C. V
D. II
E. IV

3. The nucleophilic addition reaction of a Grignard reagent to an aldehyde or ketone is irreversible because:
A. Grignard reagents are strong electrophiles and good leaving groups
B. Aldehydes and ketones are stable and reactions with nucleophiles are always irreversible
C. Grignard reagents are strong nucleophiles and poor leaving groups
D. Aldehydes and ketones are unstable and reactions with weak nucleophiles are always irreversible

4. The sterochemical outcome of an unactivated Wittig reagent (phosphorous ylide) reaction with a ketone or aldehyde gives:
A. Syn addition
B. Anti-Markovnikof addition
C. E-stereoisomer
D. Z-stereoisomer
E. Racemic mixture

5. Which product is expected to form from the Baeyer Villiger oxidation of the compound shown?
MCPBA ?
I II III IV V
A. III
B. I
C. V
D. II
E. IV

Added by Alyssa R.

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